FBReader might be a nice choice. It's pretty minimalistic, configurable just the right amount, supports EPub, FB2, MOBI and a bunch of other formats. I'm pretty

FBReader might be a nice choice. It's pretty minimalistic, configurable just the right amount, supports EPub, FB2, MOBI and a bunch of other formats. I'm pretty happy with it – give it a try too if you haven't yet: https://f-droid.org/packages/org.geometerplus.zlibrary.ui.android/ https://f-droid.org/packages/org.geometerplus.zlibrary.ui.an... https://fbreader.org/android https://fbreader.org/android