Bowel Habit Diary vs Unki
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bowel Habit Diary
Track your bowel movements and related health data. Log frequency, consistency, and medication intake. Analyze trends with graphs and protect your sensitive information with biometric security.
- Log bowel movement frequency and interval
- Record stool consistency and color
- Track medication intake
- View history in calendar and list formats
- Analyze data with graphs
- Biometric security (Touch ID/Face ID)
- iCloud sync across Apple devices
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- Check the number of days since your last bowel movement and your overall frequency (average interval). - When you have a bowel movement, simply tap an icon to record the date/time and amount (3 levels). - Receive notifications if there is no bowel movement for a selected period (1, 2, or 3 days). - Optionally record stool consistency (3 levels), color (3 levels), and notes. ※ - Record the date and time when you take medications such as laxatives. - Add past records by specifying the date and time. ※ - View your bowel movement history in a calendar format. ※ - Analyze your data by time of day or day of the week for a selected period and view it in graphs. ※ - Protect your records with Touch ID or Face ID. ※ - View past bowel movement history in a list format. 《Apple Watch only》 - Records are synced and managed via iCloud across Apple Watch, iPhone, and iPad. For example, you can record on your Apple Watch and review the calendar on your iPhone or iPad. Incorrect records can be deleted from either device. - Direct recording mode that connects Apple Watch directly to iPhone without using iCloud. 《Apple Watch only》 ※ Available on iPhone/iPad only
Unki
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Unki is a simple bowel movement tracker for everyday personal logging. You do not need to write long notes. Choose the stool shape that feels closest: Pebbly, Normal, Soft, or Watery. Each record is saved with the time, so you can look back later. The Today screen shows your daily count at a glance. The calendar helps you review each day, and the detail view lets you edit the time or delete a record when needed. The Trends screen shows simple summaries, including days with records, days without records, average count, stool shape mix, common time of day, and daily record trends. Unki also supports Apple Watch. You can record from your watch and review the history later on your iPhone. A watch face complication can open the Watch app quickly. Main features: - Quick stool shape logging - Daily bowel movement count - Calendar history - Edit record time - Delete records - Simple trend summaries - Stool shape mix - Common time-of-day view - Apple Watch recording - Watch face complication shortcut Unki is not a medical diagnosis app and does not provide medical advice. Please consult a healthcare professional if you have ongoing symptoms or health concerns.
Screenshots
Verdict
The clearest difference is price: Unki at Free against Bowel Habit Diary's $1.99. Unki also leads on update cadence (weekly vs every 6 weeks). On ads, in-app purchases, device support and iOS requirement 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
Unki is free to download; Bowel Habit Diary costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Bowel Habit Diary ships an update every 6 weeks, Unki weekly. The most recent releases landed on September 9, 2026 and September 24, 2026 respectively.
| Parameter | Bowel Habit Diary | Unki |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.8 (4 ratings) — better | — |
| Positive reviews | 69.2% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 13 MB |
| Age rating | 12+ | 4+ |
| Developer | Shinya Taguchi | Daisaku Mori |
In-app purchases
Bowel Habit Diary
No in-app purchases
Unki
No in-app purchases








