A variety of powerful system tools and utilities to get things done on Android.

Torrentex is lightweight bittorrent client for Android. It provides easy torrent downloads anywhere with your mobile device.

Features:
- No speed limits
- Magnet link support
- Multiple torrent download
- Download to external and internal memory
- File selection
- Ad free

Secure your privacy by screenlock and applock. Snaps pictures of intruders. Highest rated Screen Lock on Google Play! ★★★★★

Free, top-rated, real-time antivirus and anti-theft protection for Android™ devices.

A one-click root tool to help millions of people get root access and boost their Android devices.

Simple Task Killer allows user to safely end running applications.

Linux Terminal for Android. Run Linux command on your phone and install external android apps.

With Master File Manager you can easily manage your files.
Creating backups of apps and the RAM memory usage reading.
Delete, Copy, Move or Send your data now easy and fast with the Master File Manager and all also still completely free. No runtime.

UU Uninstaller fast uninstalls or freezes pre-installed (system) apps and easily restores them in a safe way.

This calculator can perform up to 10 digit calculation.
You can use it in your daily life.
Application helps to maintain budgets, calculation any where any on just a click.
Very interactive interface is implemented.

Key features:
Easier to use .
Light weight software .
Portrait and landscape screen supported.
Functionality such as square root, memory store etc.

This application both blocks unwanted calls and helps manage a blacklist.

System Gears

is an compact system monitoring application and Widget(Pro Only) for Android devices.

With System Gears ,you will able to monitor
your cpu usage,phone storage,ram memory sdcard and battery usage , and detailed information.

Quick,Restart Widget for rooted phones

Appcombine - lightweight and simple app manager tool.

Test app for MEMORY WIDGET PRO

This app is one of the system utility tool that improves your androids performance. It increases your phones performance and saves battery life. Apparently which boost your system os and memory. It also has process manager which let you clean system running apps. It included with Backup & Restore feature that help you backup apps as apk file and restore when you need them. System Cleaner feature cleans Cache, Thumbnail Cache, Log File, Empty Folder, Browser History, Clipboard, Market History...

All you need to know about your Android system and more!

Home Chooser Flow shows all Home apps in Cover Flow.
It can Choose or Manage Home apps, just Tap or Long press the Home Icon.

You can easily Set/Clear default Home, See the Home detail, Kill invisible Home to save memory and Uninstall Home app. And it uses green color text to show which Home is running.

It can support all screen resolution properly in Portrait/Landscape, include QVGA/HVGA/WVGA/WQVGA.

    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

Battery Saver is the most powerful battery power management application specially designed for Android. It aims at meeting customers' needs to save battery under various circumstances, and gives you options to handle all common factors that eat up your Battery. These could be wireless connection switched on when you are not using them, loud audio alert or vibration at unnecessary situation, and constantly retrying connecting signal at weak signal area, etc.