DownTester is described as 'allows you to easily test your Internet download speed in multiple locations around the world. It automatically test the download speed of the URLs that you choose, one after another'. There are more than 25 alternatives to DownTester for a variety of platforms, including Online / Web-based, Android, iPhone, Android Tablet and Windows Phone. The best alternative is Speedtest by Ookla, which is free. Other great apps like DownTester are Fast.com (Free), LibreSpeed (Free, Open Source), SpeedOf.Me (Free) and nPerf (Free).
SpeedOf.Me is an HTML5 Internet speed test. No Flash or Java needed! It is the smartest and most accurate online bandwidth test. It works well on iPhone, iPad, Android, Windows 8 and other mobile devices, as well as desktop computers.
More than a simple speed test, nPerf brings you the best and the fullest mobile connection quality measurement tool up to 10 Gb/s speeds! Full QoS test: In few seconds, test your bitrate speed, latency, browsing speed and video streaming quality on your mobile device.
Network Speed Test can provide you detailed information about the upload and download speeds of your internet connections. The App also maintains a history of the internet connections you’ve tested for easy comparison.