IP Tools is an excellent Android app for measuring internet performance on mobile data and Wi-Fi networks. It has several features that can be very useful to you. Among them is the Ping feature, which enables users to ping domains and obtain Jitter, Latency, and packet loss values. 

Another one is Traceroute, which shows the packets' transit paths and measures their delays. On the other hand, the DNS Lookup feature provides a list of IPV4 and IPV6 addresses for any domain, and the Ports Scanner allows you to view the port information for any domain or IP. Users can assess and gauge any web page's performance using the Web Performance Test.