Pocket Quran for Android.
The complete Holy Quran in Arabic for Android devices. Very lightweight. Optimized for high-speed browsing. Featuring ultra-fast search & support for multiple bookmarks.

There are many applications that automatically start when you turn on your device; many of these you don't use or need, they just consume your valuable resources. Autorun Killer lets you manage applications that start up when you boot your device. Donate version even tries to prevent their restart (and is ad-free).