Speedtest is the internet speed test app from Ookla, a company founded in 2006 and based in Seattle.
One tap measures download speed, upload speed, ping and jitter against a nearby test server. Results are saved in a history, so users can see how their connection changes over time and back up complaints to their provider. Video tests check streaming quality, and a map shows mobile coverage reported by users. A built in VPN is offered on mobile.
The app is free with ads, and a small payment removes the ads.