# Gut diary vs CocoLog

The clearest difference is in-app purchases: Gut diary at none against CocoLog's 3. Gut diary also leads on ads (none vs shown) and iOS requirement (10.0 vs 12.0). On price, update cadence and device support there is nothing between them.

Both are free to download. CocoLog sells 3 in-app purchases, starting at $0.99 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 11, 2026 respectively.

## The numbers

| Metric | Gut diary | CocoLog |
| --- | --- | --- |
| 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 | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | — |
| Size | 53 MB | 80 MB |
| Requires iOS | **10.0** | 12.0 |
| 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


### CocoLog

[App page](https://appshunter.io/ios/app/cocolog/id6446239288)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $0.99 | per month |
| Annual Premium | $12.99 | per year |
| Tip Jar | $1.99 | one-time |


## Frequently asked questions

### Is Gut diary free?

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

### Is CocoLog free?

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

### Do Gut diary or CocoLog have ads?

CocoLog shows ads; Gut diary does not.

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

Gut diary ships an update every 3 weeks, and CocoLog every 3 weeks. Most recently, Gut diary was updated on July 28, 2026 and CocoLog on September 11, 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.*