Under half a second.
Typed translation lands in 52–91 ms, and a spoken turn stays inside 500 ms end to end. The timings are shown on screen, not just claimed.
CT-PO 1.0
Translation,
done on device.
59 languages. None of them leave your phone.
Type it or say it and the answer is there in under half a second — translated, spoken aloud, and timed on screen so you can watch it happen. Download a language once and CT-PO keeps working with the radio off.
One download. Then the radio can stay off.
Built around the half second you can actually feel.
Nothing leaves the phone.
No server, no account, no telemetry. Your text and your audio are translated on the device and never sent anywhere.
Works in airplane mode.
Language packs download once, about 30 MB each. After that CT-PO translates, listens and speaks with the radio switched off.
Three steps. That's the whole thing.
- 1
Install the app.
Press the button above and Android's installer takes it from there. Needs Android 13 or newer, plus Google Play services for the translation models.
- 2
Download the language.
Pick your pair on the Setup screen and CT-PO fetches those packs over Wi-Fi — roughly 30 MB each, once. This is the only moment the app touches the network.
- 3
Speak.
Hold the mic and talk. CT-PO hears you on-device, translates while you're still speaking, and says it back out loud — offline, in under half a second.