Are you living or working in a low signal area? Then this is the app for you. With this app you can get a good idea of the Cellular and WiFi signal strength and find out which corners of your office or home are having the best reception. General user:
• Signal meter
• Speed test
• Phone health check
• WiFi network utility
• Discover WiFi devices
• Signal widgets

Advanced user:
• Dual SIM info for Android Lollipop 5.1 onwards
• Signal Logger
• Detailed Network info
• Cell towers info
• Network Latency Widget or Delay of data connection
• Out of service, low signal and roaming alerts.

Important:
• Dual SIM has been standardised from Android Lollipop 5.1 onwards. This app only measures the signal of active SIM. For getting signal measurements set Calls and Data to same SIM in SIM settings. There are still a lot of bugs in manufacturer implementations. Consider sending an email to describe bugs to incorporate workarounds.
• A very few phones are not following the signal reporting standard fully. If the signal strength is not updating then this is a sure sign of a broken ROM. This is a known issue and not a problem with the App.