I am doing research on best practices for my lithium batteries and lifepo4 powerstation. There's some conflicting opinions and variation for cycle numbers.
Will leaving my things plugged in at 100% hurt it more than constantly unplugging at 80% and replugging at 20%?
If this is an Android phone, go install Accubattery and do what that says. It's designed for many different phone batteries and associated tech (e.g. overcharge circuitry).
There are so many different models and variations in the electrochemistry, general advice is usually a miss.
If you insist on generalizing lithium tech, keep it between 30-80% charge for good longevity. The extremes of full and empty are rougher on it.
Too bad that app has 7 trackers embedded and access to the ad ID :/
The permissions look fairly reasonable to me considering it needs to run at startup and monitor other apps, and the Pro upgrade is an embedded option that would need connectivity.
I just firewall it anyway, but that requires root.
IIRC you can change your ad ID any time but that's kinda outside the scope here.