Speedcheck tools app
Speedcheck is great tools to check internet speed. It can be used to check with accuracy both Wi-Fi and cellular networks' speed capabilities.
You can keep track of all of previous test for further reference. All of the speed checks can be contributed to a crowdsourced map. There all of the public Wi-Fi Hotspots are available with the info about the speed of each one.
This social feature of Speedcheck is very useful. It lets you find open hotspots near you anywhere in the world. The app acts as a free Wi-Fi finder, which is great to save mobile on mobile internet.
You can also check internet speed from your browser on Speedcheck's website. Every check is logged to your account and you can track of your results in your personal history. There you can read very useful guide of how to speed up your internet.