Kiem Tra Dich Vu is an Android-based application developed by AwesomeDroid Studio that provides a quick solution to subscribers of mobile operators such as Mobifone, Viettel, and Vinaphone who are complaining about unfair charges for automated registration services. With its simple manipulation, users can check the services being used without losing any charge. By selecting the network used, the app shows the results, making it easy for users to know which services they are using. The app also offers other utilities, such as checking the promotional calendar of the network card load and updated promotional information about Mobifone, Viettel, and Vinaphone.

Moreover, Kiem Tra Dich Vu allows users to register to block ad messages with PBX and create messages to refuse or restore ad-received messages from the network. The app also offers the option to register for an account for fast running out of money.

Overall, Kiem Tra Dich Vu is a must-have app for mobile subscribers who want to avoid being charged unfairly and enjoy the added benefits that the application provides. It is an easy-to-use app that is highly recommended for everyone.