# Bowel Habit Diary vs Unki

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.

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 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Bowel Habit Diary | Unki |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/bowel-habit-diary/id1542441515/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 69.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Paid | — |
| Size | 10 MB | 13 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Shinya Taguchi](https://appshunter.io/developer/1513094701) | [Daisaku Mori](https://appshunter.io/developer/1892935206) |

## What reviewers say

### Bowel Habit Diary

[App page](https://appshunter.io/ios/app/bowel-habit-diary/id1542441515)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Unki

[App page](https://appshunter.io/ios/app/unki-bowel-tracker/id6777927621)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked 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 September 25, 2026 and Unki on September 24, 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.*