# Description

Engineering tool for geometric properties calculation.

Geoprops is a calculator of geometric properties for various section types. It mainly addresses Civil / Structural Engineers, but can be used by any Student who needs to calculate the area and the geometric center of a shape. It allows the user to calculate various geometric and mechanical properties like area, centroid, moment of inertia, and many others for an exhaustive library of predefined sections, as well as custom shapes defined through their nodes. Special features enable the user to change the origin and the orientation of the coordinate axis, making it easy to calculate the properties of the section relative to any reference system. The user can also set the number of decimals for the results, as well as the units to be used. Different units may be used for the inputs and for the results. The calculation summary can by sent by mail or Google Drive.

The following sections are currently available:

- custom (the user can enter a section through its nodes)

- triangle (full and hollow);

- circle (full and hollow);

- rectangle (full and hollow);

- trapeze (full and hollow);

- rounded rectangle (full and hollow);

- ellipse (full and hollow);

- regular polygon (full and hollow);

- star (full and hollow);

- circle sector;

- circle segment;

- L profile;

- C profile;

- Z profile;

- I profile;

- T profile;

- cross.

Other sections may be added upon user request.

The following outputs are available:

A – area;

P – perimeter;

P0 – inner perimeter, for hollow sections;

xg, yg – coordinates of the centroid;

M - mass;

Ixx, Iyy – moments of inertia about X and respectively Y axis;

Izz – polar moment of inertia;

Ixy – product of inertia;

I1, I2 – principal moments of inertia about centroid;

theta – angle of the principal axis of inertia;

rx, ry – radius of gyration about X and respectively Y axis;

wx, wy – section modulus about X and respectively Y axis.

Visit http://www.facebook.com/geoprops to stay updated about future promotions.

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# Reviews

Helpfulness

Newest

Rating

Helpfulness

All Versions

All Versions

Latest Version

4.6

14 total

5 10

4 3

3 1

2 0

1 0

Leonardo Duran

Very good. Still could be better. Every program could be better, doesn't mean it doesn't deserve excellent rating. This program is excellent. The best one out there, and I'm happy to give it 5 stars. But, if I can request some things for future updates: 1: in custom shape, add the ability to subtract inertias, from subtracted areas from the sections. 2: Add "Light Gauge Metal" shapes on there such as "c" shape with lip. 3: Fix the"Archive" button. Now if it is pressed it freezes the program. But great overall, Thank You

Luay Rustom

Eng. Luay Please update it and check the moment if inertia results in custom shape , when i compare the results with my calculation , find the results not right.

subbarao yarramsetty

Rao Please update it so that we can store the solution. It would be top no 1app once you do this.

User reviews

espengineer May 9, 2014

Hi, thank you for your positive feedback and for your recommendations. Concerning the bug, it is now fixed (version 2.1). espengineer November 18, 2013

Hello, after verification I found that the results of the calculation are correct. Review deleted

# What's New

- added section weight calculation

The complete set of release notes can be found at: http://facebook.com/geoprops

# Additional information

Updated

May 25, 2014

Size

2.2M

Installs

100 - 500

Current Version

2.2

Requires Android

4.0 and up

Content Rating

Everyone

Permissions

Report

Flag as inappropriate Offered By

espengineer

Developer

# Similar

## Solid Mechanics

This simple yet elegant tool will allow you to swiftly calculate the engineering stresses and strains for a wide variety of standard loading conditions.

PROFESSIONALS

Quickly and accurately perform "back of the envelope" calculations, or quick checks with ease using the built in unit conversion and One-Touch main screen function access.

POST SECONDARY STUDENTS ( Mechanical, Aerospace, Civil Engineering, etc... )

Make your problem sets, labs and design projects a breeze with multiple pre-programmed common loading conditions, cross-sections and formula display.

