Android

FBreader

Moon reader

Page turner

Page turner is unusable at moment of screenshotting (2014) as it crashes when downloading a book.

Perfect reader

iOS

1BookStore

Bookari

Contains ads with sounds.

eBook Search was unique in that it delegated the opening/reading of the ebooks to another app. It can't read ebooks, but it was good at searching them.

FlyBook

Search was not properly functioning (2017-08-17).

KyBook

Search was not properly functioning (2017-08-17).

Marvin

Could not handle HTML is for the content field. It rendered it as plain text.

Marvin classic Free

MOBIReader

ShuBook1F

Search was not properly functioning (2017-08-17).

tiReader 2 Lite

Did not function at all (2017-08-17).

Yomu

It worked okay but no pagination or search (2017-08-17).