I experience that my memory is used up on my android phone, but I dont understand what drains the memory.

I only found AnotherMonitor on fdroid, but it doesnt appear to show which app is consuming memory. Only total consumption.

Are there any good apps or solutions for this? Or at least as autonomous slash private as possible.

Im interested in cryptos, because it could serve as a foundation for an internet funded by people and communities. A crypto that protects people's privacy and has a low energy cost.

But is this enough to make it ethical? Are there other aspects to take into concideration? Or is ethical cryptos possible?

In particular Im looking into Mobilecoin which Signal has integrated into their app.