# Fast Diary vs Reflect AI Journal Diary

The clearest difference is ads: Reflect AI Journal Diary at none against Fast Diary's shown. Reflect AI Journal Diary also leads on update cadence (every 9 days vs every 3 months) and device support (4 vs 2). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Fast Diary sells 1 one-off in-app purchase and Reflect AI Journal Diary sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Fast Diary ships an update every 3 months, Reflect AI Journal Diary every 9 days. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fast Diary | Reflect AI Journal Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/reflect-ai-journal-diary/id6762427801/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | — | Freemium |
| Size | 89 MB | 72 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | +4 |
| Developer | [Haruya Nakamura](https://appshunter.io/developer/1482524589) | [Ala Eddine Boukhili](https://appshunter.io/developer/1883604407) |

## What reviewers say

### Fast Diary

[App page](https://appshunter.io/ios/app/fast-diary/id1502008283)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad hiding option | $0.99 | one-time |


### Reflect AI Journal Diary

[App page](https://appshunter.io/ios/app/reflect-ai-journal-diary/id6762427801)

This app helps you understand your life by analyzing your journal entries, voice memos, and photos. It uses AI to surface patterns in your mood, relationships, and growth, while ensuring your data remains private and encrypted.

**Highlights:** AI-driven pattern analysis, Voice memo transcription, Photo journaling with text extraction, Mood and happiness tracking, MBTI personality analysis, Encrypted privacy and security, Collaborative 'Buddy Mode'

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly — Loyalty Offer | $19.99 | per year |
| Premium Yearly | $29.99 | per year |
| Premium Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Fast Diary free?

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

### Is Reflect AI Journal Diary free?

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

### Do Fast Diary or Reflect AI Journal Diary have ads?

Fast Diary shows ads; Reflect AI Journal Diary does not.

### Which is updated more often, Fast Diary or Reflect AI Journal Diary?

Fast Diary ships an update every 3 months, and Reflect AI Journal Diary every 9 days. Most recently, Fast Diary was updated on October 13, 2026 and Reflect AI Journal Diary 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.*