Have you ever felt that one Charger / USB cable charges your device really fast and the other does not? Now you can try this with Ampere. The application works on Android 4.0.3+ devices. Not all devices are compatible because there are devices that lack an appropriate measurement chip (or interface) and are not supported at all. Read the list of non-compatible phones at the end of the description.
( 4.0.3 and up)
Ice Cream Sandwich (4.0.3 - 4.0.4),Jelly Bean (4.1 - 4.3.1),KitKat (4.4 - 4.4.4),Lollipop (5.0 - 5.1.1),Marshmallow (6.0 - 6.0.1),Nougat (7.0 – 7.1.1),Oreo (8.0-8.1)