# Gut diary vs MoodLog

The clearest difference is review sentiment: MoodLog at 80% against Gut diary's 17%. Gut diary's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. MoodLog sells 2 in-app purchases, starting at $2.49 per month. Gut diary asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on July 28, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Gut diary | MoodLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/gut-diary/id1455072067/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 16.7% of reviews | **80.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 53 MB | 7 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Keietsu Yasuhara](https://appshunter.io/developer/378538320) | [Mieko Komatsu](https://appshunter.io/developer/1537355602) |

## What reviewers say

### Gut diary

[App page](https://appshunter.io/ios/app/gut-diary/id1455072067)

Track your daily physical, psychological, and social activities to understand their impact on your gut health. Record bowel habits, diet, sleep, exercise, and even moments of happiness. Sync with health data to identify patterns and contributing factors to abdominal comfort.

**Highlights:** Bowel habit tracking, Diet logging, Sleep cycle monitoring, Exercise recording, Social activity logging, Heart rate synchronization, Abdominal pain and stool shape entry

**Features:** macOS Compatibility

**In-app purchases:** none


### MoodLog

[App page](https://appshunter.io/ios/app/moodlog-simple/id1555641803)

Easily log your daily mood, sleep, and physical condition. Track patterns with calendar and graph views. Customize what you record and set reminders to maintain consistency.

**Highlights:** Mood and sleep logging, Calendar and graph visualization, Customizable recording items, Reminder function, Dark mode support, Search function

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.49 | per month |
| Annual Premium | $21.49 | per year |


## Frequently asked questions

### Is Gut diary free?

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

### Is MoodLog free?

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

### Do Gut diary or MoodLog have ads?

MoodLog shows ads; Gut diary does not.

### Which is updated more often, Gut diary or MoodLog?

Gut diary ships an update every 3 weeks, and MoodLog every 3 weeks. Most recently, Gut diary was updated on July 28, 2026 and MoodLog on September 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.*