# biotys vs Poop Teacher

The clearest difference is ads: biotys at none against Poop Teacher's shown. biotys also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). Poop Teacher's advantage is update cadence (every 4 days vs every 5 months). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

biotys ships an update every 5 months, Poop Teacher every 4 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | biotys | Poop Teacher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (5 ratings)](https://appshunter.io/ios/app/poop-teacher-stool-tracker/id6743986026/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | — | Ad-supported |
| Size | 12 MB | 41 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Amir Aiouaz](https://appshunter.io/developer/1462038680) | [YIZE LIAO](https://appshunter.io/developer/1511365129) |

## What reviewers say

### biotys

[App page](https://appshunter.io/ios/app/biotys/id6443545029)

**Features:** macOS Compatibility

**In-app purchases:** none


### Poop Teacher

[App page](https://appshunter.io/ios/app/poop-teacher-stool-tracker/id6743986026)

This app helps you track and analyze your digestive health by logging bowel movements. It uses the Bristol Stool Scale and color options for detailed recording, offering insights into trends and providing educational content. Secure sharing options are available for healthcare professionals.

**Highlights:** Bristol Stool Scale logging, Stool color tracking, One-touch recording, Historical data timeline, Trend analysis, Secure data sharing, Health education library

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is biotys free?

biotys is free to download, with no in-app purchases.

### Is Poop Teacher free?

Poop Teacher is free to download, with no in-app purchases.

### Do biotys or Poop Teacher have ads?

Poop Teacher shows ads; biotys does not.

### Which is updated more often, biotys or Poop Teacher?

biotys ships an update every 5 months, and Poop Teacher every 4 days. Most recently, biotys was updated on November 3, 2026 and Poop Teacher on November 4, 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.*