# Mind Trace vs Cognitive Diary

The clearest difference is in-app purchases: Mind Trace at none against Cognitive Diary's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Cognitive Diary sells 2 in-app purchases, starting at $0.99 per month. Mind Trace asks for nothing beyond the download.

Mind Trace ships an update every 10 days, Cognitive Diary fortnightly. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Mind Trace | Cognitive Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Size | 43 MB | 60 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [HyunSeok Park](https://appshunter.io/developer/1724015501) | [Vitalii Kovalov](https://appshunter.io/developer/1864691271) |

## What reviewers say

### Mind Trace

[App page](https://appshunter.io/ios/app/mind-trace-ai-mood-tracker/id6747179265)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cognitive Diary

[App page](https://appshunter.io/ios/app/cognitive-diary/id6757118591)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO | $0.99 | per month |
| PRO | $9.99 | per year |


## Frequently asked questions

### Is Mind Trace free?

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

### Is Cognitive Diary free?

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

### Do Mind Trace or Cognitive Diary have ads?

Neither Mind Trace nor Cognitive Diary shows ads.

### Which is updated more often, Mind Trace or Cognitive Diary?

Mind Trace ships an update every 10 days, and Cognitive Diary fortnightly. Most recently, Mind Trace was updated on October 17, 2026 and Cognitive Diary on October 13, 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.*