# Drawboard PDF Annotate, Markup vs Improvement OS

The clearest difference is iOS requirement: Improvement OS at 15.1 against Drawboard PDF Annotate, Markup's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Drawboard PDF Annotate, Markup sells 8 in-app purchases, starting at $5.99 per month and Improvement OS sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Drawboard PDF Annotate, Markup | Improvement OS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2K ratings)](https://appshunter.io/ios/app/drawboard-pdf-annotate-markup/id1086503728/reviews)** | — |
| Number of ratings | **2K** | — |
| Positive reviews | 64.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 98 MB | 47 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Drawboard Pty Ltd](https://appshunter.io/developer/1081203672) | [Swaraj Papadkar](https://appshunter.io/developer/6772548795) |

## What reviewers say

### Drawboard PDF Annotate, Markup

[App page](https://appshunter.io/ios/app/drawboard-pdf-annotate-markup/id1086503728)

Enhance your PDF workflow with powerful annotation and markup tools. This app offers a dynamic and intuitive experience for editing, drawing, and adding text to your documents. Access your work across multiple devices and collaborate in real-time.

**Highlights:** Dynamic PDF annotation tools, Cross-platform access and cloud sync, Real-time collaboration, Insert text, images, lines, and shapes, Convert images to PDF, Redact sensitive information (Pro), Measurement tools (Pro)

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lite | $5.99 | per month |
| Pro Plus | $9.99 | per month |
| Pro Unlimited | $18.99 | per month |
| Pro Lite | $49.99 | per year |
| Pro Plus | $83.90 | per year |
| Pro Unlimited | $159.99 | per year |
| Pro Plus | $10.00 | one-time |
| Pro Unlimited | $20.00 | one-time |

**What reviewers like**

- 🚀 Excellent PDF annotation tools
- 👍 Convenient cross-platform sync
- 🚀 Fast and responsive
- 👍 Great for students and professionals
- 🚀 Smooth writing experience with Apple Pencil

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 🔒 Cloud storage limitations
- 💰 Expensive subscription model
- 🔍 Missing search and bookmark features
- 🔧 Inconsistent functionality between platforms

**Reported bugs**

- Annotations not syncing properly between devices
- Unexpected loss of work and unsaved changes
- Scrolling and page navigation issues
- Compatibility problems with certain PDF files
- Text input box disappearing after scrolling

**Requested features**

- Add page flattening and form filling options
- Improve eraser tool and precision
- Implement a dark mode
- Provide better organization and folder support
- Add more customization options for tools and UI


### Improvement OS

[App page](https://appshunter.io/ios/app/improvement-os/id6772548583)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ImprovementOS | $6.99 | per month |
| ImprovementOS | $29.99 | per year |


## Frequently asked questions

### Is Drawboard PDF Annotate, Markup free?

Drawboard PDF Annotate, Markup is free to download, with in-app purchases available.

### Is Improvement OS free?

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

### Do Drawboard PDF Annotate, Markup or Improvement OS have ads?

Neither Drawboard PDF Annotate, Markup nor Improvement OS 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.*