NetQin Mobile Manager will be a good call filter just for you. Block unwanted calls now and protect your privacy. Now with better developed features, you will no longer need to worry about privacy leak. Protect your private info 24x7.

Battery Saver , the professional power manager , is the best free battery saving app which is capable of extending your battery life. And package size is the smallest of all battery manager apps.

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).

Fast Task Killer
Simply stop and kill unwanted applications and processes free up memory and increase your battery life

Memory Booster is a powerful mobile Memory & RAM boosting tool specially designed for Android smartphone users. It is a handy memory optimizer tool that will keep your Android smartphone running faster and efficiently. It increases your cell phone's performance by making more memory available for both your applications and the mobile system.

ROOT Power File Manager is a powerful tool for any user with Rooted android devices.

Appcombine - lightweight and simple app manager tool.

Memory Booster Lite Tablet Version - Android RAM Optimizer to Speed up Your Tablet!

One-stop task manager. Monitor and kill task, speed up phone, and save battery.

1*1widget to monitor memory usage.
search&sort task by name.
auto-kill task when screen off.
ignore app when kill.
vivid online help.

Gemini Taskiller Widget

This is a widget used to optimize RAM of your Android device (nothing for else :-), but it is easy, fast, safe, extreme less RAM usage!). The "Shake Mode" allow user to release RAM at any time (even when you are playing game) by shaking your phone! It can be used as either plug-in of "Gemini App Manager (v1.5.0 and above)" or a independent widget.

2x2 Home screen clock widget displays time in a grid.
Features: Customizable color themes, Time or date display, Time zone selection, Tap for Configuration, Change size within the 2x2 space.

Widget is lite, and dont dry your battery. The clock turns off with the screen when you turn off device.

The clock is also resistant to the task killer'y. Do not stop when you force stopping the application.

Perfect solution to extend battery life

Your phone runs slow, sluggish ? do not worry try this app to clean app cache, stop background tasks, clear RAM to boost battery life and device performance.

You have too many apps installed and it is difficult to find and launch the app you want ?
Try this app to organize apps, bookmark them in category wise to locate easily and launch them.

Save Battery,Free Memory,Kill task,close everything,Uninstall app,Speed up phone

A task manager application which monitors running processess and their memory usage. Allows killing of selected processes and remembers previously killed processes.

Speed up phone;
Save battery;
Auto kill & widget;

Quick App Killer is a tool to kill running tasks for speeding up your phone, saving your battery life;

Best task/app killer on Android Market.

Most downloaded Android Cleaner and RAM Booster in the world from a top 10 global developer. Over 100 million users, supporting 32 languages. ☆ Featured by CNET, LA Times, The Boston Globe, XDA & much more.

This is the Ultimate Application Killer. This app lets you kill running applications and system services. You can also back-up applications you’ve downloaded or uninstall them from your device.

Features include:
• Kill Running Applications
• Kill Running System Applications
• Hide Applications
• Uninstall Downloaded Applications
• Backup Applications

Simple Task Killer allows user to safely end running applications.