Offline Currency Converter

Offline Currency Converter

Offline currency converter with favorites, charts, and widget

David Neurieder Market & Price Unit Convertor

Download (12 MB)

Screenshots

Screenshot of Offline Currency Converter Screenshot of Offline Currency Converter Screenshot of Offline Currency Converter

Description

Offline Currency Converter is a privacy-focused currency converter that works completely offline. No account, no tracking, no analytics — just exchange rates in your pocket.

Sync rates from the free Frankfurter API (European Central Bank) and convert 160+ currencies entirely offline. Configure sync intervals (6h, 12h, 24h, 48h, weekly, or manual only) and let WorkManager handle background updates.

Features:
  • Favorites — star your most-used currencies for quick access
  • Multi-currency view — see conversions to all your favorites at once
  • Rate trend charts — 90-day interactive charts with touch tooltips and date range tabs
  • Home screen widget — Material You dynamic colors, works with any currency pair
  • Sync status — colored badge shows how fresh your rates are
  • 160+ currencies — all ECB reference rates
  • Offline-first — all conversions happen on device
  • Privacy first — no accounts, no tracking, no network permissions at runtime
  • Material Design 3 — modern UI with dynamic theming
  • 13 languages — ar, de, es, fr, hi, it, ja, ko, nl, pl, pt, ru, zh
Free and open source (AGPLv3).

What’s new (0.4.0)

Version 0.4.0:
- Favorite currencies with default picks on first install
- Multi-currency view: see all favorites at once
- 90-day rate trend charts with interactive touch tooltips
- Date range tabs (7D/30D/90D) persisted across restarts
- Material You widget with cross-rate support and auto-update
- Settings page with favorites management
- Amount persistence across app restarts
- Auto-sync on first install and app updates
- Sync status badge, pull-to-refresh, manual sync option

Anti-features

Properties of this app that are worth knowing about before installing.

  • NonFreeNet

Versions

Version Date Size Requires Android Download
0.4.0 current
47cdca59094e3d9d…
 2026-07-16 12 MB API 26
0.3.0
5b69b4cf11ea8423…
 2026-07-14 12 MB API 26
0.2.1
80637bfd14c0f75c…
 2026-06-24 12 MB API 26

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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