Make all of your engineering stress and strain calculations simple, featuring:

- Reference equations & diagrams

- Integration of sub-equations - (Press the |Sub| button)

- Standard loading conditions for tensile, compressive and shear stresses

- Built-in unit conversion

- Dynamic calculation

- Prominent tabbed output display

- Simplified main screen layout with icons for quick identification

- Built-in Cross-section property calculators

With the integration of sub-equations, you can benefit from the added ease of determining critical design inputs through additional equations if you have not determined the specific value beforehand. (Press the |Sub| button)

The prominent tabbed output display makes the answer always directly at hand by displaying the output(s) at the top of the screen. By grouping calculators that can output multiple design parameters in a compact and easy to use "tabbed" display, you can "swipe or tap" left and right on the output field and view all of your results.

Simplify your calculations with built-in cross-section property calculators for a wide variety of standard shapes and never have to calculate area (A), area moment of inertia (I) or polar moment of inertia (J) by hand again. All you need to press is the |Sub| button beside the cross-section property of interest.

Included calculators:

1. Axial Stress

2. Axial Strain

3. Axial Deflection

4. Bending Stress

5. Convert Stress to Strain

6. Convert Strain to Stress

7. Direct Shear Stress

8. Transverse Shear Stress

9. Torsional Shear Stress – (Circular)

10. Torsional Shear Stress – (Non Circular)

11. Torsional Twist – (Circular)

12. Torsional Twist – (Non Circular)

13. Thin Walled Pressure Vessels

14. Thick Walled Pressure Vessels

Units Conversions Supported:

Stress / Pressure: Pa, kPa, MPa, GPa, psi, kpsi

Strain: unitless, %, Millistrain, Microstrain, Nanostrain

Force: N, kN, MN, GN, nN, uN, mN, lbf, kgf

Length: m, mm, um, nm, in, ft

Moment / Torque: N-m, N-mm, kN-m, kN-mm, lb-ft, lb-in, oz-ft, oz-in, kg-mm, kg-m, g-mm, g-m

Area: m^2, mm^2, cm^2, um^2, nm^2, in^2, ft^2

Moment of Inertia / Polar Moment of Inertia: m^4, mm^4, cm^4, um^4, nm^4, in^4, ft^4

Angle: degrees, radians

Standard Cross-section Properties for A, I and J Supported:

Area (A):

Square, Hollow Square, Rectangle, Hollow Rectangle, Circle, Hollow Circle, I-Beam, Circular Sector, Tubular Sector, Ellipse, Ellipse, Triangle (3 Sides), Triangle (Based & Height), Trapezoid (Trapezium), Parallelogram, Pentagon, Hexagon, Heptagon, Octagon, Nonagon, Decagon

Area Moment of Inertia (I):

Rectangle, Hollow Rectangle, Circle, Hollow Circle, I-Beam, Semicircle, Ellipse, General Triangle, Right Triangle, Isosceles Triangle

Polar Moment of Inertia (J):

Circle, Hollow Circle

Non-Circular Torsion Q&K Factors (Q/K):

Square, Hollow Square, Rectangle, Hollow Rectangle, Ellipse, Hollow Ellipse, Open Circular Tube, Open Arbitrary Shape

Simple Solutions Droid is dedicated to providing you with simple solutions to your complex technical problems.

We appreciate any and all feedback on our Apps so we can help provide better solutions to you, our valued customers.

Please note that this product is intended as a reference tool only and is not a substitute for formal engineering design verification.

For other Apps and more information please visit our website at:

http://www.ssdroid.com

Sincerely,

Team SSDroid

## Solid Mechanics 2

This quick and easy tool will allow you to calculate the resultant forces and stresses encountered in many common design scenarios.

PROFESSIONALS

Quickly and accurately analyze the stress levels in common design elements and forces which result from real-world scenarios like impact loading and buckling. With built-in unit conversions, never worry about the unit scale again.

POST SECONDARY STUDENTS (Mechanical, Aerospace, Civil Engineering, etc...)

Make your problem sets, labs and design projects a breeze with pre-written formulae which are commonly taught in engineering schools. Improve the quality of your designs by considering multiple failure modes at the design stage quickly, and easily.

