OpenSignal is a handy application which provides multiple tools made to help you check out the speed on your Internet connection and to identify problems with regard to it. The user interface comes with a slick design and it's optimized both for smartphones and tablets. Inside the Dashboard you can find interesting metrics like nearby cell towers and Wi-Fi networks, quality of signal, etc.
You can have a better idea about the location of detected Wi-Fi hotspots and cell towers when you access the map. You can navigate using your fingers and find the nearest cell towers. Inside a separate section you can start a speed test. These can be performed to test your cell tower and Wi-Fi Internet speeds as well. The metrics involved here as download speed, upload speed and latency.
OpenSignal keeps a log of your speed tests and you can visualize the results inside a list or map. In addition, this application provides maps for checking out signal coverage. The data displayed here comes from multiple users and the experience they had in different locations. You can use it to see the real coverage of your provider, find areas covered each time you're in a remote location, etc.