# Deepen: Book Notes by Voice — Remember what you read

> Active reading recall and personal knowledge mapping through voice notes. (iPhone/iPad app by Francois Sempe.)

- Source: https://appshunter.io/ios/app/deepen-book-notes-by-voice/id6780666477 (this page in markdown: same URL + `.md`)
- Developer: [Francois Sempe](https://appshunter.io/developer/1887391018)
- Category: Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 16 MB
- Languages: American English
- Released: 2026-07-01
- Data updated: 2026-10-05
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/deepen-book-notes-by-voice/id6780666477/reviews.md

## What is Deepen?

You finish a chapter, feel like you understood it, and a month later almost
  nothing is left. That is the normal outcome of reading, not a personal failing.
  Reading is passive: the text goes in, feels clear, and leaves no trace you can
  retrieve.

  Deepen makes it active, and it takes about a minute.

  HOW IT WORKS

  1. Log the pages you read. Your progress bar moves.
  2. Deepen asks you one open question. "What was the author actually arguing
     there?" or "What did you disagree with?"
  3. You answer out loud, in your own words, for about a minute.
  4. Your answer comes back as concepts, connections, and the questions you still
     have.
  5. Those concepts join a map of everything you have ever read.

  Speaking an idea back in your own words is retrieval practice, which is the
  best-evidenced way to turn reading into memory. Almost nobody does it, because
  writing notes is work. Talking for a minute is not.

  THE MAP IS THE POINT

  Every concept you articulate becomes a node. When the same idea shows up in a
  second book, Deepen links them without being asked. Over a few months you stop
  having a pile of separate books and start having one connected body of reading.

  Read something about legitimacy in a history book, meet it again in a book about
  organizations, and the map shows you the two are talking to each other.

  ASK YOUR OWN LIBRARY

  Ask a question in plain language and get an answer built only from what you have
  said about the books you have actually read. Not the internet. Your own words,
  with the notes they came from listed underneath.

  NOTHING IS EVER SCORED

  Deepen does not test you chapter by chapter. Nobody wants to be graded on their
  evening. The questions after each session are open and never scored, because the
  point is to make you think, not to make you correct.

  When you finish a book, it asks once more: what will you still be thinking about
  in a year? Your answer joins the map like any other. It is a lap of honour, not
  an exam.

  ALSO IN THE APP

  - Keep the words you had to look up, with the book you met them in
  - Keep the passages worth remembering, and share one as a sticker
  - Scan a barcode to add a book, or import your Goodreads shelves
  - A home screen widget showing the book you are on

  WORKS WITH PAPER

  Deepen never asks what you are reading on. Paper, library copy, hardback,
  secondhand, an ebook, a PDF. You talk, so it does not matter. Nothing to sync,
  no highlights to export, no cable.

  BUILT TO BE PRIVATE

  Your notes and your map live on your iPhone. The map is computed on the device,
  so it works with no signal at all. There is no account and no sign-up.

  FOR PEOPLE WHO READ ON PURPOSE

  Deepen is for nonfiction readers who want the reading to stick: students,
  researchers, people working through a field, anyone who has ever finished a good
  book and been unable to say what it argued.

  DEEPEN PRO

  Deepen is free to try. Pro unlocks unlimited recaps, the map across every book,
  and Ask.

  - Monthly: $5.99
  - Annual: $49.99 with a 7-day free trial

  Subscriptions renew automatically unless cancelled at least 24 hours before the
  end of the current period. Manage or cancel in your Apple Account settings.

  Privacy Policy: https://chamallox.github.io/deepen-legal/privacy
  Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
  Support : https://chamallox.github.io/deepen-legal/support/

## Key features

- Log pages read and track progress
- Answer spoken questions about content
- Generate concept maps from spoken answers
- Connect ideas across multiple books
- Query your personal reading library
- Save lookup words and memorable passages
- Import Goodreads shelves

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Weekly | $6.99 | per 7 days |
| Pro Annual | $49.99 | per year |
| Pro Annual | $79.99 | per year |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/deepen-book-notes-by-voice/id6780666477/reviews.md

### 5/5 — Great app!!

*2026-09-19*

Love the voice mode usually great note taking

## Frequently asked questions about Deepen

### How does Deepen help me remember what I read?

Deepen uses retrieval practice by prompting you to speak your understanding of the material. This active recall method is the most effective way to transfer information from short-term to long-term memory, making your reading more impactful.

### What is the 'map' in Deepen?

The map is a visual representation of your learned concepts. As you speak about ideas from different books, Deepen links them, creating a connected network of your knowledge that grows over time, showing relationships between topics.

### Can I ask Deepen questions about my reading?

Yes, you can ask questions in plain language. Deepen will provide answers based solely on the concepts and notes you have spoken about from the books you've read, not from external internet sources.

### Does Deepen work with physical books?

Absolutely. Deepen is designed to work with any reading material, including paper books, library copies, and ebooks. Since you interact by speaking, the format of the book does not matter.

### Is Deepen private and secure?

Yes, Deepen is built with privacy in mind. Your notes and knowledge map are stored locally on your iPhone, and the map computation happens on the device, ensuring it works offline and without an account.

### What are the subscription options for Deepen Pro?

Deepen Pro offers weekly and annual subscription plans. The annual plans include a 7-day free trial. Specific pricing details are available within the app's subscription section.

### How often is Deepen updated?

The latest version, 2.1.0, was released on October 4, 2026. Updates typically occur to improve features and reliability, ensuring a consistent user experience.

### What age rating does Deepen have?

Deepen has an age rating of 4+. This indicates it is suitable for a wide range of users, including children, and does not contain mature content.

## Version history (last 5 releases)

### 2.1.0 — 2026-10-04

-Better Map

### 2.0.9 — 2026-09-27

-bug fixes

### 2.0.8 — 2026-09-25

-app optimization

### 2.0.7 — 2026-09-13

-app optimization
-new design
-bug fixes

### 2.0.6 — 2026-08-30

-app optimization

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## More apps by Francois Sempe

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All apps by Francois Sempe: https://appshunter.io/developer/1887391018

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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 2026-10-05.*