Best overall
CALCU
Candl Apps
Everyday sums with a clean keypad and a history you can scroll. Themes stay out of the way of the maths.
Checked 17 Oct 2026—
Calculator
Replace your Calculator. Start with these.
As of 17 Oct 2026, 55 apps can replace the Calculator on Android. These 8 are where we'd start.
The top 3
Best for science
HiPER Scientific Calculator
HiPER Development Studio
A scientific calculator with fractions, graphs and a huge function list, without leaving the keypad.
Checked 17 Oct 2026—
Best for graphs
The graphing calculator students already know. Plot, slide and see the maths move.
Checked 17 Oct 2026—
Also great. Five more.
Picked by hand, 17 Oct 2026Write a sum by hand and watch it turn into typed maths
Google Play
A calculator for units, conversions and serious maths
F-Droid
A converter that also does everyday calculator work
F-Droid
A simple calculator with a clean keypad and a history
F-Droid
A calculator drawn in Material 3
F-DroidSee all 55 appsShow the top 8 only
23 apps · sorted by name
| App ▲ | What it does | Price | Updated ▼ | Min Android ▼ | Get it |
|---|---|---|---|---|---|
AlexCalcAlex Barry |
Scientific calculator with LaTeX equation display, buttons and plaintext input | Free | 2 Jun 2026 | Android 6.0+ | F-Droid |
ArityCalcwoheller69 |
Scientific calculator for Android 5+ | Free | 2 Oct 2026 | Android 5.0+ | F-Droid |
Calculator M3Top 8Gergely Vagujhelyi |
A calculator drawn in Material 3 | Free | 1 Jul 2026 | Android 8.0+ | F-Droid |
CalcYouYou Apps |
Privacy Focused Calculator app built with MD3 | Free | 28 Jul 2026 | Android 6.0+ | F-Droid |
Compound CalculatorSam Yu |
Simple offline compound interest calculator | Free | 3 Jun 2026 | Android 6.0+ | F-Droid |
DayCalcyVeevek |
Simple ofline date calculator with reminder | Free | 15 Oct 2026 | Android 7.0+ | F-Droid |
DriveSoberlyJohan Py |
Alcohol blood rate computer for driving | Free | 13 Jun 2026 | Android 5.0+ | F-Droid |
DumberKitlbockaj |
Calculator and unit converter for keypad phones, typed on the keypad | Free | 14 Oct 2026 | Android 8.0+ | F-Droid |
Fossify Calculator BetaFossify |
Simple and calculator for quick and easy calculations | Free | 2 Feb 2026 | Android 8.0+ | F-Droid |
Graph 89Everet Anema |
A TI Graphing Calculator Emulator | Free | 9 Jan 2026 | Android 4.4+ | F-Droid |
Inflation Calculatorcorenting |
Inflation calculator for various countries | Free | 22 Feb 2026 | Android 6.0+ | F-Droid |
liftmathMunzzyy |
Gym calculator: 1RM, plates, warm-ups, strength scores, records, rest timer | Free | 4 Oct 2026 | Android 7.0+ | F-Droid |
LoanProMichael Kaltner |
Fast mortgage, auto, credit, and personal loan calculations | Free | 25 Jun 2026 | Android 5.0+ | F-Droid |
microMathematics Plus |
Computer algebra system | Free | 1 Mar 2026 | Android 4.0+ | F-Droid |
NerdCalciVishal Telangre |
Calculator for nerds with variables, syntax highlighting, and file sessions | Free | 14 Oct 2026 | Android 6.0+ | F-Droid |
Numio Calculatorrag-creation |
A clean, calculator with live results and unit conversion | Free | 12 Oct 2026 | Android 7.0+ | F-Droid |
PariDroid |
PARI/GP is a computer algebra system designed for computations in number theory | Free | 18 Feb 2026 | Android 4.4+ | F-Droid |
Qalculate!Top 8Hanna Knutsson |
A calculator for units, conversions and serious maths | Free | 28 Sept 2026 | Android 8.0+ | F-Droid |
SchulrechnerJoris Yidong Scholl |
The calculator you know from school | Free | 9 Jun 2026 | Android 7.0+ | F-Droid |
SoulCalcAlbert Zenkoff |
Notepad-style calculator with variables, line references, multi-line support | Free | 31 Jul 2026 | Android 7.0+ | F-Droid |
Tirailleur |
A practical ballistic calculator for precision rifle shooting | Free | 13 May 2026 | Android 7.0+ | F-Droid |
UnittoTop 8sadellie |
A converter that also does everyday calculator work | Free | 25 Mar 2026 | Android 6.0+ | F-Droid |
Vanillasosauce |
A cute and elegant calculator app for Android | Free | 14 Oct 2026 | Android 7.0+ | F-Droid |
'Top 8' marks the apps above. Data from F-Droid and hand-checked entries, as of 17 Oct 2026.
How we pick the top 8: a person tries the apps and checks each maker's page, then writes the labels down with a date. How we choose