Babelvault

Babelvault

The private, on-device voice vault. Record any conversation, understand it in any language, and keep it locked on your device — forever.

Coming soon to the App Store See what it does →

One-time $14.99.  No subscription.  No cloud.  Works in airplane mode.

The idea

Like a recorder that actually understands.

Apple's Voice Memos can transcribe. Apple's Translate can translate. The cloud apps can summarize — but they upload your private conversations to someone else's servers. Babelvault does all of it, across languages, with nothing ever leaving your device.

Babelvault library on iPhone
What it does

Capture, translate, understand.

Every step runs on-device with Apple's Speech, Translation, and Foundation Models frameworks.

Record or import

Capture live, or import an existing audio or video file — meetings, lectures, interviews, voicemails, podcasts.

Transcribe any language

On-device speech recognition in 40+ languages, with automatic language detection — accurate, and fully offline.

One-tap translation

Translate any transcript into your language on-device. Spanish in, English notes out — see both side by side.

AI notes & lenses

A summary, action items, and decisions — tuned for the moment with lenses: Meeting, Lecture, Doctor visit, Interview, Journal.

Ask your vault

Chat across every recording you've made — "what did the doctor say about dosage?" — answered locally by Apple Intelligence.

Live conversation mode

Two-way, real-time translation. Tap a language, speak, and Babelvault transcribes, translates, and reads it back aloud.

Language Center

Pick the languages you use and download them for instant, fully-offline use — then add or manage more anytime in Settings, with live download status.

Hear it spoken back

Play any translation aloud in a high-quality Apple voice — or in your own Personal Voice if you've set one up — so you can speak a reply in the other language.

Nothing left untranslated

If Apple's translation doesn't cover a language (like Hebrew), Babelvault falls back to its on-device AI model — so you're never stuck.

Never lose a recording

Crash-safe capture writes as you go — if a call interrupts you or the app is killed, the recording is recovered automatically the next time you open Babelvault.

Replay any moment

Tap any line of the transcript to jump straight to that point in the audio, with the current line highlighted as it plays. Label speakers and star the moments that matter.

Export without lock-in

Share a clean PDF, Obsidian-ready Markdown, plain text, or .srt/.vtt captions — or copy the transcript with timestamps. No paywalled exports. Your words, your files.

Babelvault translating a transcript
Babel, solved

Understand a conversation you couldn't follow.

Record a conversation in one language and read it in yours. The original and the translation sit side by side, and the AI notes are written in your language too — so you walk away knowing exactly what was said.

Live translate

Talk to anyone, on the table between you.

Pick two languages, set the phone down, and take turns. Babelvault listens, shows the live transcript, translates each turn, and speaks the translation in the other language — no internet required once the languages are installed.

Babelvault live conversation translation
Built for offline

Your languages, downloaded and ready.

On first launch you choose the languages you speak and translate, and Babelvault downloads them — so transcription and translation work instantly, even in airplane mode. Add or remove languages anytime in the Language Center, each with live download status. And the languages Apple's Translate doesn't cover are handled by the on-device AI model, so nothing is off-limits.

Privacy by design

Your conversations never leave your device.

Everything — recording, transcription, translation, and AI notes — happens on your iPhone. No account, no analytics, no third-party AI, no servers. Lock the whole vault behind Face ID. The simplest proof: it works in airplane mode.

Pay once

What Otter charges per month, Babelvault charges once.

Cloud transcription apps run $8–17 every month — and upload your private conversations to their servers. Babelvault is a single $14.99: no subscription, no per-minute charges, no usage limits, no old notes locked behind a paywall. And your audio never leaves your iPhone.

Pricing

One price. Yours forever.

One-time · No subscription
$14.99 once
  • Record, import, transcribe & translate
  • Offline language downloads + premium voice playback
  • On-device AI notes + Ask your vault
  • Live two-way conversation translation
  • Face ID vault · everything on-device
Coming soon to the App Store