First of all, nothing beats reading a physical book.
But some books are hard to find, therefore I must use the power of Google and get my book in digital format. Then I have to use my smartphone to read it.
I use Moon+ Reader and I find this app the best one (so far) for reading. It’s very complex and yet very easy to use. Text is highly customizable and page turning is smooth.
Some books I have imported
Statistics about your reading. Unfortunately, if Moon+ Reader is running while phone is charging, app still records data. I don’t read that much.
You need to buy the full version of Moon+ Reader to record data about your reading habits. But , given the fact that I screwed my statistics just by keeping the screen on while charging, I think free version should bee just fine.