CalcMate
by SempaQ
All-in-One Calculator
100+ tools.
One app.
Finance, math, unit and currency conversion, and health calculators in one free Android app. Works offline, no account.
Everything you calculate, in one place.
Finance
30 tools: loans, mortgage, EMI, compound interest, retirement, VAT, tip splitter, zakat and more.
Math
26 tools: fractions, statistics, matrices, quadratic, geometry, number bases and more.
Convert
Unit converter with 17 categories, plus a currency converter for 25 currencies.
Health
BMI, BMR, body fat, macros, water intake, heart rate zones and more.
Tools
35 handy tools: scientific calculator, date and timezone, color converter, GPA, stopwatch and more.
Home with live rates and My Tools
Loan calculator
Unit Converter, 17 categories
Currency, 25 currencies
BMI calculator
Share a result as an imageUnit Converter
17 categories, with translated unit names
Live currency rates
25 currencies, last rates saved for offline use
Finance tools
Loan, mortgage, investment, VAT, tip split and more
Math & Scientific
Inverse trig, hyperbolic, factorial, statistics, geometry
Health
BMI, BMR, heart rate zones, water intake and more
Share results
Share a calculation as a clean image card
History
Save and review your calculations
My Tools
Pin your favorite tools to the home screen
Dark mode
Light and dark themes
7 languages
English, Indonesian, Spanish, French, Portuguese, Arabic, German
Offline
No account and no connection needed to calculate
Local number format
Numbers and dates follow your selected language
Pay once.
Calculate without ads.
$1.99 · one-time · no subscription
- Removes the banner ads
- One purchase, no subscription
- Restore it any time from Settings
- All tools stay free either way
Is CalcMate free?
Yes, CalcMate is free to download and use. It shows a banner ad, which a one-time Remove Ads purchase ($1.99) takes away. There is no subscription.
Does CalcMate work offline?
Yes. All calculators and the unit converter work without an internet connection, and no account is needed. Only live currency rates need a connection; the last rates are saved on your device and used when you are offline.
Where do the currency rates come from?
Rates come from ExchangeRate-API for 25 currencies. They are fetched when you open the currency tools or refresh them, and the last successful rates are saved on your device. If you are offline, the app shows the saved rates and tells you how old they are.
How many tools does CalcMate have?
More than 100: finance, math (including a scientific calculator), health, a unit converter with 17 categories plus currency, and utility tools such as date, timezone and color converters.
What languages does CalcMate support?
English, Indonesian, Spanish, French, Portuguese, Arabic (right-to-left) and German. It follows your device language, or you can choose one in Settings.
What data does CalcMate collect?
SempaQ collects no personal data and there are no accounts. Calculations, history and favorites stay on your device. Ads are served by Google AdMob, which may use device identifiers, and a consent prompt is shown where required (EEA/UK). See the privacy policy for details.
Is CalcMate available on iOS?
Currently CalcMate is available on Android only.
Version 1.2.3 · October 2026
- Theme setting: Light, Dark or System; the splash screen follows it.
- In-app notice when an update is ready, plus a short "What's new".
- Better layout on tablets, foldables and in landscape; Scientific uses two columns.
- Share cards show your inputs in your number format.
- Loan and mortgage bars labeled Principal / Interest.
- Tap anywhere on a setting row to toggle it.
- Smaller fixes and polish.
Version 1.2.2 · October 2026
- Numbers and dates follow the selected language, including decimal commas where that language uses them. Arabic uses 0-9 digits and the Gregorian calendar.
- Unit names in the Converter are translated.
- Changing the system language now applies immediately.
- Scientific calculator closes open parentheses automatically when you press =.
- Recent conversions in the Converter can be cleared.
- Other small fixes.
Version 1.2.0 · October 2026
- German added (7 languages in total).
- Black app icon.
- Remove Ads purchase option.
- Consent form for ads in the EEA and UK.