# Notabook vs PDF Compressor

Notabook and PDF Compressor are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Notabook sells 6 in-app purchases, starting at $6.99 per 7 days and PDF Compressor sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Notabook | PDF Compressor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/notabook-ai-note-taker/id6754932287/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 93 MB | 24 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, Mac |
| Age rating | +4 | 4+ |
| Developer | [燃 温](https://appshunter.io/developer/1850919213) | [Stellan Vane](https://appshunter.io/developer/1886632132) |

## What reviewers say

### Notabook

[App page](https://appshunter.io/ios/app/notabook-ai-note-taker/id6754932287)

Record, transcribe, and summarize audio with AI. Generate action items, ask questions about your notes, and create study tools. Export in various formats for seamless workflow integration.

**Highlights:** AI-generated notes and action plans, Ask questions about transcripts, Accurate, speaker-labeled transcripts, Live captioning, One-tap recording, AI-powered study tools (flashcards, quizzes), Export to PDF, DOCX, text

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $6.99 | per 7 days |
| Premium Weekly | $6.99 | per 7 days |
| Premium Monthly | $14.99 | per month |
| Premium Monthly | $14.99 | per month |
| Premium Yearly | $89.99 | per year |
| Premium Yearly | $89.99 | per year |


### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-compress-files/id6760887640)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $6.99 | per 7 days |
| Monthly | $19.99 | per month |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is Notabook free?

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

### Is PDF Compressor free?

PDF Compressor is free to download, with in-app purchases available.

### Do Notabook or PDF Compressor have ads?

Neither Notabook nor PDF Compressor shows ads.

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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.*