# Stool Checker vs CALME あいづ 公式アプリ

The clearest difference is in-app purchases: CALME あいづ 公式アプリ at none against Stool Checker's 4. CALME あいづ 公式アプリ also leads on ads (none vs shown). Stool Checker's advantage is update cadence (every 6 weeks vs every 37 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Stool Checker sells 4 one-off in-app purchases. CALME あいづ 公式アプリ asks for nothing beyond the download.

Stool Checker ships an update every 6 weeks, CALME あいづ 公式アプリ every 37 months. The most recent releases landed on September 19, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Stool Checker | CALME あいづ 公式アプリ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (9 ratings)](https://appshunter.io/ios/app/stool-checker/id542571748/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 82.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 37 months |
| Monetization | Free with in-app purchases | — |
| Size | 120 MB | 16 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZAIZEN Co., Ltd.](https://appshunter.io/developer/380406945) | [SAORI ANAZAWA](https://appshunter.io/developer/1447876827) |

## What reviewers say

### Stool Checker

[App page](https://appshunter.io/ios/app/stool-checker/id542571748)

Track your bowel movements and monitor digestive health. Easily log entries, view historical data in a calendar, and add notes about your condition. Features include privacy locking and multi-account support.

**Highlights:** Log bowel movement times, Calendar view of records, Add text memos for condition, Privacy locking, Multi-account system

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ぷーちゃん | $0.99 | one-time |
| ブリリーナ | $0.99 | one-time |
| うんこさん | $0.99 | one-time |
| 広告非表示 | $2.99 | one-time |


### CALME あいづ 公式アプリ

[App page](https://appshunter.io/ios/app/calme/id1447876828)

**In-app purchases:** none


## Frequently asked questions

### Is Stool Checker free?

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

### Is CALME あいづ 公式アプリ free?

CALME あいづ 公式アプリ is free to download, with no in-app purchases.

### Do Stool Checker or CALME あいづ 公式アプリ have ads?

Stool Checker shows ads; CALME あいづ 公式アプリ does not.

### Which is updated more often, Stool Checker or CALME あいづ 公式アプリ?

Stool Checker ships an update every 6 weeks, and CALME あいづ 公式アプリ every 37 months. Most recently, Stool Checker was updated on September 19, 2026 and CALME あいづ 公式アプリ on September 12, 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.*