TechCalc Scientific Calculator

🇺🇸 United States
roaming squirrel  | 
36
ASO score
Text
33/100
Reviews
60/100
Graphic
40/100
Other
0/100
rating
App Rating
4.6
rating
Votes
4.48M
rating
App Age
15y 1m
rating
Last Update
Nov 28, 2025

Compare with Category Top Apps

Metrics
Current App
Category Top Average
Difference
Installs
4.8M
480M
-99%
Rating
4.71
4.47
+5%
Number of Ratings (Voted)
3.4M
235.4M
-99%
App Age
15y 0m
6y 8m
+124%
In-app Purchases Price
$0
$87
Update Frequency
120d
194d
-38%
Title Length
30
24
+25%
Short Description Length
79
71
+11%
Description Length
3 838
3 120
+23%
Number of Screenshots
704
1288
-45 %
Has Video?
No
0% has videos
Size
0MB
0MB

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Top Dec 20, 2025 Dec 27, 2025
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Top Dec 20, 2025 Dec 27, 2025
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Downloads

Downloads Graph
Downloads icon
Total
4.8M
Last month icon
Last month
778

Text ASO

Title (
Characters: 30 of 50
)
TechCalc Scientific Calculator
Short Description (
Characters: 79 of 80
)
Scientific calculator with graphs, equations, calculus, formulas, finance, etc.
Description (
Characters: 3838 of 4000
)
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}
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Rating & Reviews

Reviews Overview
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Rating
4.6
4 476 873 voters

Some Latest Reviews

Nitin Kumar Jain
19 Dec, 2025
1
binary/ hex converter is not working after last update
Brian Biby
12 Dec, 2025
5
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!!!
Rae Cooke
06 Dec, 2025
1
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.
алкоголь и табак-наркотики
01 Oct, 2025
1
когда я делю 1\44100 я ожидаю 22.676×10^-6 и мне сразу понятно это 22 микросекунды, микрофарады микрометры Но почему калькулятор показывает 2,2676×10^-5? при этом не настраивается, у меня есть калькулятор которому 20 лет и в нём регулируется это . последней версии стал какой-то заторможенный на отклик нажатий, ко всему прочему Не копируются результаты, вместо этого появляется какой-то режим редактирования абсолютно бесполезный вместо знака деления /какой-то знак напоминающий + издалека
Ricardo Gallegos
29 Aug, 2025
5
Para mi, la mejor, aun entre las de paga. Los anuncios no son invasivos y tiene una gran cantidad de funcionalidades y calculadoras especiales, además de tablas y formularios Ideal para estudiantes, ingenieros y científicos.
KOUAKOU GERARD KOUAKOU
28 Aug, 2025
5
Très bonne application. je vous sollicite massivement pour télécharger cette application.
Don Costello
14 Aug, 2025
4
The Best!Fără rival.Utilizat din 2017!Din păcate este o versiune cu anunțuri și nu există plan cu plată lifetime.
Robert Raymond
09 Aug, 2025
5
Formidable ! Je l'ai utilisé depuis plus de 10 ans.❤❤❤
Greg Braun
14 May, 2025
5
This calculator app is one of the best calculator apps I have found. It does everything.

Other

Additional Information
Rating:
4.64
Voted: 4.48M
Google Play Link:
Website:
Email:
Privacy Policy:
Categories: Productivity
Size: -
Installs: 4.77M
App Age: 15 years 1 month
Release Date: Dec 03, 2010
Last Update: Nov 28, 2025
Version: 5.2.5
Version history
5.2.5
Nov 28, 2025
ver 5.2.5:<br>★ Statistics Functions: added Gumbel Distribution and Fréchet Distribution<br>★ minor bug fixes and library updates
5.2.4
Aug 14, 2025
ver 5.2.4:<br>★ Conversion Factors (Exchange Rates): expanded the list of currencies (SLE, XCG, ZWG)<br>★ minor bug fixes and library updates
Version history