# Notator | Annotate Documents vs Good PDF Notebook

The clearest difference is update cadence: Good PDF Notebook at every 8 days against Notator | Annotate Documents's every 2 months. Good PDF Notebook also leads on iOS requirement (16.4 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Notator | Annotate Documents sells 2 in-app purchases, starting at $1.99 per month and Good PDF Notebook sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Notator | Annotate Documents ships an update every 2 months, Good PDF Notebook every 8 days. The most recent releases landed on September 19, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Notator | Annotate Documents | Good PDF Notebook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/good-pdf-notebook-pencil-app/id6466286421/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | — | Freemium |
| Size | 30 MB | 291 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CIMTOPS SG LAB Pte. Ltd.](https://appshunter.io/developer/1657070999) | [Kairoos Solutions SL](https://appshunter.io/developer/978066434) |

## What reviewers say

### Notator | Annotate Documents

[App page](https://appshunter.io/ios/app/notator-annotate-documents/id6447326736)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Notator Pro Monthly | $1.99 | per month |
| Notator Pro Yearly | $8.99 | per year |


### Good PDF Notebook

[App page](https://appshunter.io/ios/app/good-pdf-notebook-pencil-app/id6466286421)

Create beautiful notes, sketch ideas, and annotate PDFs with advanced ink tools and AI assistance. Convert handwriting to text, scan documents, and organize files seamlessly across cloud services. Enjoy a realistic ink-on-paper feel with stylus support.

**Highlights:** Advanced ink tools for writing and sketching, AI Assistant for summarization and translation, Handwritten notes to editable text conversion, Document scanning with automatic frame recognition, Cloud service integration for file management, Full-text search for PDFs, PDF reader with highlighting and read aloud

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All and AI Assistant | $2.99 | per month |
| GoodPencil Upgrade | $3.99 | one-time |


## Frequently asked questions

### Is Notator | Annotate Documents free?

Notator | Annotate Documents is free to download, with in-app purchases available.

### Is Good PDF Notebook free?

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

### Do Notator | Annotate Documents or Good PDF Notebook have ads?

Neither Notator | Annotate Documents nor Good PDF Notebook shows ads.

### Which is updated more often, Notator | Annotate Documents or Good PDF Notebook?

Notator | Annotate Documents ships an update every 2 months, and Good PDF Notebook every 8 days. Most recently, Notator | Annotate Documents was updated on September 19, 2026 and Good PDF Notebook on September 8, 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.*