Honest answers, in plain language.

At launch, anything Gemini can translate confidently between, which is most of the languages on Google Translate. We’re prioritising Tagalog, Thai, Spanish, Mandarin, Arabic, Japanese, Portuguese, French, German and Korean in the first months. If your pair isn’t there yet, write to us and we’ll let you know when it lands.

Yes. Both sides need the app for the translation to happen on the way through. NatChatt is on the App Store and Google Play; once you’re inside, you can invite someone from your contacts with one tap.

You can read your existing messages offline. Sending or receiving a new translation needs an internet connection, because the translation runs through Google’s servers. We don’t store a copy of the model on your phone.

Captions usually appear inside two seconds of someone speaking, depending on connection. For a steady call it feels close to real time. We’re honest about it being captions, not a synthesised voice; you still hear the person you’re talking to in their own voice.

The app itself is free to download and use. You only pay for translation credits when you want them. You get 15 free credits on signup, no card needed. After that, you buy credit packs whenever you want translation. See the full pack list on the pricing page.

Each credit covers Google's translation cost plus a small platform fee that keeps the lights on — payment processing, infrastructure, support. That's the whole price. No subscription, no markup on usage, no surprises.

Credits don't expire. Top up once, use them whenever — a week, a year, three years from now.

Unused packs can be refunded within 14 days of purchase. Once a pack has been used at all, that pack is non-refundable, but unused credits in any other pack still are.

The app shows your credit balance on the chat screen and itemises every translation, voice transcript, and call caption under usage history. You can set a low-balance alert so you’re never surprised, and you can stop topping up at any time — there’s no subscription to cancel.

On your phone and on the phones of the people you’re writing to. We don’t keep a copy on our servers. For end-to-end encrypted messages, the only versions of a conversation that exist are the ones on the devices that took part in it.

Gemini processes your message text or audio at the moment of translation. According to Google’s API terms, that data is not used to train their public models when accessed through the paid API. The translation is returned and the request is dropped. We don’t hold on to the request or response on our side.

No. We never see the contents of your conversations. If you write to support, we only see the message you send to support.

There’s no password to remember. NatChatt uses your phone number to sign in. Open the app, enter your number, and we’ll send you a one-time code by SMS. Tap the code and you’re back in, with your contacts and settings as you left them.

In the app, settings, account, delete. Or write to us via the /delete-account page on this site. We process the request inside seven days and send confirmation when it’s done. One thing to know first: because your messages live on your phone and not on our servers, deleting your account (or uninstalling the app) removes your chat history with no way for us to restore it. The on-device export tool that would let you back things up first is something we’re still building.

Not yet, and we want to be honest about it. Your messages live on your phone, not on our servers, so an export has to happen device-side — we haven’t built that tool yet. It’s on the roadmap and we’ll add it in a future release. In the meantime, anything you’ve already sent or received stays on your device until you delete it.