On the App Store
UnitFlip
An iPhone unit converter with 13 categories, live results, and a one-time $2.99 Pro upgrade for live currency rates and unlimited favorites.

Inside the app
What it does
- Convert instantly
- Type a number and see the result immediately. Swap direction in one tap without re-entering the value.
- Favorites on device
- Save conversion pairs you reuse. Unlimited favorites unlock with Pro; pairs stay on your device.
- 13 included categories
- Length, area, weight, volume, temperature, speed, digital storage, time, cooking, currency, fuel economy, pressure, and angle are all included.
- One-time Pro
- Pro is a one-time $2.99 purchase for live currency refresh and unlimited favorites. No subscription, ad, account, or tracking follows.
About UnitFlip
Product details
UnitFlip converts units as you type. Length, area, weight, volume, temperature, speed, digital storage, time, cooking, currency, fuel economy, pressure, and angle are included. The app shows no ads, performs no tracking, and stores favorites and rates on your device. Pro is a one-time $2.99 purchase that unlocks live currency refresh and unlimited favorites. There is no subscription.
Available now on the App Store.
UnitFlip is on the App Store with every conversion category included. Pro is a one-time $2.99 purchase for live currency rates and unlimited favorites.
UnitFlip stores favorites, preferences, and cached rates locally on your device. There are no accounts or cloud sync, and conversion inputs are not sent to our server for processing.
UnitFlip Pro is a one-time $2.99 purchase on the US App Store for live currency rates and unlimited favorites. There is no subscription, advertising, or tracking SDK.
Questions about UnitFlip
How does the converter work?
Open Convert, choose a category and units, then type a number. The result appears instantly. Swap direction in one tap.
What does Pro include?
Pro is a one-time $2.99 purchase on the US App Store. It unlocks live currency refresh and unlimited favorites. Pricing may vary by region. There is no subscription.
How do I restore Pro?
Open Settings and tap Restore Purchases. UnitFlip uses Apple's StoreKit restore flow.
What categories and units are included?
UnitFlip includes length, area, weight, volume, temperature, speed, digital storage, time, cooking, currency, fuel economy, pressure, and angle, with more than 80 individual units. Every category is included.
Does UnitFlip collect my data?
UnitFlip stores favorites, preferences, and cached rates locally on your device. There are no accounts, no cloud sync, no ads, and no tracking. Conversion inputs are never sent to our server. If you choose to send a bug report, the support service receives your message, optional email, and a one-way IP hash used for rate limiting.
How do currency rates work?
UnitFlip ships with bundled rates for offline use. Pro can refresh supported rates from Frankfurter. The latest successful result is cached on your device. Exchange rates are informational and may not reflect a real-time market quote.