Calcora — A calculator for everything

Calcora

Free on iPhone, iPad and Android

A calculator for everything, by Pingee Nexgen.

61 calculators, a scientific keypad and a running tape — in one app that asks for no account and keeps everything on your phone.

61calculators

8languages

0accounts

A calculator that keeps up with you

The keypad Exact arithmetic, a scientific pad, memory, and a tape that remembers every line so you can go back and change one.

Everything else Percentages, tips, discounts, tax, loans, unit and currency conversion, dates, time zones, health, geometry — the sums that come up.

Templates and shortcuts Save a calculation you repeat, name its inputs, and run it again from the Home screen without setting it up twice.

Reminders A calculation that matters on a date — a payment, a renewal — can tell you about itself when the day comes.

Yours, and nobody else’s

No account Nothing to sign up for. The app opens and works.

Nothing leaves your device Calculations, history, templates and reminders are stored on the phone and read by nothing else.

Eight languages, and both directions English, Spanish, Portuguese, French, German, Arabic, Hindi and Chinese, with the layout mirrored where it should be.

Built to be read Every palette meets the contrast standard, every control has a name a screen reader can say, and the type scales with the system.

Pro

Calcora is free to use. Pro removes the advertising, lifts the limits on the specialist calculators and unlocks every theme — monthly, yearly, or bought once. It is handled by the App Store or Google Play; we never see your card or your name.

The paperwork

The privacy policy sets out what the app does with your information, which is very nearly nothing. The terms of use set out what you can expect from it and what it expects of you.

Anything else

Write to calcoraapp@gmail.com, or use the contact page. A bug report with the version number in it is worth a great deal.