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Speedtest by Ookla vs nPerf: catalog facts
Speedtest by Ookla	nPerf
Free Free on the web and in the desktop and mobile apps.	Free The web speed test is free to run.
Windows, macOS, Android, iOS, Web	Windows, macOS, Android, iOS, Web
Works in a browser or in apps for most platforms Picks a nearby test server automatically	Measures download, upload and latency Apps for mobile and desktop as well as the web
Closed source Site includes links to other Ookla services alongside the test	Not open source Tests against nPerf's own servers only
Downloadable app, Web application	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.