15 free offline tools for home improvement and repair—from a spirit level to a metal detector. Install it once and use it forever, even without internet.
The metal detector finds rebar, pipes, and wiring in walls directly through your phone's sensor. A dial indicator, audible signal, and vibration will show you where the metal is.
🔦 LIGHT AND NAVIGATION
• Flashlight with camera flash — continuous light, strobe light, and Morse code SOS signal
• Compass shows magnetic north and GPS coordinates — navigate without internet
• Sun and Moon — sunrise and sunset times, moon phase, golden hour for photographers
📐 PRECISE MEASUREMENTS
• Level determines surface tilt with an accuracy of 0.1°
• Ruler — measure directly with the screen, calibrate with a bank card or coin
• Protractor — tilt angle with zeroing for relative measurements
• Rangefinder — distance to an object through the camera, also calculates altitude
• Altimeter — your altitude above sea level using GPS
🔍 USEFUL UTILITIES
• Magnifier — magnify up to 6× through the camera with filters and backlight for small text
• Sound level meter — sound level in decibels with a graph and statistics
• Converter — length, weight, temperature, area, volume, speed, data (40+ units)
• Stopwatch and timer with laps and vibration upon completion
🔢 CALCULATORS — 5 IN ONE
• Standard — addition, subtraction, multiplication, division, percentages
• Engineering — sin, cos, tan, logarithms, powers, roots, parentheses
• Construction — wall area, concrete volume, paint consumption, bricks, wallpaper, tiles, double-glazed windows
• Geodetic — plot area by sides, slope in ppm, arc length
• Electrical — Ohm's law, power, cable cross-section
📝 EVERYTHING IS SAVED
• Each measurement and calculation is saved in a notebook with the date and time stamp
🚫 DON'T LIKE THE AD?
Ads appear only when switching between tools (once every 5 switches). Watch a short video and the ads are disabled for 1 hour. Free, no purchases.
✈️ WORKS OFFLINE
All 15 tools work completely offline. The app is about 12 MB in size and doesn't consume data or battery. Take it to a construction site, on a hike, or on a trip.
👷 FOR WHOM
• Craftsmen and builders — level, ruler, rangefinder, metal detector for finding rebar
• Travelers — compass, flashlight with SOS, altimeter, solar tracker
• Anyone tired of 15 separate ad-supported apps — here's everything in one, free
Install MultiTool — all your free offline tools in one app.
Contact us: info@rodrik.dev
Our website: https://rodrik.dev/