Live conversion
Type a number and see the result instantly. No convert button, no loading. The swap button flips direction in one tap so you never have to re-enter values.
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Now Available on the App Store
UnitFlip
An ad-free unit converter for iOS with live conversion, all 13 categories free, bundled currency rates, and a one-time Pro upgrade for live currency sync and unlimited favorites.
Live conversion13 free categoriesLifetime Pro unlock
Product details
UnitFlip is a fast, clean unit converter built for speed. Two input fields, live conversion as you type, a swap button to flip direction, and category tabs to jump between measurement types. The app is fully ad-free with no tracking or advertising SDKs. All 13 conversion categories are free for everyone, while Pro adds live daily currency sync from Frankfurter, on-demand refresh, and unlimited favorites with one lifetime purchase.
Inside the app
Swipe or use arrow keys · 3 screens
Convert length, weight, volume, and more as you type.
Switch to currency for up-to-date exchange rates.
Free forever. One lifetime Pro unlock, no subscription.
13 categories
Length, area, weight, volume, temperature, speed, digital storage, time, cooking, currency, fuel economy, pressure, and angle are all free. Pro adds live daily currency rate sync with on-demand refresh.
Favorites
Star your most-used conversion pairs for instant access. Tap a favorite to jump straight into converting. Free tier includes 3 favorites; Pro unlocks unlimited.
No subscription
The app is fully ad-free with no tracking. Pro is a one-time lifetime purchase that unlocks live daily currency sync with on-demand refresh and unlimited favorites.
Available now on the App Store.
UnitFlip is available on the App Store. A utility-first converter with local favorites, cached rates, and optional Pro features.
UnitFlip stores favorites, preferences, and cached rates locally on your device using SwiftData. There are no accounts or cloud sync, and conversion inputs are not sent to our server for processing.
UnitFlip is fully ad-free with no tracking and no third-party dependencies. Pro is a one-time lifetime purchase that unlocks power features.