aCurrency is a currency converter for Android that provides hourly exchange rate updates for over 180 currencies. It also offers home-screen widgets, a 1-to-1 exchange rate calculator, and history charts ranging from 7-day to 3-year (1 to 3 years chart are provided by PRO version). The chart shows changes between two dates, and users can track multi-currency and perform inverse conversions. Additionally, it shows the percentage change since the previous day, supports portrait and landscape mode, and provides offline access. Users can import/export the currency list, auto-refresh widgets at a specified interval (limited options for free version), and take screenshots for sharing. It supports Bitcoin, Litecoin, Feathercoin, Namecoin, Novacoin, Peercoin, Terracoin, Primecoin currencies, and it is ad-free for PRO users.

It is important to note that users should not install this app on the SD card, or else the widget functions will not work. Furthermore, there are no notification ads used in the app. The innovative design and advanced technology of aCurrency have earned it selection as a Google I/O 2011 Developer Sandbox partner. The app is available in several languages, and the developers welcome any user interested in helping them translate it to their native language.