5 stars: This app has been invaluable for finding out which cable and power source is working properly for charging. You can clearly see the significant difference between a power USB cable and a data cable. Likewise a smart charger and an ordinary one. The only additional feature that I would like to see would be some type of log feature that would show the variation in current over the charge period.
3 stars: Good app in general, but on my Poco F3 (MIUI 12.5 as well as 13), it has a major bug. I open Ampere, unplug the charging cable, and my phone thinks it's still charging. I close Ampere, but it doesn't help. I have to reboot my phone to get it back to normal. So, don't use this app on any Poco (and possibly Xiaomi, Redmi devices).
2 stars: Ok, so usb charge tester/meter shows 9v 1.35 amp, energy meter also shows 14 watts. But this app just shows 2220 mili amps (i guess this app cannot show voltage, battery voltage is always at 4.2v. Thus no way this app shows correct amperage. Uninstalled, bye bye.
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