# Tudu vs CollaNote

The clearest difference is in-app purchases: Tudu at none against CollaNote's 4. Tudu also leads on iOS requirement (9.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CollaNote sells 4 one-off in-app purchases. Tudu asks for nothing beyond the download.

Tudu ships an update every 3 days, CollaNote every 6 days. The most recent releases landed on October 29, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Tudu | CollaNote |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (15K ratings)](https://appshunter.io/ios/app/collanote-notes-and-pdf-markup/id1540956268/reviews)** |
| Number of ratings | — | **15K** |
| Positive reviews | — | 73.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 days |
| Monetization | — | Free |
| Size | 6 MB | 229 MB |
| Requires iOS | **9.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Codermine](https://appshunter.io/developer/1064155863) | [Zauberberg Lab Company Limited](https://appshunter.io/developer/1693142923) |

## What reviewers say

### Tudu

[App page](https://appshunter.io/ios/app/tudu/id1167991671)

**Features:** macOS Compatibility

**In-app purchases:** none


### CollaNote

[App page](https://appshunter.io/ios/app/collanote-notes-and-pdf-markup/id1540956268)

This powerful note-taking app offers a rich set of tools for writing, PDF markup, and digital planning. Enhance your notes with over 25 pens, handwriting stabilization, and AI assistance. Collaborate in real-time and organize your work with unlimited papers and notebooks.

**Highlights:** 25+ pens and brushes, Handwriting stabilizer, PDF import and markup, Flashcard creation, Real-time collaboration, AI-powered tools, Unlimited papers and notebooks

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium Loyal Users | $6.95 | one-time |
| Premium: Time Limited Sale | $6.95 | one-time |
| Lifetime Premium Welcome Offer | $9.69 | one-time |
| Lifetime Premium | $13.90 | one-time |

**What reviewers like**

- 🚀 Very good writing app
- 🚀 Great app and easy to navigate
- 🚀 Excellent note taking app
- 👍 Amazing free note taking app
- 👍 Fantastic for teaching

**What reviewers complain about**

- 🐛 Glitching, crashing, and issues with writing tools
- 🐛 Inconsistent performance and bugs
- 🐛 Issues with PDF annotations and exports
- 🐛 Problems with organization and navigation
- 🐛 Frequent crashes and data loss

**Reported bugs**

- Pen and eraser issues after updates
- Freezing and crashing when deleting or moving notes
- Inconsistent behavior of favorite pen settings
- Incompatibility with older devices
- Login screen freezes

**Requested features**

- Add landscape mode support
- Improve text editing and formatting
- Enhance organization with nested folders
- Implement better backup and sync options
- Add more pen/pencil customization


## Frequently asked questions

### Is Tudu free?

Tudu is free to download, with no in-app purchases.

### Is CollaNote free?

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

### Do Tudu or CollaNote have ads?

Neither Tudu nor CollaNote shows ads.

### Which is updated more often, Tudu or CollaNote?

Tudu ships an update every 3 days, and CollaNote every 6 days. Most recently, Tudu was updated on October 29, 2026 and CollaNote on November 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.*