Simplify your engineering calculations with:

- Reference equations & diagrams

- Integration of sub-equations - (Press the |Sub| button)

- Dynamic calculation

- Built-in unit conversion

- Prominent tabbed output display

- Simplified main screen layout with icons for quick identification

- Built-in Cross-section property calculators

Either for reference or for double-checking, conveniently view each diagram and equation at the bottom of each calculator's screen in an easy to read graphical layout like you see in reference textbooks.

With the integration of sub-equations, you can benefit from the added ease of determining critical design inputs through additional equations if you have not determined the specific value beforehand. (Press the |Sub| button)

Dynamic calculation allows you to vary design parameters rapidly and see their result without ever having to re-calculate.

Input your parameters in standard units of measure in engineering without having to do your own conversions.

The prominent tabbed output display makes the answer always directly at hand by displaying the output(s) at the top of the screen. By grouping calculators that can output multiple design parameters in a compact and easy to use "tabbed" display, you can "swipe or tap" left and right on the output field and view all of your results.

Simplify your calculations with built-in cross-section property calculators for a wide variety of standard shapes and never have to calculate area (A) or area moment of inertia (I) by hand again. All you need to press is the |Sub| button beside the cross-section property of interest.

Included calculators:

1. Impact Force (Horizontal)

2. Impact Force (Vertical)

3. Curved Beam Stress

4. Direct Bearing Stress

5. Tearout Shear Stress

6. Buckling (Concentric Loading)

7. Principal Stresses 2D

8. Principal Stresses 3D

9. Von Mises Stress (From Principal Stresses) - Ductile

10. Von Mises Stress (From General Stresses) - Ductile

11. Modified-Mohr Stress - Brittle

Units Conversions Supported:

Stress / Pressure: Pa, kPa, MPa, GPa, psi, kpsi

Strain: unitless, %, Millistrain, Microstrain, Nanostrain

Force: N, kN, MN, GN, nN, uN, mN, lbf, kgf

Length: m, mm, um, nm, in, ft

Area: m^2, mm^2, cm^2, um^2, nm^2, in^2, ft^2

Moment of Inertia: m^4, mm^4, cm^4, um^4, nm^4, in^4, ft^4

Standard Cross-section Properties for A and I Supported:

Area (A):

Square, Hollow Square, Rectangle, Hollow Rectangle, Circle, Hollow Circle, I-Beam, Circular Sector, Tubular Sector, Ellipse, Ellipse, Triangle (3 Sides), Triangle (Base & Height), Trapezoid, Parallelogram, Pentagon, Hexagon, Heptagon, Octagon, Nonagon, Decagon

Area Moment of Inertia (I):

Rectangle, Hollow Rectangle, Circle, Hollow Circle, I-Beam, Semicircle, Ellipse, General Triangle, Right Triangle, Isosceles Triangle

Simple Solutions Droid is dedicated to providing you with simple solutions to your complex technical problems.

We appreciate any and all feedback on our Apps so we can help provide better solutions to you, our valued customers.

Please note that this product is intended as a reference tool only and is not a substitute for formal engineering design verification.

For other Apps and more information please visit our website at:

http://www.ssdroid.com

Sincerely,

Team SSDroid

## Geoprops Lite

Engineering tool for geometric properties calculation.

Geoprops is a calculator of geometric properties for various section types. It mainly addresses Civil / Structural Engineers, but can be used by any Student who needs to calculate the area and the geometric center of a shape. It allows the user to calculate various geometric and mechanical properties like area, centroid, moment of inertia, and many others for an exhaustive library of predefined sections, as well as custom shapes defined through their nodes. Special features enable the user to change the origin and the orientation of the coordinate axis, making it easy to calculate the properties of the section relative to any reference system. The user can also set the number of decimals for the results, as well as the units to be used. Different units may be used for the inputs and for the results. The calculation summary can by sent by mail or Google Drive.

