# Cognitive Diary vs MySanity

The clearest difference is in-app purchases: MySanity at none against Cognitive Diary's 2. Cognitive Diary's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Cognitive Diary ships an update fortnightly, MySanity every 2 months. The most recent releases landed on September 28, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Cognitive Diary | MySanity |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 60 MB | 63 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Vitalii Kovalov](https://appshunter.io/developer/1864691271) | [MySanity LLC](https://appshunter.io/developer/1867334246) |

## What reviewers say

### 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 |


### MySanity

[App page](https://appshunter.io/ios/app/mysanity/id6760779206)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cognitive Diary free?

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

### Is MySanity free?

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

### Do Cognitive Diary or MySanity have ads?

Neither Cognitive Diary nor MySanity shows ads.

### Which is updated more often, Cognitive Diary or MySanity?

Cognitive Diary ships an update fortnightly, and MySanity every 2 months. Most recently, Cognitive Diary was updated on September 28, 2026 and MySanity on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*