# Synapse: AI Voice Notes — Private AI voice notes

> Private AI voice notes (iPhone/iPad app by Luis Tiburcio de la Cruz Fernandez.)

- Source: https://appshunter.io/ios/app/synapse-ai-voice-notes/id6781167104 (this page in markdown: same URL + `.md`)
- Developer: [Luis Tiburcio de la Cruz Fernandez](https://appshunter.io/developer/6781167106)
- Category: Productivity, Business
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 18 MB
- Languages: American English, European Spanish
- Released: 2026-10-08
- Data updated: 2026-10-11

## What is Synapse?

Speak, and Synapse turns what you say into an organized note with a title, a summary and a list of action items. Everything happens on your iPhone: your voice is never sent to a server.

Built for people who handle sensitive information, like lawyers, doctors, journalists and executives, and for anyone who would rather keep their ideas in their pocket.

TRULY PRIVATE
• Transcription and AI run on your device. No servers, no cloud, no account.
• Works in Airplane Mode, on the subway or in the mountains.
• We collect no data: no analytics, no ads.

HOW IT WORKS
• Tap and talk: a quick idea or a whole meeting.
• When you stop, your device's AI organizes the text: it adds a title, writes a summary and pulls out the action items.
• Check off tasks, copy the note as Markdown or share it.

TURN VOICE MESSAGES INTO NOTES
• Got a long voice message on WhatsApp or Telegram, or a recording in Files? Share it to Synapse and get a transcript, a summary and action items in seconds.
• The audio is processed on your iPhone and is never uploaded.

FOR EVERY MOMENT
• Apple Watch: capture an idea from your wrist.
• CarPlay: dictate an idea from your car's screen and see your recent notes.
• iPad: review and organize your notes on a bigger screen.

NO SIGN-UP
• No email, no password, no credit card.
• No note limit: only your device's storage.

UPFRONT ABOUT HOW IT WORKS
• On first launch, Synapse asks before downloading its speech recognition model (Nemotron 3.5 by NVIDIA, about 665 MB). It downloads once; after that everything works offline.
• Titles, summaries and action items come from Apple Intelligence, built into the system. Synapse requires a device that supports Apple Intelligence (iPhone 15 Pro or later, or an iPad with Apple Intelligence) with Apple Intelligence turned on.

From a thought to an organized note, without anyone else reading it.

## Is Synapse safe?

Not enough ratings yet to assess Synapse.

## Is Synapse legit?

Synapse: AI Voice Notes has limited verification signals. The AppsHunter Legitimacy Score for Synapse is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-08

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-11.*