Offline voice translator for iPhone

Say it in your language.
Be understood in theirs.

Prau recognizes, translates and speaks in 19 languages — entirely on your iPhone. No internet, no accounts, no servers. Nothing you say is ever sent anywhere.

Download on the App StoreFree 3-day trial · iOS 18 or later

🇬🇧Where is the nearest pharmacy?

🇪🇸¿Dónde está la farmacia más cercana?

🇪🇸Al final de la calle, a la izquierda.

🇬🇧At the end of the street, on the left.

Real screens from Prau — nothing staged.

Privacy is the design, not a setting

Most translators send your voice to a server. Prau doesn't have one.

• No accounts, no sign-in.
• No analytics, no ads, no tracking SDKs.
• No servers of our own — there is nowhere to upload to.
• Built only on Apple's on-device frameworks: Speech, Translation, Vision, AVFoundation.
• Delete a conversation, or all of them, at any time. Delete the app — the history goes with it.

Read the full Privacy Policy →

Where Prau goes further

Not another everything-translator. One job: a conversation that works without a network and never leaves your phone.

* Based on the App Store listings and websites of the leading paid translator apps, September 2026.

How it works

Three steps, then it just works — anywhere.

1. Pick a pair of languages

   Tap the language buttons at the top. The first time, iOS offers to download the packs — confirm, and after that translation never needs a network.

2. Tap the microphone and speak

   Prau recognizes your words on the device, translates them and reads the translation aloud. The other person answers and hears their reply in their own language.

3. Keep the conversation

   Every conversation is saved automatically. Search it, reopen it, export it to TXT or PDF, share it. This part is free, always.

See it, not just read it

Every screen below is Prau 1.0 as it runs on an iPhone today.

🎧

Translation into your headphones

Connect AirPods or any headphones. The translation into your language plays quietly in your ear; the other person hears their language from the phone speaker.

👥

Face-to-face mode

Put the phone between you. Each side sees the screen the right way up, in its own language, and speaks in turn. Made for a hotel desk, a pharmacy, a taxi or a shop.

🕘

One conversation per person — voice, photos and PDFs together

Every conversation is saved on your iPhone. Swipe a conversation right to rename it — “Hotel in Lisbon”, “Landlord”. Open it and tap “Continue this conversation”: new speech, photos and PDF pages land in the same thread, so one counterpart means one record, one summary, one export. Search across everything, export any conversation to TXT or PDF. And in any card, press and hold to select and copy a single word or phrase. Translation history, searching it, exporting and copying never require a subscription — not now, not later.

✨

Summary written on your iPhone

On iPhones with Apple Intelligence, get a short summary of a whole conversation — the key points in a few lines, written on the device and never sent anywhere.

📷

Photos and PDFs

Point the camera at a menu, a sign, a document — or import a PDF. Text is recognized and translated on the device, laid out in readable paragraphs, exportable as PDF.

Stream: live subtitles for anything you hear

Foreign TV, a lecture, a guided tour, a station announcement — point your iPhone at the sound and read along in your language as it's spoken.

• Nothing to pressPrau listens continuously and writes the translation paragraph by paragraph, like subtitles.
• Offline, even in Airplane ModeRecognition and translation run on the iPhone — in a museum basement, on a train, abroad without a SIM.
• Into your headphonesRather listen than read? The translation plays quietly in your AirPods.
• Pause whenever you needOne tap and Prau stops listening; another tap and it carries on.
• Private by designThe audio never leaves your iPhone. No servers, no recordings sent anywhere.

TV & radioLecturesGuided toursAnnouncementsMeetings

Set up once, before the trip

Two things live inside iOS, not inside Prau. Do them at home on Wi-Fi — after that everything works with no network at all.

1. Language packs for translation

   Open Prau and pick your pair. iOS shows the “Required downloads” sheet — tap the arrow next to each language. Roughly 50–100 MB per language, once. Later you can add packs in Prau → Settings → Languages.

2. Offline dictation for your voice

   iPhone Settings → General → Keyboard → Dictation Languages. Add each language you will speak. If a language is missing from that list, add its keyboard once (Keyboard → Keyboards → Add New Keyboard) — dictation follows automatically. iOS downloads the model in the background, usually within a day, fastest on Wi-Fi while charging. In Prau → Settings → Languages a green microphone means the language is ready.

3. Headphones — optional

   Connect AirPods or any headphones and choose “My language” in Prau Settings. Your translation plays quietly in your ear; the other person hears theirs from the phone speaker.

Text and photo translation don't need dictation at all — they work as soon as the packs are in.

19 languages, fully offline

Prau Pro

Try everything free for 3 days. Then pick what suits you.

Base prices for the United States. Your exact price, including local taxes, is shown in the App Store. Prices are set per country by the App Store — open Prau there to see yours.

History, search and export to TXT/PDF are free for everyone, always.

Prices in USD; your local price is shown in the App Store. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings. Restore purchases: paywall → Restore, or Settings → Restore purchases.

Download on the App StoreFree 3-day trial · iOS 18 or later

Support

Get in touch

Questions, bugs, ideas — write to [email protected]. We answer personally, usually within a day.