The following sections are currently available:

- custom (the user can enter a section through its nodes)

- triangle (full and hollow);

- circle (full and hollow);

- rectangle (full and hollow);

- trapeze (full and hollow);

- rounded rectangle (full and hollow);

- ellipse (full and hollow);

- regular polygon (full and hollow);

- star (full and hollow);

- circle sector;

- circle segment;

- L profile;

- C profile;

- Z profile;

- I profile;

- T profile;

- cross.

Other sections may be added upon user request.

The following outputs are available:

A – area;

P – perimeter;

P0 – inner perimeter, for hollow sections;

xg, yg – coordinates of the centroid;

M - mass;

Ixx, Iyy – moments of inertia about X and respectively Y axis;

Izz – polar moment of inertia;

Ixy – product of inertia;

I1, I2 – principal moments of inertia about centroid;

theta – angle of the principal axis of inertia;

rx, ry – radius of gyration about X and respectively Y axis;

wx, wy – section modulus about X and respectively Y axis.

Visit http://www.facebook.com/geoprops to stay updated about future promotions.

## Pro Anchors

Calculate the lengths of anchor overlaps, distances and coatings reinforced concrete structures according to the instruction of Structural Concrete EHE-2008.

Utility for Construction Students and Professionals, Technical Architects, Engineers Building, Architects and Engineers.

Professional version without Advertising.

Utility for Construction Students and Professionals, Technical Architects, Engineers Building, Architects and Engineers.

Professional version without Advertising.

## EpicFEM Dynamic

MODAL ANALYSIS of complex beam structures.

Calculate the natural frequencies and mode shapes of your beam structure.

Full compatibility with EpicFEM.

Make documentation of your work fast and simple and share it with your clouds, friends or co-workers.

Calculate the natural frequencies and mode shapes of your beam structure.

Full compatibility with EpicFEM.

Make documentation of your work fast and simple and share it with your clouds, friends or co-workers.

Features:

Loading:

* Self weight

* Nodal Force

* Nodal Moment

* Distributed loads

* Triangular varying load

* Automatic load to mass conversion

Sections:

* Database, EURO and US

* Custom sections

Materials:

* Steel

* Concrete

* Timber

* Aluminum

* User-defined

Supports:

* Simple

* Clamped

* Fixed

* Springs:

* Spring Vertical

* Spring Rotational

Graphs:

* Modeshapes

* Animation of mode shapes

* Write-2-PDF

* Save PDF to SD-card

* Load/Save projects

* SI units

* Imperial units

Mass Matrix:

* Consistent

* Lumped without rotation

* Lumped with rotation

Tags: FE FEM FEA Modal Dynamics Finite Element Method Analysis Beam Structure Mechanics Civil Engineering Calculations 2D Steel Concrete Timber Aluminum US Section Profile Custom Design Write to PDF Frequency Eigenvalue Eigenvector

## MatrixToolbox

Matrix Software presents structural analysis and code check app for mechanical and structural engineers.

Matrix Toolbox offers you section library to use for free, other modules can be purchased using auto-renewing subscriptions.

Using subscription you can get access to:

◦ Concrete code check M;Rd calculations according to EN;

◦ Concrete code check M;Rd calculations according to NEN-EN;

◦ Concrete code check V;Rd calculations according to EN;

◦ Concrete code check V;Rd calculations according to NEN-EN;

◦ Steel cross section code check calculations for EN;

◦ Steel cross section code check calculations for NEN-EN;

◦ Timber cross section code check calculations for EN;

◦ Timber cross section code check calculations for NEN-EN;

◦ Timber cross section code check calculations for NBN-EN;

## Solid Mechanics Free

This simple yet elegant tool will allow you to swiftly calculate the engineering stresses and strains for a wide variety of standard loading conditions.

Through a sponsorship program by Dassault Systèmes, creators of the 3D Design software SOLIDWORKS and CATIA, this app has been made free for a limited time only!

