Offline Currency Converter

Offline Currency Converter

is a free and open-source currency converter for Android. Convert between 160+ currencies using the latest downloaded exchange rates — even when you are offline.

Ideal for travel, shopping, international payments, or anyone who needs a simple currency calculator without relying on a permanent internet connection.

Offline currency conversion

Download exchange rates and perform currency conversions directly on your device. Once rates are synchronized, conversions work completely offline.

Exchange rates

Rates are provided by the Frankfurter API using European Central Bank reference data. Choose how often rates are synchronized, from every 6 hours to weekly, or update them manually.

Features

Currency converter — convert between 160+ currencies

Offline mode — convert currencies without an internet connection after syncing

Exchange rates — use European Central Bank reference rates

Favorites — quickly access your most-used currencies

Multi-currency conversion — compare several currencies at once

Historical exchange rates — view 7, 30, and 90-day rate charts

Exchange rate charts — interactive charts with date and rate information

Home screen widget — see a currency pair directly from your home screen

Automatic synchronization — keep exchange rates up to date in the background

Manual synchronization — update rates whenever you want

Privacy-focused — no account, no ads, no tracking, and no analytics

Open source — licensed under AGPLv3

13 languages — ar, de, es, fr, hi, it, ja, ko, nl, pl, pt, ru, zh

Privacy

Currency conversion happens on your device. Network access is only used to synchronize exchange rates. No account is required and the app does not contain advertising, analytics, or tracking.

Free and open source

Offline Currency Converter is free software released under the AGPLv3 license.