I encourage you to install the just released official Bible app from the Jehovah's Witnesses. It's a wonderful app for research and study and is now available in English here at Play store (search for org.jw.jwlibrary.mobile to find it). Currently, it includes the NWT (revised) English edition, it should be available in other languages in the future, meanwhile, I will leave my application available at this time and will update for any fixes, etc.
JW Bible app uses auto complete and smart chapter entry to quickly locate and display a scripture, which is different then the commonly used method of tapping on book name and chapter number. It's very small and uses a single epub file downloaded from jw.org, nothing else is downloaded or saved in your device.
All content is based/streamed from jw.org web site but this is NOT an official application of the Jehovah's Witnesses.