UnitZen

UnitZenX is a clean, fast unit converter designed to get out of your way.

10 categories. 80+ units. Zero internet required.

Convert between units of length, weight, temperature, area, volume, speed, time, data storage, currency, and fuel economy — all from one app.

Type in either field and the result updates instantly. Tap any unit badge to switch units from a searchable list. Swap directions with one tap. Every conversion is saved to your history automatically.

Save the conversions you use most as favorites for one-tap access. Your favorites and history are stored only on your device — nothing is uploaded, tracked, or shared.

The app follows your system theme, or you can choose light or dark mode from settings.

What UnitZenX does not do: no ads, no account required, no internet permission, no tracking, no background processes.

Built for people who just want to convert a unit and move on.