Easy and free way to inspect your android device system internals!

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.

Reach your Android’s maximum potential by increasing speed, saving battery power and monitoring data usage with NetQin’s Android optimization app. Android Booster FREE will improve your Androids performance in seconds with it’s easy to use interface by helping you reclaim memory, save battery power, kill tasks and give you an easy way to uninstall unwanted apps. Android Booster also contains a handy Widget which gives you the power of one-click optimization.

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

In need of a timer for the kitchen, sports, or any other task at home or at work ?

Going for a run and want to measure your performances using a powerful stopwatch ?

Kill running tasks!

Short for MTK, Mobo Task Killer can also be known as a task killer, task killer manager, app killer or service killer etc. It helps manage your phone system’s running apps and services. If your phone often runs slowly or battery is exhausted so soon, our task killer will be an ultimate choice app to kill tasks, free memory, and speed up your phone as well as save battery.

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.

Pappy Tools (System Tools and Utilities) is a new product designed to improve your android experience .
At the moment it is a dynamically evolving product, which is being actively tested.

MyTaskManager ist ein übersichtlicher Task Manager, mit extra Funktionen, wie das automatische Schließen der Tasks beim starten des Bildschirms.

Appcombine - lightweight and simple app manager tool.

Auto On Off flight mode Scheduler

Better alternative to other Task Killers/Task Managers. STK from NetQin is one of the fastest and smallest task killers.
Quickly kill running tasks, save the RAM for your mobile. Save battery power. This is a free application.
We will try our best to make it faster, smaller, add features needed and easier to use.

Fully control your Windows PX!

A simple and amazing application to manage your applications and services. Free memory from unnecessary applications in just one click.

○ View running applications and processes.
○ End a running application or process.
○ Switch to the running application.
○ Show Memory Information.

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

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.

    安安卜是一款集文件管理、任务管理、来电防火墙、短信过滤、网络管理、数据库管理、垃圾清理、开机加速、内存管理、监控器于一体的Android管理软件，全面管理android系统问题。
    AndBox is a set of files management, task management, call firewall, SMS filtering, network management, database management, garbage clean, boot speed, memory management, monitor management software, Overall management of the android system problems.

More http://code.google.com/p/andbox/
https://www.slideme.org/user/18222/applications/18222

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).