Calculator Ultra: Smart Math

Fast, elegant calculations with large keys, history, conversions, date tools, widgets, and four polished offline themes.

Calculator Ultra is a fast, accessible calculator designed for everyday use.

CALCULATE WITH CONFIDENCE • Large, easy-to-tap keys • Live expression and result display • Memory functions, percentages, sign changes, and scientific tools • Calculation history with notes

MORE THAN A CALCULATOR • Convert units and currencies • Calculate durations and date differences • Use the interactive Home Screen widget • Work in portrait or a dedicated landscape layout • Everyday calculations work offline; currency rates refresh online when available

MAKE IT YOURS • Four polished themes stored on your device • Midnight, Graphite, Porcelain, and Forest styles • Consistent colors throughout the interface

BUILT FOR EVERYONE • English is the default language • Supports Thai, Spanish, French, German, Japanese, Korean, Simplified Chinese, and Arabic • VoiceOver-friendly labels and right-to-left layout support

No account or sign-in is required.