# PDF Compressor vs Note Book App

The clearest difference is rating: PDF Compressor at 5.0 against Note Book App's 3.0. PDF Compressor also leads on iOS requirement (15.6 vs 18.2). Note Book App's advantage is in-app purchases (none vs 3) and update cadence (every 4 days vs every 3 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. PDF Compressor sells 3 in-app purchases, starting at $4.99 per 7 days. Note Book App asks for nothing beyond the download.

PDF Compressor holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

PDF Compressor ships an update every 3 months, Note Book App every 4 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | PDF Compressor | Note Book App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/pdf-compressor-pdfpress/id6756151715/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/note-book-app/id6756196494/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 44 MB | 74 MB |
| Requires iOS | **15.6** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Imad Khan](https://appshunter.io/developer/1835041090) | [Primus Okorie](https://appshunter.io/developer/1812329485) |

## What reviewers say

### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-pdfpress/id6756151715)

Easily reduce the size of PDF files without sacrificing quality. Organize documents with folders and import PDFs instantly. Ideal for students, professionals, and anyone needing to manage digital documents efficiently.

**Highlights:** Ultra-efficient PDF compression (up to 98%), High-quality output, Simple file picker, Built-in folder organization, Fast, intuitive interface, Works offline, Share compressed PDFs (Premium)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Yearly Premium | $19.99 | per year |
| Lifetime Premium | $12.99 | one-time |


### Note Book App

[App page](https://appshunter.io/ios/app/note-book-app/id6756196494)

Capture and organize all your thoughts, tasks, and memories with a feature-rich note-taking application. Offers rich text, checklists, voice notes, and advanced organization tools. Secure your data with PIN and password protection, and easily back up your notes.

**Highlights:** Rich text and voice notes, Checklists and to-do lists, Customizable themes and wallpapers, Categories, folders, and tags, PIN and password protection, One-tap export and iCloud backup, Built-in calculator

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Compressor free?

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

### Is Note Book App free?

Note Book App is free to download, with no in-app purchases.

### Which has better reviews, PDF Compressor or Note Book App?

PDF Compressor is rated higher. PDF Compressor averages 5.0 out of 5 from 5 ratings, while Note Book App averages 3.0 from 2 ratings.

### Do PDF Compressor or Note Book App have ads?

Neither PDF Compressor nor Note Book App shows ads.

### Which is updated more often, PDF Compressor or Note Book App?

PDF Compressor ships an update every 3 months, and Note Book App every 4 days. Most recently, PDF Compressor was updated on October 30, 2026 and Note Book App on November 5, 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.*