Comparison

Bowel Habit Diary vs Unki

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

- 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

About

Unki

Features
Read full description

Keep a simple record of your bowel movements with Unki! Choose the stool type that best matches each visit: hard pellets, normal, soft, or watery. Your record is saved with its date and time, without long forms to fill in. FEATURES • Record bowel movements with a tap • Review daily entries and your calendar • Edit the date, time, and stool type • View trends over time • Record from Apple Watch BACKUP AND SYNC • Optional iCloud sync: turn it on in Settings to sync entries across devices signed in to the same Apple Account via your private CloudKit database. • JSON backup: export your entries to a file you can keep. • Restore: import a saved backup, keeping existing entries and avoiding duplicate IDs. iCloud sync is optional. You can continue saving entries on your device without enabling it. We recommend keeping a backup before first-time sync or switching devices. Unki! is for personal record-keeping and does not provide medical diagnoses or treatment.

Screenshots

Bowel Habit Diary4 screens
Unki4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

Bowel Habit Diary ships an update every 6 weeks, Unki weekly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
Bowel Habit Diary versus Unki: the parameters behind the verdict, then further details
ParameterBowel Habit DiaryUnki
Price$1.99Free — better
Rating4.8 (4 ratings) — better—
Positive reviews69.2% of reviews—
Number of ratings4 — better—
Update frequencyEvery 6 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, Apple Watch — betteriPhone, Apple Watch
Requires iOS17.617.0 — better
Further details — not scored
Size10 MB13 MB
Age rating12+4+
DeveloperShinya TaguchiDaisaku Mori

In-app purchases

None

Bowel Habit Diary

No in-app purchases

None

Unki

No in-app purchases

Questions

Is Bowel Habit Diary free?
Bowel Habit Diary costs $1.99, with no in-app purchases.
Is Unki free?
Unki is free to download, with no in-app purchases.
Do Bowel Habit Diary or Unki have ads?
Neither Bowel Habit Diary nor Unki shows ads.
Which is updated more often, Bowel Habit Diary or Unki?
Bowel Habit Diary ships an update every 6 weeks, and Unki weekly. Most recently, Bowel Habit Diary was updated on November 3, 2026 and Unki on November 5, 2026.

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