This version of the app contains ads, for an ad free version check out the Solid Mechanics PLUS app:

https://play.google.com/store/apps/details?id=com.ssdroid.solidmechanics1plus

PROFESSIONALS

Quickly and accurately perform "back of the envelope" calculations, or quick checks with ease using the built in unit conversion and One-Touch main screen function access.

POST SECONDARY STUDENTS ( Mechanical, Aerospace, Civil Engineering, etc... )

Make your problem sets, labs and design projects a breeze with multiple pre-programmed common loading conditions, cross-sections and formula display.

Make all of your engineering stress and strain calculations simple, featuring:

- Reference equations & diagrams

- Integration of sub-equations - (Press the |Sub| button)

- Standard loading conditions for tensile, compressive and shear stresses

- Built-in unit conversion

- Dynamic calculation

- Prominent tabbed output display

- Simplified main screen layout with icons for quick identification

- Built-in Cross-section property calculators

Included calculators:

1. Axial Stress

2. Axial Strain

3. Axial Deflection

4. Bending Stress

5. Convert Stress to Strain

6. Convert Strain to Stress

7. Direct Shear Stress

8. Transverse Shear Stress

9. Torsional Shear Stress – (Circular)

10. Torsional Shear Stress – (Non Circular)

11. Torsional Twist – (Circular)

12. Torsional Twist – (Non Circular)

13. Thin Walled Pressure Vessels

14. Thick Walled Pressure Vessels

Units Conversions Supported:

Stress / Pressure: Pa, kPa, MPa, GPa, psi, kpsi

Strain: unitless, %, Millistrain, Microstrain, Nanostrain

Force: N, kN, MN, GN, nN, uN, mN, lbf, kgf

Length: m, mm, um, nm, in, ft

Moment / Torque: N-m, N-mm, kN-m, kN-mm, lb-ft, lb-in, oz-ft, oz-in, kg-mm, kg-m, g-mm, g-m

Area: m^2, mm^2, cm^2, um^2, nm^2, in^2, ft^2

Moment of Inertia / Polar Moment of Inertia: m^4, mm^4, cm^4, um^4, nm^4, in^4, ft^4

Angle: degrees, radians

Standard Cross-section Properties for A, I and J Supported:

Area (A):

Square, Hollow Square, Rectangle, Hollow Rectangle, Circle, Hollow Circle, I-Beam, Circular Sector, Tubular Sector, Ellipse, Ellipse, Triangle (3 Sides), Triangle (Based & Height), Trapezoid (Trapezium), Parallelogram, Pentagon, Hexagon, Heptagon, Octagon, Nonagon, Decagon

Area Moment of Inertia (I):

Rectangle, Hollow Rectangle, Circle, Hollow Circle, I-Beam, Semicircle, Ellipse, General Triangle, Right Triangle, Isosceles Triangle

Polar Moment of Inertia (J):

Circle, Hollow Circle

Non-Circular Torsion Q&K Factors (Q/K):

Square, Hollow Square, Rectangle, Hollow Rectangle, Ellipse, Hollow Ellipse, Open Circular Tube, Open Arbitrary Shape

Simple Solutions Droid is dedicated to providing you with simple solutions to your complex technical problems.

We appreciate any and all feedback on our Apps so we can help provide better solutions to you, our valued customers.

Please note that this product is intended as a reference tool only and is not a substitute for formal engineering design verification.

For other Apps and more information please visit our website at:

http://www.ssdroid.com

Sincerely,

Team SSDroid

## Area Calculator Free

With AreaCalculator you can calculate the area enclosed by geographic coordinates. You can input coordinates either by using GPS or by typing them in manually(In paid version). Can also be used to measure distance.

- Calculate area

- Measure distance

- Supports Metric and Imperial units

- Save results to memory card(In paid version)

## GPS Area Distance Calculator

With GPS and Map Area and Distance Calculator you can measure on map or with GPS distances between unlimited points, the Air Distance between first and the last point and the closed area.

