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Android Apps > Tools > TechCalc Scientific Calculator
TechCalc Scientific Calculator icon

TechCalc Scientific Calculator

by Roaming Squirrel Software · Tools · Free
On Google Play since December 2010 · Data updated 2026-10-24

TechCalc Scientific Calculator is made and published by Roaming Squirrel Software. AppBrain is an independent app data site and isn't affiliated with Roaming Squirrel Software. The app name, icon, screenshots and description belong to Roaming Squirrel Software and are shown as published on Google Play.

AppBrain's verdict

EstablishedPopularLoved by users
Rating on Google Play
4.60
37,733 ratings
Installs
4.8 million
Last updated
August 18, 2026
Ads
Contains ads
Size
13.7 MB

TechCalc Scientific Calculator is popular, with 4.8 million installs. Users love it: 4.6 stars from 37,733 ratings.

Official page on Google Play

User feedback

Ratings and reviews on Google Play

Comments on TechCalc Scientific Calculator for Android

★★★★★ Francois vzb · Dec 20, 2022
As an engineer and a scientist, this is the most amazing calculator app that I have ever seen or used; and it is all free of charge, with even an easy and free way to remove adds. This calculator is a transformer, that you can morph at will into a variety of many top-notch different specialized calculators, scientific, programmer's, financial, etc. with an embedded reference base of data, constants, formulas etc. in areas as diverse as e.g. mathematics, physics, chemistry, astronomy and finance.
★★★★☆ Birendra Prasad Bhagat · Jul 16, 2022
I'm using this calculator very often.... Very nicely design. But if app has option to use USER DEFINED CONSTANTS or VARIABLES in QUICK FORMULA then it is more useful and user-friendly. Hope to see such implementation in the future.
★★★★★ Brian Biby · Dec 12, 2025
I am an engineer and have used this calculator for years. I have tried others but come back to this one every time as its look, feel, and great extra features make it just #1!!!
★☆☆☆☆ David Judge · Apr 25, 2026
I want a scientific calculator but not always scientific notation displayed
★☆☆☆☆ Rae Cooke · Dec 6, 2025
I paid for this app as I rated it the best calculator for my requirements. Unfortunately after losing my phone and subsequent purchase of a new one, I lost the paid version of the app. As I no longer used the app as frequently I settled for using the free version. I was happy to put up with the ads as they were not too intrusive until now when they have started displaying pornographic images across the top of the screen. This is the second app that I have removed recently for the same issue.
★☆☆☆☆ Nitin Kumar Jain · Dec 19, 2025
Binary/ hex converter is not working after last update

Google Play Rating history and histogram

30K
4.9K
750
380
1.9K

Store listing

By Roaming Squirrel Software, from Google Play

“Scientific calculator with graphs, equations, calculus, formulas, finance, etc.”

TechCalc Scientific Calculator Screenshot 1 of 9
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TechCalc Scientific Calculator Screenshot 9 of 9
Screenshots by Roaming Squirrel Software, from the Google Play listing
Description by Roaming Squirrel Software Written by the developer, not by AppBrain. Click to read.
TechCalc is the "Swiss Army Knife" of Scientific Calculators ... 44 Calculation Options + a Scientific Reference Section + the Periodic Table of the Elements!

Perfect for all aspects of scientific and engineering calculations in school, university and throughout your career. Why not download it now and give it a try?

Modes included in the main menu are:

● Basic Calculator - Algebraic and Reverse Polish Notation (RPN),
● Scientific Calculator - Algebraic and Reverse Polish Notation (RPN),
● 64-bit Programmer Calculator (Hex, Oct, Bin and Dec) - Algebraic and Reverse Polish Notation (RPN),
● Graphs (Functions, Implicit Equations, Parametric Equations, XY Scatter Plot and 3D Surface Plot),
● Matrices - including Inverse, Transpose, Determinant, Cofactor, Adjugate, Trace, Rank, Eigenvalues, Eigenvectors, Decompositions (LU, Cholesky, QR, Singular Value),
● Complex Numbers (Cartesian, Polar, using Euler's identity),
● Quick Formulas (includes 58 classic scientific formulas plus the ability to add your own custom formulas),
● Quick Converter,
● Time Calculator,
● Equation Solver (Linear Equations, Roots of a Polynomial Equation, Exponents of an Exponential Equation, Inequations, Factorization of Polynomials, GCD of 2 Polynomials, LCM of 2 Polynomials, Binomial Expansion & Vector Arithmetic),
● Calculus - including Symbolic Algebra (Derivatives, Definite Integrals, Taylor Series, Indefinite Integrals & Limits)
● Financial (Simple Interest; Compound Interest; Cash Flow; Amortization; Growing Annuity; Cost, Sales, Margin & Markup; Break-Even; Depreciation; Bonds; Days Calculation; Interest Conversion; Options Trading - Greeks)

+ the Periodic Table of Elements!

