Omni Calc

Omni Calc brings a scientific calculator, a converter for nine unit families and four everyday finance tools into one quiet, paper-toned app. Big readable numbers and large tactile keys make quick sums and long expressions equally comfortable.

Convert between more than 100 units, including 30 currencies from a built-in reference table that you can adjust to match your bank. Work out a loan or mortgage payment, split a bill with tip, check your BMI or estimate fuel costs in a few taps.

Every calculation goes into a searchable history. You can star an entry, add a note to it, reuse it in the calculator or delete it, and the Home screen turns your history into a small personal summary. The app has light and dark themes, needs no account, shows no ads and works fully offline.