# ONE+ Mood Tracker vs Mood Diary & AI Stamps

The clearest difference is in-app purchases: ONE+ Mood Tracker at none against Mood Diary & AI Stamps's 3. Mood Diary & AI Stamps's advantage is update cadence (every 5 days vs every 3 weeks) and iOS requirement (15.5 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Mood Diary & AI Stamps sells 3 in-app purchases, starting at $1.99 per month. ONE+ Mood Tracker asks for nothing beyond the download.

ONE+ Mood Tracker ships an update every 3 weeks, Mood Diary & AI Stamps every 5 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | ONE+ Mood Tracker | Mood Diary & AI Stamps |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 9 MB | 39 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Batuhan Demir](https://appshunter.io/developer/1872520662) | [Daisuke Kihara](https://appshunter.io/developer/6781123777) |

## What reviewers say

### ONE+ Mood Tracker

[App page](https://appshunter.io/ios/app/one-plus-mood-tracker/id6759794739)

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

**In-app purchases:** none


### Mood Diary & AI Stamps

[App page](https://appshunter.io/ios/app/mood-diary-and-ai-stamps/id6781123745)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plan A | $1.99 | per month |
| Plan B | $1.99 | per month |
| Plan C | $2.99 | per month |


## Frequently asked questions

### Is ONE+ Mood Tracker free?

ONE+ Mood Tracker is free to download, with no in-app purchases.

### Is Mood Diary & AI Stamps free?

Mood Diary & AI Stamps is free to download, with in-app purchases available.

### Do ONE+ Mood Tracker or Mood Diary & AI Stamps have ads?

Neither ONE+ Mood Tracker nor Mood Diary & AI Stamps shows ads.

### Which is updated more often, ONE+ Mood Tracker or Mood Diary & AI Stamps?

ONE+ Mood Tracker ships an update every 3 weeks, and Mood Diary & AI Stamps every 5 days. Most recently, ONE+ Mood Tracker was updated on October 25, 2026 and Mood Diary & AI Stamps on October 25, 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.*