Gut diary vs CocoLog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gut diary
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.
- Bowel habit tracking
- Diet logging
- Sleep cycle monitoring
- Exercise recording
- Social activity logging
- Heart rate synchronization
- Abdominal pain and stool shape entry
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The stress or sleeping disturbance are closely associated with the changes in heart rate and result in affecting abdominal comfort, or bowel habits. “Gut diary” will help you lead healthier and happier life by tracking your physical, psychological, and social activities. You can record the daily bowel habits, diet, sleeping cycle, exercise and other social activity details on the app and synchronize with iPhone Health Kit or other wearable devices to obtain the heart rate data. By tracking your total daily activity, you maybe able to discover the certain pattern of abdominal conditions and identify the influence factor. You can also record a “little happiness” you have experienced during the day which can be a positive factor to your bowel activity. You have an easy access to the screen and can record several data at the same time. You can enter the abdominal pain and stool shape easily from Apple Watch. Please note that it is not possible to diagnose or treat someone with this application.
CocoLog
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This application allows you to easily record your mood and sleep. You can look back with a calendar and graph. Why don't you keep a record and check your pattern objectively? [Sharing function] You can instantly share your records with the "CocoSupporters" app. [Recommended when you...] are feeling down lately. having mood swings. are easily irritated. want to check your mood changes objectively. have an unstable sleep rhythm want to easily record your daily physical condition. want to keep track of what medications you’ve taken. want to check the relationship between mood, appetite and alcohol consumption. want to keep a diary or notes. [Recordable data] ・Morning, afternoon, and evening moods ・Sleep time ・Physical condition ・Medication ・Appetite ・Drinking ・Exercise ・Bathing ・Physiology ・Memo [Premium Plan] Cat Mood Icons ad-free text output PDF output (Graphs by month. Available on iPhone with iOS 15 or later. ) [Other features] Easy search function Reminder function to prevent forgetting to input data No user registration required Dark mode support is easy on the eyes even in dark areas ---------------- License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Gut diary | CocoLog |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) — better | — |
| Positive reviews | 16.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 53 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | Keietsu Yasuhara | Mieko Komatsu |
In-app purchases
Gut diary
No in-app purchases
CocoLog
- Monthly Premium$0.991 Month
- Annual Premium$12.991 Year
- Tip Jar$1.99









