# Stool Checker vs エコー写真

Stool Checker and エコー写真 both sit at 4.7 stars, but that hides the real split: 83% of Stool Checker's written reviews are positive against 41% of エコー写真's. Stool Checker also leads on iOS requirement (12.0 vs 18.0). エコー写真's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Stool Checker sells 4 one-off in-app purchases. エコー写真 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Stool Checker against 4.7 for エコー写真. Both are backed by a comparable volume of ratings — 9 and 11 respectively. Written reviews are what separate them: 83% of Stool Checker's written reviews are positive against 41% of エコー写真's.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Stool Checker | エコー写真 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (9 ratings)](https://appshunter.io/ios/app/stool-checker/id542571748/reviews) | [4.7 (11 ratings)](https://appshunter.io/ios/app/id1610083503/reviews) |
| Number of ratings | 9 | **11** |
| Positive reviews | **82.6% of reviews** | 40.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 120 MB | 71 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ZAIZEN Co., Ltd.](https://appshunter.io/developer/380406945) | [ROLLCAKE Inc.](https://appshunter.io/developer/789614906) |

## 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 |


### エコー写真

[App page](https://appshunter.io/ios/app/id1610083503)

**In-app purchases:** none


## Frequently asked questions

### Is Stool Checker free?

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

### Is エコー写真 free?

エコー写真 is free to download, with no in-app purchases.

### Which has better reviews, Stool Checker or エコー写真?

Stool Checker and エコー写真 are both rated 4.7 out of 5 on the App Store, from 9 and 11 ratings respectively.

### Do Stool Checker or エコー写真 have ads?

Stool Checker shows ads; エコー写真 does not.

### Which is updated more often, Stool Checker or エコー写真?

Stool Checker ships an update every 6 weeks, and エコー写真 every 6 weeks. Most recently, Stool Checker was updated on October 3, 2026 and エコー写真 on October 15, 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.*