# Diary vs Harmony

The clearest difference is in-app purchases: Harmony at none against Diary's 1. Harmony also leads on update cadence (monthly vs every 7 months) and iOS requirement (13.4 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Diary sells 1 in-app purchase, starting at $0.99 per month. Harmony asks for nothing beyond the download.

Diary ships an update every 7 months, Harmony monthly. The most recent releases landed on August 30, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | Diary | Harmony |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/diary-cbt-notes/id1661301401/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | Freemium | — |
| Size | 20 MB | 23 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ivan Medvedev](https://appshunter.io/developer/1661301403) | [ООО "БЕТА МАРКЕТИНГ"](https://appshunter.io/developer/1716727734) |

## What reviewers say

### Diary

[App page](https://appshunter.io/ios/app/diary-cbt-notes/id1661301401)

This app helps you track your thoughts, emotions, and behaviors to understand and change unhelpful patterns. It's a tool for developing coping strategies and improving overall well-being through cognitive behavioral therapy techniques.

**Highlights:** Record events, thoughts, and emotions, Identify cognitive distortions, Track behaviors and body reactions, Develop rational responses, Monitor progress over time, Set mental health goals

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per month |


### Harmony

[App page](https://appshunter.io/ios/app/harmony-mental-assistant/id6472183346)

**In-app purchases:** none


## Frequently asked questions

### Is Diary free?

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

### Is Harmony free?

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

### Do Diary or Harmony have ads?

Neither Diary nor Harmony shows ads.

### Which is updated more often, Diary or Harmony?

Diary ships an update every 7 months, and Harmony monthly. Most recently, Diary was updated on August 30, 2026 and Harmony on May 19, 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.*