Features include:

● All Trigonometric operations (radians, degrees or gradients)
● Powers & Roots
● Logs and Antilogs
● Factorial, Modulus & Random Numbers Functions
● HCF, LCM, Prime Factors
● Pol() & Rec() Functions
● Permutations (nPr) and Combinations (nCr)
● Statistics (30 different functions!)
● Conversions (35 different categories!)
● Physical and Astronomical Constants (52 in total!)
● Fractions Mode
● 20 Memory Registers in each of the calculation modes
● Detailed calculation history
● Extensive Help and Reference
● Highly customizable via the Settings

The reference section includes the following calculators and converters (any, or all, of which can be moved to the main menu if required):

● ASCII Converter
● Aspect Ratio Calculator
● Balancing Chemical Equations
● Barometric Formula Calculator
● Bicycle Tire Pressure Calculator
● Body Mass Index (BMI) Calculator
● Boolean Algebra Calculator
● Characteristics of an RLC Circuit
● Color Calculator
● Coordinates Converter
● Empirical Formula Calculator
● Ephemerides Calculator
● Feet and Inches Calculator
● Fractional Bits Converter
● Geodetic Distance Calculator
● Humidity Calculations
● IEEE 754 Converter
● Interpolation Calculator
● IP Subnet Calculator
● Linear Regression Analysis
● Molecular Weight Calculator
● Number Base Converter
● Numerical Sequences
● Percentage Calculator
● pH Calculator
● Polygon Area Calculator
● Proportion Calculator
● Roman Numeral Converter
● Sigma and Pi Notation
● Statistics (Grouped Data)
● Unit Price Comparison
● Wind Chill Calculator

The reference section also includes the following information:

● Physical Laws
● Mathematical Tables
● Elementary & Linear Algebra
● Trigonometric Identities
● Differentiation & Integration Rules
● Statistics Formulas
● Vector Mathematics
● Names in the Metric System
● Cooking Temperature Scales
● Beaufort Wind Scale

Please email any questions that are not answered in the Help section.

This is also an ad-supported app - upgrade to an ad-free version via: https://play.google.com/store/apps/details?id=com.roamingsquirrel.android.calculator_plus

Recent changes:
ver 5.2.9:
★ minor bug fixes and library updates
Official page on Google Play

Safety and technology

Found in the app by AppBrain
Ads
Contains ads
Price
Free
Libraries
17
App size
13.7 MB
Content rating
Everyone

Technologies used by TechCalc Scientific Calculator

15 permissions · 17 libraries
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
5.2.9
Launched
December 2010
  • Aug 18, 2026UpdateVersion 5.2.9
  • May 31, 2026UpdateVersion 5.2.8
  • May 3, 2026UpdateVersion 5.2.7
  • Dec 17, 2025UpdateVersion 5.2.6
  • Nov 27, 2025UpdateVersion 5.2.5
Show all changes Show fewer

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Installs

Tracked by AppBrain
Last 30 days
9
Play install range
1+ million
Launched
December 2010

Installs over time

TechCalc Scientific Calculator has been installed 4.8 million times. Over the past 30 days, it has been installed 9 times.

Rankings

Google Play top charts

Google Play Rankings for TechCalc Scientific Calculator

This app is not ranked

About the app and developer

About TechCalc Scientific Calculator

TechCalc Scientific Calculator is a tools app developed by Roaming Squirrel Software.

Install Statistics

TechCalc Scientific Calculator has been downloaded 4.8 million times. In the last 30 days, the app was downloaded 9 times.

User Ratings

TechCalc Scientific Calculator is rated 4.60 out of 5 stars. The rating is based on 38 thousand ratings.

App Information

TechCalc Scientific Calculator is freely available from Google Play. The APK size is 13.69 MB. The latest APK version available is 5.2.9. The last update was on August 18, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play since December 2010.

App Performance Report

Get a detailed PDF report for TechCalc Scientific Calculator with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

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Developer information for Roaming Squirrel Software

Roaming Squirrel Software

admin@roamingsquirrel.com

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