Free Android Point Of Sale cash register
There are several ways how to install free Android cash register and POS system to your device. Suitable for small restaurants, kiosks, shops.
Google Play Installation
[Recomended for your ANDROID phone]
APK File Installation
Google Play is not available on some phones or cash registers. In this case, download the APK file directly and install it on your device. Get last version of Elementary POS 1.76 here. You will need to allow installation from unknown sources.
Works on Sunmi cash register.