GPS Location you can enter ist manual or automatically by switching the GPS Tracker on.

NEW - Version 2.11 allows measuring in one screen UNLIMITED areas

- easy switsch between the areas

- using the passive areas as border for active area

- measurement with GPS or direct on the map (long click on the map). You can combine the both ways as you like

With this APP you can measure EVERY area precisely, using GPS or direct input on map, and the calculation is done.

As example is Nordeney-Germany Wiki says Area of 26,29 km2, fast in less in minute direct on map - and result is 26,76 km 2 - our Picture 1

GPS Area calculator starts to calculate you area, when you have entered an least 3 Points. After entering another Point the GPS Area Calculator recalculates the area dynamically.

You can make the measure directly on the screen or enter the GPS coordinates

The following feature are avaible:

- Area can consist of unlimited sides

- Units can set to metric or imperials

- save unlimited areas

- edit any area, so do not need to have open all the time application. You can add new points any time

- help activity availble

- goto any new location

Just try and enjoy it

## Mohr's Circle Advanced (free)

This Mohr's Circle calculator for Android makes it easy to generate Mohr's Circle for stress.

Use on the job! Check your homework! Have fun!

*The free version is only 2D and stress. Upgrade to get 3D Mohr's Circle and Mohr's Circle for strain.*

Features of the free version:

- 2D Mohr's Circle.

- Compute principal stresses.

- Compute maximum shear stress.

- Determine the shear modulus (G), bulk modulus (K), and Lame's 1st constant from Young's modulus and Poisson's ratio.

- View tensor properties such as principal directions and von Mises stress.

Upgrade to the paid version and you'll also have:

- 3D Mohr's Circle.

- Convert between stress and strain.

- Convert between 2D and 3D.

- Principal strains and maximum shear strain.

- Strain rosette input with *any* gauge angles (new!).

## Mechanical Calculator

A Mechanical Calculator used to perform automatically the basic operations of arithmetic.

Mechanical Engineering Calculators to calculate, model, and depict multifaceted engineering problems and to save calculations for future use.

There are two main functions of mechanical engineering software – calculation management and design.

## Easy Beam Analysis

It seems many beam calculator apps only give you what you can find in the appendix of most engineering textbooks. Why get a beam calculator app that only does the bare minimum and provides standard template for beam analysis. Easy beam can handle any beam, simple or very complex.

Easy Beam allows you to easily and swiftly calculate reaction forces, shear force and bending moment, slope, deflection and stress diagrams for beam analysis. What sets Easy Beam apart from other apps is its ability to customize a beam however you need it to be to suit your beam analysis and the sleekness of the app - drawing everything to your screen how you want it. Easy Beam follows along the principles of statics and dynamics, mechanics of materials, and solid mechanics and is thus very applicable to structure engineering and mechanical engineering.

Easy Beam makes is a perfect tool for engineering students to accompany homework problems and check for solutions to their statics, mechanics of materials, or solid mechanics problems. It is also very usable for professionals in structural and mechanical engineering to make quick calculations regarding beam calculations.

Easy Beam supports two modes: Statically Determinate Beam, and Continuous Beam.

In the Statically Determinate section you are able to put point loads, distributed loads, triangle distributed loads, and moments anywhere on the beam. Essentially you can customize it however you like provided it is statically determinate. You can now draw out shear forces and bending moment diagrams. Create a cross section and you can do a bending stress analysis on the beam. Test your beam design by entering a material or a custom elastic modulus and you can see the deflection graph for the beam. At any time you can see your current loads on the main menu.

In the Continuous Beam section you can have multiple spans. This section supports span distributed loads as well as point loads anywhere on the beam. The idea is the same but the setup includes defining the lengths of each span, and moments of inertias of each span etc. The Continuous Beam section is perfect for structure engineers who need a more advanced beam design that requires multiple spans. The Continuous Beam utilizes the Three Moment Equation which is a robust technique for solving reaction forces, shear force and bending moment, and slope and deflection of continuous beams.

