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Onion Browser vs Tor Browser: catalog facts
Onion Browser	Tor Browser
Free Free and open source under the MIT licence.	Free Free and open source. The Tor Project is a US non-profit funded by grants and donations.
iOS	Windows, macOS, Linux, Android
Tor browsing on iOS with per-tab circuit control and security levels Endorsed by the Tor Project	Traffic passes through three relays, so no single one knows both who you are and what you opened Fingerprinting defences make one Tor user look like the next
iOS forces it onto WebKit, so it cannot match Tor Browser's fingerprint protections Browsing over Tor is noticeably slow	Noticeably slower than a direct connection; video is painful Some sites block Tor exit nodes outright or bury you in captchas
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 21, 2026

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