Offline Currency Converter
Offline currency converter with exchange rates, charts, and widget
David Neurieder Market & Price Unit Convertor
Screenshots
Description
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 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.
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
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.
What’s new (0.8.0)
Version 0.8.0:
- New "Sync historical data" button in Settings to retry the historical rate download
- Historical rates now download automatically on a fresh install, and the trend chart appears as soon as they arrive
- Much smaller app size thanks to code shrinking (about 6 MB installed instead of 70 MB)
Anti-features
Properties of this app that are worth knowing about before installing.
- NonFreeNet
Versions
Permissions
What the app asks the system for. Android only grants sensitive access after you confirm it.
- Internet accessSend and receive data over the internet.
- Network stateCheck whether and how the device is connected.
- Prevent sleepingKeep the device from going to sleep.
- Run at startupStart automatically after the device is switched on.
- Foreground serviceKeep running in the background, visible in the status bar.
- app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
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