Dr. Wifi: Speed Test, WiFi Analyzer, DNS Changer
Application permissions:
• Location: used to get the WIFI details
• Storage (not mandatory): used to upload screenshots when reporting problems to developer
• Microphone (not mandatory): used to record audio notes when reporting problems to develop
https://play.google.com/store/apps/details?id=com.trendmicro.speedy&hl=en