Easy Beam also takes care of the units for you and does conversions on the spot. It also has the elastic modulus of many common materials stored for convenience. Easy beam also calculates area moment of inertia for you whether you have a rectangular, circular, hollow, or I-Beam cross section. Or just input your custom area moment of inertia.

Statics, Mechanics of Materials, and Solid Mechanics have just become much easier and convenient with Easy Beam. Easy Beam was created by an Engineer for other Engineers, student or professional. Easy Beam allows you to make back of the envelope Beam Calculations in seconds or reduce Statics, Mechanics of Materials, and Solid Mechanics homework from hours to minutes.

Interactive graphs allow the user to pinpoint shear force and bending moment anywhere on the beam or determine where the max deflection will occur in their beam design. That's because Easy Beam's graph allow the user to use a seek bar to move a cursor along the graphs. By default, the graphs also display local min and max values on the screen for your convenience.

All in all, Easy Beam allows you to conduct Beam Calculations be it for Statics, Mechanics of Materials, Solid Mechanics, Structural Engineering, Mechanical Engineering, or whatever else you may need. Solving shear force and bending moment problems takes no time and continuous beams are very easy to check and solve. I hope you enjoy Easy Beam.

# More from developer

## Compass

Most people know how to use a compass to determine where north is. Few know how to use it as a navigation tool. The ability to navigate with a compass and a map is one of the major skills in hiking. This compass is not just a simple north direction indicator but is intended to be used as a real orientation tool for hiking activities. So learn how to properly use a compass and always have it on you.

Prerequisite: Your device must have an integrated compass sensor to function properly.

Highlights:

+ Orienting compass functions

+ Suitable for camping, hiking, and other outdoor activities

+ HD graphics

+ Quick step by step use guide

Features:

+ Rotating bezel

+ Rotating orienting arrow

+ Adjustable magnetic declination

+ Fine tune of the rotating bezel

+ Fine tune of the orienting arrow

+ Clinometer

## Compass Pro

Most people know how to use a compass to determine where north is. Few know how to use it as a navigation tool. The ability to navigate with a compass and a map is one of the major skills in hiking. This compass is not just a simple north direction indicator but is intended to be used as a real orientation tool for hiking activities. So learn how to properly use a compass and always have it on you.

Prerequisite: Your device must have an integrated compass sensor to function properly.

Highlights:

+ Orienting compass functions

+ Suitable for camping, hiking, and other outdoor activities

+ HD graphics

+ Quick step by step use guide

Features:

+ Rotating bezel

+ Rotating orienting arrow

+ Adjustable magnetic declination

+ Fine tune of the rotating bezel

+ Fine tune of the orienting arrow

+ Clinometer

Pro version:

+ No ads

## Battery Charge Timer Lite

Battery Charge Timer allows you to evaluate the time required to charge your rechargeable batteries, depending on the battery capacity, the charging current and the energy loss. If you want to be alerted when it's time to disconnect the charger, you can set a timer to notify you. If you want to make the most of your rechargeable batteries, this app is for you!

## Geoprops Lite

Geoprops is a calculator of geometric properties for various section types. It mainly addresses Civil / Structural Engineers, but can be used by any Student who needs to calculate the area and the geometric center of a shape. It allows the user to calculate various geometric and mechanical properties like area, centroid, moment of inertia, and many others for an exhaustive library of predefined sections, as well as custom shapes defined through their nodes. Special features enable the user to change the origin and the orientation of the coordinate axis, making it easy to calculate the properties of the section relative to any reference system. The user can also set the number of decimals for the results, as well as the units to be used. Different units may be used for the inputs and for the results. The calculation summary can by sent by mail or Google Drive.

