RealMax Scientific Calculator

Contains ads
4.3
18.1K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
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About this app

RealMax Scientific Calculator - Advanced Calculator for Students & Engineers

The most powerful scientific calculator app for Android. Trusted by 1 million+ users worldwide for academic, engineering, and professional calculations.

Whether you're a high school student, university engineer, or working professional - RealMax gives you the precision and power of a physical fx-991 series calculator, right on your phone.

KEY FEATURES

SCIENTIFIC CALCULATIONS
- Full trigonometric and hyperbolic functions
- Logarithmic and exponential calculations
- Complex number support
- Fraction calculator with ab/c input
- Degree, Radian, and Gradian modes

GRAPHING AND EQUATIONS
- Graph plotting and visual graphing calculator
- Solve linear and polynomial equations
- Matrix operations including add, multiply, and invert

ENGINEERING TOOLS
- Base-N support for HEX, DEC, OCT, BIN
- Unit conversions for scientific and engineering
- 40+ predefined scientific constants
- DMS (Degree, Minute, Second) calculations
- 10 user-defined variable slots

SMART FEATURES
- History to review last 100 calculations
- Samsung Multi-Window multitasking support
- Clean and intuitive Casio-style interface

PERFECT FOR
- High school and university students
- Engineers and scientists
- Math and physics professionals
- Anyone needing a reliable scientific calculator

WHAT USERS SAY
"Very similar in layout to the Casio Scientific calculators" - 5 stars
"The best calculator app I have used so far" - 5 stars

Want an ad-free experience? Search 'RealMax Scientific Calculator Pro' on the Play Store to upgrade!

Support: realmaxsoftlk@gmail.com
Website: www.realmaxsoft.com

We constantly improve based on your feedback. Please rate us if you enjoy the app!
Updated on
Feb 17, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
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Ratings and reviews

4.3
17.6K reviews
Paul Rhodes
May 21, 2020
Very nice to use, and very similar in layout to the Casio Scientific calculators from 1980 to 2010, but with the addition of 5 or 6 extra independent memories, and an undo key! A big improvement on so many of the orher "micky mouse" calculator apps available. Adverts do pop up occasionally after pressing the equals key, but they can be swiftly dismissed by pressing the back key.
165 people found this review helpful
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A Google user
April 14, 2020
it's a good calculator. I had uninstalled it because of the fullscreen ads in the middle of calculations. I just learned from the developers that these ads are only three times per day and I think I can live with that.. I really like the style (calculation on the top - result at the bottom). I just reinstalled it!
7 people found this review helpful
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RealMax LK
April 14, 2020
App only shows maximum of 3 ads per day. You will not see more than 3 ads per day.
A Google user
November 14, 2019
The best calculator app I have used so far. But in the recent update there's a problem. While pressing and holding the 'DEL' key to delete multiple digits, the settings menu pops up. Settings menu should only appear while pressing SHIFT+ DEL keys. Anyway still 5 stars for this highly functional calculator.
1 person found this review helpful
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What’s new

History support up to 100 and miner bug fixes.