Smart Data Watch is free app to monitor your network data usage and convert the usage as your currency also lets you to set quotas for daily,monthly usage

What's eating my network data? Time to get a data usage monitor!

As also found in the official Google Android Market:

This application is a call minutes, sms, mms and data usage meter to monitor your credit usage. Never exceed your quota again!

Supporters unlock: free times/contacts/groups; widget; usage log; greater configuration of plan inclusions + more. A free 5 day trial is offered.

Please report bugs!

Please visit http://creditusage.matthewwardrop.info for more information.

Pro add-on for AppUsage. Install AppUsage first, then unlock extra features with this add-on. Currently opts you out of data collection; more Pro features coming soon!

Measures time spent on each app. See which apps to uninstall because you're not using them!
The most accurate app usage tracker! Accurate to less than a second on Android 1.6 and up.

Automatically turns off 3G data connection when device is connected to WiFi network to reduce battery usage.

“MyCalls” helps you monitor your phone usage for voice, data and SMS.

Network Counter is Android (2.2+) application for monitoring of wireless network data traffic.

Features:
- Displays data traffic usage statistics for Wi-Fi and cellular / mobile networks.
- Possibility to setup an alarm for Wi-Fi and mobile data traffic usage.
- Network traffic statistics for currently active (running) applications.
- Ability to backup and restore of data traffic usage database.

Simple and statistical precision.

To help users understand their own mobile phone network data traffic usage, in order to better control the cost of data traffic.

2G/3G network data traffic monitoring capabilities.
The network data traffic to warn function.
The network data traffic statistics data display.

Paid version:
Monitoring data charts.
No ads.

Simple and statistical precision.

To help users understand their own mobile phone network data traffic usage, in order to better control the cost of data traffic.

2G/3G network data traffic monitoring capabilities.
The network data traffic to warn function.
The network data traffic statistics data display.

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.

Best browse with full speed & less web data！Enjoy your Secure & Private time.

Network Master is a small, fast, free and ultimate tool for network analysis, speed test and boost internet access. With Network Master you can check WiFi security, test network speed, detect intruders on LAN, optimize internet bandwidth, monitor data usage and share portable hotspot.

Essential app for all android users. Password protect your phone's personal data

An essential app for every android user. Password protect any personal data on your phone.
AppLock lets you protect any applications you want with a passcode: SMS, Email, Pictures, Calendar...any apps you choose

3G Traffic Lite is the free version of 3G Traffic Pro. It counts mobile internet traffic and save battery.

Power Schedule is a lightweight app that allows you to set an On/Off schedule for Airplane Mode (Telephony), WiFi, Bluetooth and Data connection. Ring Profile can be automatically switched between Silent and Normal.

You may want to set WiFi to off when you leave for work in the morning. Then back to on when you're home again and in range of your personal wireless network. Setting the phone to off will not completely power off your Android device, so you'll still have your alarms active.

I have really missed graphs of system status from android. I wanted something like you have in task manager on windows, or widgets on my KDE desktop. When I found nothing like that, I decided to write one, here it is.

Usemon is a simple application for monitoring usage of system resources. It displays graphs of CPU, RAM, and network usage. No root needed. It is extremely lightweight, because it gets these data directly from the kernel. It can show statusbar notifications of these too.

Allows parents to review and manage their child's phone usage. Tracks all incoming and outgoing text messages. Tracks call logs which shows corresponding callers phone number, contact's name from the device, duration of the call, and time of call.

You’ll be in touch with latest video news with this application. Get rid of old text RSS, grab new video one! Watch video news on your android device from web sites http://www.1tv.ru , http://www.vesti.ru and http://www.ntv.ru

ComQuotes - application with funny and interesting quotes by famous comedians like Mitch Hedberg, Dara O Briain, George Carlin, Dylan Moran, Eddie Izzard and more. Quotes are displayed in simple readable list format and can be easily added to favorites.