Network Tester is a free Android app developed by DVG Tech Apps that helps you analyze and diagnose problems on your Wi-Fi and network internet speed. It allows you to check your actual internet speed using its network tester feature.

The app offers various features, including network testing like your host resolver, TCP connection, and verifying if your network is connected to the real web or not. You can also check the real download speed of a 10kb, 100kb, and 1mb file. Additionally, you can check your Wi-Fi or mobile data network to real download and upload speed. The app also allows you to test your connected Wi-Fi signal strength and check your connected Wi-Fi security. You can view your Wi-Fi and mobile data usage in graphs and get a history of the network speed tests done. Furthermore, it shows you data access of apps.

However, the app requires permission to access your mobile Wi-Fi state, turn on Wi-Fi, get your mobile data usage apps list, and access your location to obtain your Wi-Fi information like Wi-Fi name, etc. To show your mobile and Wi-Fi data usage, it requires PACKAGE_USAGE_STATS permission.

Overall, Network Tester is a useful app that provides you with essential information to diagnose and analyze network problems accurately.