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 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—

Get it on Google PlayDetails

Also great. Five more.

Picked by hand, 17 Oct 2026
See all 55 appsShow the top 8 only
AllFreeUpdated this year
23 apps · sorted by name
All 23 apps
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