Google Translate's servers are blocked behind the Great Firewall, so the app that works everywhere else goes dark the moment you land. Tova falls back to on-device translation when servers are unreachable, so it keeps working without a VPN and without signal.
Download on theApp StoreFree · No sign-up · Works offline in China — no VPN
Google's translation servers are blocked by the Great Firewall, so the app can't reach them without a VPN. Tova avoids the problem because it can run translation on your phone when a server is unreachable, instead of going dark.
Download Tova before you go so the on-device models are in place. After that the camera, voice, and text translation keep working with no connection.
No. Tova is built so the core translation never depends on a server you can't reach inside China. There is nothing to configure.