Calculator, converter and more. Look for Calculator on your home screen after installing the app. • Deep customization: themes, number formatter and etc. • No ads, in-app purchases or asking for donations • Open source Calculator • Home screen widget • Copy, paste, save and share expression results • Trigonometric functions • Fractional output • Optional Indian numbering system Unit converter • 601 units • Home screen widget • Currency converter (uses internet) • Favorite units • Organize unit groups • Smart search algorithm Date calculator • Add and subtract dates • Calculate difference • Create events in calendar Time converter • Add to favorites • Add labels to time zones Body mass index • Get instant and accurate results Permissions INTERNET ("full network access") Used in Unit Converter to update currency rates. Requests are made only when you select a currency unit. android.permission.VIBRATE ("allows access to the vibrator") Used for haptic feedback on button presses. Make sure your Touch feedback is enabled in device settings. ACCESS_NETWORK_STATE ("view network connections") Used in Unit Converter as a callback. Retries to update currency rates if there was an error (no network, for example) and the Internet connection is back. WAKE_LOCK ("prevent device from sleeping") Not used explicitly in code. Added automatically by Widget feature. android.permission.RECEIVE_BOOT_COMPLETED ("run at startup") Not used explicitly in code. Added automatically by Widget feature. android.permission.FOREGROUND_SERVICE ("run foreground service") Not used explicitly in code. Added automatically by Widget feature. You can always check the source code and build the app yourself: https://github.com/sadellie/unitto Permissions and Data? Visit: https://github.com/sadellie/unitto/security/ Try web: https://sadellie.github.com/unitto/app