# AI Notebook vs CrystalForge

The clearest difference is in-app purchases: CrystalForge at none against AI Notebook's 10. CrystalForge also leads on ads (none vs shown). AI Notebook's advantage is update cadence (every 9 days vs every 3 weeks) and device support (5 vs 2). On price there is nothing between them.

Both are free to download. AI Notebook sells 10 in-app purchases, starting at $9.99 per 7 days. CrystalForge asks for nothing beyond the download.

AI Notebook ships an update every 9 days, CrystalForge every 3 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | AI Notebook | CrystalForge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (193 ratings)](https://appshunter.io/ios/app/ai-notebook-smart-note-taker/id6737346766/reviews)** | — |
| Number of ratings | **193** | — |
| Positive reviews | 45.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 178 MB | 4 MB |
| Requires iOS | **15.0** | 17 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [APTE Ltd](https://appshunter.io/developer/1675202009) | [KIENY KWAN](https://appshunter.io/developer/1812131057) |

## What reviewers say

### AI Notebook

[App page](https://appshunter.io/ios/app/ai-notebook-smart-note-taker/id6737346766)

This app transforms your notes, recordings, and documents into concise summaries and interactive learning tools. Engage with your content through AI chat, create presentations, and generate study aids like flashcards and quizzes. Organize, export, and share your work efficiently.

**Highlights:** Summarize documents, PDFs, and web pages, Chat with your content to clarify concepts, Record and transcribe audio with speaker identification, Generate podcasts, infographics, and slides, Create study guides, quizzes, and flashcards, Organize notes with folders and search functionality, Export and share notes

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Yearly | $39.99 | per year |
| Yearly | $69.99 | per year |
| Yearly Premium | $89.99 | per year |
| Yearly | $119.99 | per year |
| 10 Credits | $4.99 | one-time |
| 25 Credits | $9.99 | one-time |
| 55 Credits | $19.99 | one-time |
| 150 Credits | $49.99 | one-time |
| Lifetime Premium | $99.99 | one-time |

**What reviewers like**

- 👍 Good
- 👍 Effectively helped with course notes transcription
- 👍 Provides good summarization function
- 👍 Useful software
- 👍 Great note-taking tool

**What reviewers complain about**

- 🐛 AI unable to align with real-time
- 🐛 Generates nonsensical content
- 🐛 Recording and analysis not working
- 🐛 Sync issues between devices
- 🐛 Paid version has less functionality than free version

**Reported bugs**

- Recording not working
- Summarization not working
- Frequent crashes
- Incompatible with older devices

**Requested features**

- Ability to load files and images
- Cross-platform support (Mac, Web)
- Improved language support (multilingual)


### CrystalForge

[App page](https://appshunter.io/ios/app/crystalforge/id6760962020)

**In-app purchases:** none


## Frequently asked questions

### Is AI Notebook free?

AI Notebook is free to download, with in-app purchases available.

### Is CrystalForge free?

CrystalForge is free to download, with no in-app purchases.

### Do AI Notebook or CrystalForge have ads?

AI Notebook shows ads; CrystalForge does not.

### Which is updated more often, AI Notebook or CrystalForge?

AI Notebook ships an update every 9 days, and CrystalForge every 3 weeks. Most recently, AI Notebook was updated on November 8, 2026 and CrystalForge on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*