Callie 2.0 Is Live on iOS and Android

The first major Callie update is here. Callie has grown past 2,000 users, with more people finding it every day. Version 2.0 is the first major update: a cleaner dark glass interface, a more intuitive workspace, smoother movement between tools, a new Currency Converter, and expanded support for 32 languages.

Callie is an all-in-one calculator and utility workspace for iPhone, iPad, Android phones, and Android tablets. Use one calm app for quick calculations, scientific mode, tips, bill splitting, currency conversion, unit conversion, percentages, date math, and practical money tools.

A Cleaner Calculator Workspace

Callie 2.0 includes Basic and Scientific calculator modes in one calm calculator workspace, so the app stays useful for quick totals, deeper checks, schoolwork, work, and everyday number problems.

Currency Converter with Fresh Daily Rates

Callie 2.0 includes a clean Currency Converter with fresh daily Frankfurter exchange-rate data, searchable currencies, common shortcuts, swap, favorites, recents, and cached rates after your first successful update.

Money, Conversion, and Date Tools in One App

Callie keeps practical money math in one calm workspace: tips, bill splitting, sales tax, discounts, unit price, fuel cost, loan payment, and currency conversion. Unit conversion, Percentage Helper, Date Calculator, and Age Difference stay close to the rest of your everyday math.

Now Supporting 32 Languages

Callie 2.0 supports 32 languages because everyday math should not feel locked to one country, one language, or one type of user.

The goal is still simple: one calm place for the everyday math that shows up in real life.