# Diary.Chat vs Supplemental

The clearest difference is in-app purchases: Diary.Chat at none against Supplemental's 2. Diary.Chat also leads on ads (none vs shown). Supplemental's advantage is ratings volume (9 vs 1) and device support (3 vs 1). On price, rating, update cadence and iOS requirement there is nothing between them.

Both are free to download. Supplemental sells 2 in-app purchases, starting at $8.99 per month. Diary.Chat asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Diary.Chat against 5.0 for Supplemental. That said, the two scores are not equally well evidenced: Supplemental has 9 ratings behind it against 1, so its average is the more settled of the two.

Diary.Chat ships an update every 8 days, Supplemental every 11 days. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Diary.Chat | Supplemental |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/diarychat/id6737240897/reviews) | [5.0 (9 ratings)](https://appshunter.io/ios/app/supplemental-therapy-journal/id6757550541/reviews) |
| Number of ratings | 1 | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 8 days** | Every 11 days |
| Monetization | **Free** | Freemium |
| Size | 4 MB | 54 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Underscore LLC](https://appshunter.io/developer/1775499124) | [Andrew Mills](https://appshunter.io/developer/1864812312) |

## What reviewers say

### Diary.Chat

[App page](https://appshunter.io/ios/app/diarychat/id6737240897)

This app helps you track your mood and thoughts with AI-powered insights and tailored prompts. Build a journaling habit with fun features and review daily summaries to understand your emotional patterns and improve mental well-being.

**Highlights:** Tailored journaling prompts, AI-driven mood and thought analysis, Daily summaries of emotional patterns, Gamified habit building (reminders, streaks, achievements), Secure and private data storage, Voice recording and image support

**Features:** macOS Compatibility

**In-app purchases:** none


### Supplemental

[App page](https://appshunter.io/ios/app/supplemental-therapy-journal/id6757550541)

Capture thoughts and build positive habits with AI-powered suggestions. This app helps you track emotional patterns, reinforce insights, and offers a guided phone lockout for focused reflection.

**Highlights:** Voice and text reflection recording, AI-generated habit suggestions, Emotional pattern tracking, Guided phone lockout mode, Insight reinforcement, Pro features: Insight Mode, Session Briefs, AI micro-practices

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supplemental Pro Monthly | $8.99 | per month |
| Supplemental Pro Yearly | $59.99 | per year |


## Frequently asked questions

### Is Diary.Chat free?

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

### Is Supplemental free?

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

### Which has better reviews, Diary.Chat or Supplemental?

Diary.Chat and Supplemental are both rated 5.0 out of 5 on the App Store, from 1 and 9 ratings respectively.

### Do Diary.Chat or Supplemental have ads?

Supplemental shows ads; Diary.Chat does not.

### Which is updated more often, Diary.Chat or Supplemental?

Diary.Chat ships an update every 8 days, and Supplemental every 11 days. Most recently, Diary.Chat was updated on October 8, 2026 and Supplemental on October 24, 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.*