The following sections are currently available:

- custom (the user can enter a section through its nodes)

- triangle (full and hollow);

- circle (full and hollow);

- rectangle (full and hollow);

- trapeze (full and hollow);

- rounded rectangle (full and hollow);

- ellipse (full and hollow);

- regular polygon (full and hollow);

- star (full and hollow);

- circle sector;

- circle segment;

- L profile;

- C profile;

- Z profile;

- I profile;

- T profile;

- cross.

Other sections may be added upon user request.

The following outputs are available:

A – area;

P – perimeter;

P0 – inner perimeter, for hollow sections;

xg, yg – coordinates of the centroid;

M - mass;

Ixx, Iyy – moments of inertia about X and respectively Y axis;

Izz – polar moment of inertia;

Ixy – product of inertia;

I1, I2 – principal moments of inertia about centroid;

theta – angle of the principal axis of inertia;

rx, ry – radius of gyration about X and respectively Y axis;

wx, wy – section modulus about X and respectively Y axis.

Visit http://www.facebook.com/geoprops to stay updated about future promotions.

## Chronometer

Chronometer is a reliable, easy to use time measuring app. Its features include a stopwatch and a countdown timer. The app will continue the time measurement in background if minimized.

Stopwatch

The stopwatch feature allows you to measure elapsed times. By using the corresponding buttons, the stopwatch can be started, paused, resumed, and reset. By pressing the "Lap" button you can record the current time. In landscape mode, in addition to the elapsed time, you can see the number of laps, the last lap time and the current lap time.

Times

As you record laps with the stopwatch, they are added to a list in the "Times" view. The laps are ordered in descending order. For each lap in the list, you can see the lap number, the elapsed time, and the lap time. The elapsed time is the time past from the beginning of the measurement up to the moment when the lap was added. The lap time is the time past since the previous lap was added. At the bottom of the screen, you can see the average of your lap times. The "Save" button placed on the action bar allows you to share your list of lap times by sending it to one of the appropriate apps installed in your device (Gmail, Dropbox, Drive, Facebook, etc.).

Countdown

The countdown feature allows you to set a timer. By using the corresponding buttons, the countdown can be started, paused, resumed, and reset. When time is up, you receive a notification, according to your settings: a sound alarm, a vibration, and / or a message on the notification bar (if the app is running in background). The "Set Timer" button placed on the action bar allows you to rapidly set the timer. In landscape mode, in addition to the time display, you can see the date and time when the countdown will finish.

## Chronometer Pro

Chronometer is a reliable, easy to use time measuring app. Its features include a stopwatch and a countdown timer. The app will continue the time measurement in background if minimized.

Stopwatch

The stopwatch feature allows you to measure elapsed times. By using the corresponding buttons, the stopwatch can be started, paused, resumed, and reset. By pressing the "Lap" button you can record the current time. In landscape mode, in addition to the elapsed time, you can see the number of laps, the last lap time and the current lap time.

Times

As you record laps with the stopwatch, they are added to a list in the "Times" view. The laps are ordered in descending order. For each lap in the list, you can see the lap number, the elapsed time, and the lap time. The elapsed time is the time past from the beginning of the measurement up to the moment when the lap was added. The lap time is the time past since the previous lap was added. At the bottom of the screen, you can see the average of your lap times. The "Save" button placed on the action bar allows you to share your list of lap times by sending it to one of the appropriate apps installed in your device (Gmail, Dropbox, Drive, Facebook, etc.).

Countdown

The countdown feature allows you to set a to timer. By using the corresponding buttons, the countdown can be started, paused, resumed, and reset. When time is up, you receive a notification, according to your settings: a sound alarm, a vibration, and / or a message on the notification bar (if the app is running in background). The "Set Timer" button placed on the action bar allows you to rapidly set the timer. In landscape mode, in addition to the time display, you can see the date and time when the countdown will finish.

## Battery Charge Timer

Battery Charge Timer allows you to evaluate the time required to charge your rechargeable batteries, depending on the battery capacity, the charging current and the energy loss. If you want to be alerted when it's time to disconnect the charger, you can set a timer to notify you. If you want to make the most of your rechargeable batteries, this app is for you!