JetSetKit is a currency, size, and unit converter for travelers. It works entirely on your device — no account, no sign-in.
Email: jetsetkit.service@gmail.com. We typically reply within 2 business days.
Where do the exchange rates come from?
Daily reference rates published by the European Central Bank, downloaded from the Frankfurter API (frankfurter.dev). Rates refresh when you open the app or pull to refresh.
Does the app work offline?
Yes. The most recent rates are cached on your device, and size tables and unit conversions are fully local. The app shows the date of the rates it is using.
How do I pin a currency?
Swipe left on any currency row and tap Pin. Pinned currencies appear at the top of the list.
How do I save my clothing or shoe size?
On the Sizes tab, swipe left on your size row and tap My Size. It will be highlighted whenever you open that category.
Is my data private?
The app collects no personal data — see our Privacy Policy.