[siatko]

I use it since years on my PocketBook Touch HD 3. I especially like the statistics. You might not care about them, but I find them very interesting.

[joshstrange]

If you like the statistics you might enjoy BookOrbit. I'm a sucker for stats like this and love having them centralized so that it's not just on my e-reader (in case it dies or if I read on another compatible app that syncs progress/stats).