# tatter vs Cognize

The clearest difference is iOS requirement: tatter at 11.0 against Cognize's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. tatter sells 1 one-off in-app purchase and Cognize sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

tatter ships an update every 8 days, Cognize weekly. The most recent releases landed on November 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | tatter | Cognize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.4K ratings)](https://appshunter.io/ios/app/tatter/id364899302/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 71.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 110 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Tatter Corporation](https://appshunter.io/developer/1436465726) | [Andrea Tesoro](https://appshunter.io/developer/1799709221) |

## What reviewers say

### tatter

[App page](https://appshunter.io/ios/app/tatter/id364899302)

Organize your life, work, and thoughts with digital notebooks and moodboards. Combine text, images, and links to arrange ideas, to-dos, and web bookmarks in a colorful and tactile way. Supports various layouts, gestures, and sharing options.

**Highlights:** Create unlimited notebooks and moodboards, Combine text, images, and web links, Arrange items with different colors and layouts, Save web bookmarks graphically, Multitouch gestures for fast editing, Voice dictation for writing notes

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Notebooks | $4.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 💡 Colorful and visually appealing
- 🚀 Simple and straightforward
- 🔒 Secure storage of notes
- 👍 Useful for quick reminders and to-do lists

**What reviewers complain about**

- 🐛 Occasional crashes or freezes
- 🔒 Limited customization options
- 🔒 Restricted number of notebooks without paid upgrade
- 🐛 Notes sometimes disappear or get lost after updates
- 🔒 No syncing between devices

**Reported bugs**

- App crashes when trying to add photos
- Notes randomly disappear or get corrupted
- Inability to reopen certain notebooks after updates
- Font size changes unexpectedly
- Navigation issues when turning device orientation

**Requested features**

- Allow more customization of notes (fonts, colors, formatting)
- Add ability to sync notes across devices
- Improve stability and prevent data loss after updates
- Provide more notebooks/pages without paid upgrade
- Add widget support for quick access to notes


### Cognize

[App page](https://appshunter.io/ios/app/cognize-habit-tracker-and-focus/id6742746066)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan — $3.99 per month | $2.99 | per month |
| Yearly Plan — $24.99 per year | $34.99 | per year |


## Frequently asked questions

### Is tatter free?

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

### Is Cognize free?

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

### Do tatter or Cognize have ads?

Neither tatter nor Cognize shows ads.

### Which is updated more often, tatter or Cognize?

tatter ships an update every 8 days, and Cognize weekly. Most recently, tatter was updated on November 1, 2026 and Cognize on October 7, 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.*