This application is great for ROM Management, App Manager, Root Explorer, Scripter & Terminal Emulator, and other great features.
Paid Version Here Rom Toolbox Pro
Free Version Here Rom Toolbox Lite
is a great application with great features, such as Device manager, Application manager, Network manager, System Control, System Toggles and MORE.
Paid Version Here Android Tuner Free
Free Version Here Android Tuner
To remove the yello triangle after rooting your Android device, this app is paid and totally worth it
Paid version here Triangle Away
Is a good application to make your Android device more faster, by hibernating the background apps that you don't use. this application is completely free
Free Version Here Greenify
AdBlock Plus for Android
to block ads on your Android device
this app is not avalibale on the playstore but you can still install it from this link
Nandroid Manager is the ultimate tool for managing all of your nandroid backups such as apps+data, text messages, call logs, and much more!
Free Version Here Nandroid Manager
Paid Version Here Nandroid Manager Pro
You can backup, restore, freeze (with Pro) your apps + data + Market links. This includes all protected apps & system apps, plus external data on your SD card. You can do 0-click batch & scheduled backups. Backups will operate without closing any apps (with Pro). You can move any app (or app data) to/from the SD card.
Free Version Here Titanium Backup (you must have the free app before download the key)
Paid Version Here Titanium Backup