# SyncSpace vs Write on PDF

The clearest difference is rating: Write on PDF at 4.9 against SyncSpace's 3.6. Write on PDF also leads on monetization model (freemium vs subscription) and update cadence (every 10 days vs monthly). SyncSpace's advantage is iOS requirement (12.0 vs 16.4). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. SyncSpace sells 2 in-app purchases, starting at $2.99 per month and Write on PDF sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Write on PDF holds the better App Store score, 4.9 against 3.6. Both are backed by a comparable volume of ratings — 7 and 19 respectively.

SyncSpace ships an update monthly, Write on PDF every 10 days. The most recent releases landed on September 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SyncSpace | Write on PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (7 ratings)](https://appshunter.io/ios/app/syncspace/id408672838/reviews) | **[4.9 (19 ratings)](https://appshunter.io/ios/app/write-on-pdf-white-board/id6475992095/reviews)** |
| Number of ratings | 7 | **19** |
| Positive reviews | 53.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Subscription | **Freemium** |
| Size | 22 MB | 260 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [The Infinite Kind Limited](https://appshunter.io/developer/367748821) | [Kairoos Solutions SL](https://appshunter.io/developer/978066434) |

## What reviewers say

### SyncSpace

[App page](https://appshunter.io/ios/app/syncspace/id408672838)

This app offers a collaborative digital whiteboard with infinite zoom capabilities. Users can sketch ideas, share them in real-time with others over the internet, and export them in various formats. It's designed for seamless group brainstorming and visual idea exploration.

**Highlights:** Infinite zoom drawing space, Real-time collaboration, Shareable via link, Local network discovery (Bonjour), Export as PDF, Embeddable on web pages, Palm/wrist protection

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Collaboration Service | $2.99 | per month |
| Annual Collaboration Service | $24.99 | per year |

**What reviewers like**

- ✨ Infinite canvas space
- 🤝 Great for collaboration
- 🎨 Good color options (mentioned by some)
- 💡 User-friendly interface (mentioned by some)
- 🚀 Smooth drawing experience (mentioned by some)

**What reviewers complain about**

- 🐛 Laggy performance
- 🐛 Crashing frequently
- 🐛 Poor Apple Pencil support
- 🐛 Palm rejection issues
- 🐛 Eraser not working

**Reported bugs**

- Laggy performance
- App crashes
- Palm rejection not working
- Apple Pencil not compatible
- Eraser not working

**Requested features**

- Custom color option
- More brush options
- Blender tool
- Shapes (circles, squares)
- Stickers or skins for cuter collaborations


### Write on PDF

[App page](https://appshunter.io/ios/app/write-on-pdf-white-board/id6475992095)

This app offers a digital whiteboard experience with advanced drawing tools and PDF integration. It allows for freeform sketching, note-taking, and organization with unlimited notebooks and templates. Collaborate or work independently with enhanced security and automatic backups.

**Highlights:** Advanced drawing tools with 7 ink types, Add text boxes, photos, and paper styles, Over 200 templates, Unlimited notebooks and folders, PDF import and export, Apple Pencil and stylus support, Folder and app-wide passcodes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features and AI | $1.99 | per month |
| Full Pro Unlock | $5.99 | one-time |


## Frequently asked questions

### Is SyncSpace free?

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

### Is Write on PDF free?

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

### Which has better reviews, SyncSpace or Write on PDF?

Write on PDF is rated higher. SyncSpace averages 3.6 out of 5 from 7 ratings, while Write on PDF averages 4.9 from 19 ratings.

### Do SyncSpace or Write on PDF have ads?

Neither SyncSpace nor Write on PDF shows ads.

### Which is updated more often, SyncSpace or Write on PDF?

SyncSpace ships an update monthly, and Write on PDF every 10 days. Most recently, SyncSpace was updated on September 30, 2026 and Write on PDF on October 9, 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.*