# Human Digestive System vs micro by THIX

The clearest difference is device support: micro by THIX at 3 against Human Digestive System's 1. micro by THIX also leads on iOS requirement (10.0 vs 12.0). Human Digestive System's advantage is price ($0.99 vs $1.99). On update cadence, ads and in-app purchases there is nothing between them.

Human Digestive System costs $0.99 and micro by THIX $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Human Digestive System ships an update every 18 months, micro by THIX every 10 months. The most recent releases landed on December 22, 2025 and September 23, 2026 respectively.

## The numbers

| Metric | Human Digestive System | micro by THIX |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | — | **[4.1 (28 ratings)](https://appshunter.io/ios/app/micro-by-thix/id1458231552/reviews)** |
| Number of ratings | — | **28** |
| Positive reviews | — | 61.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 10 months** |
| Monetization | — | Paid |
| Size | 401 MB | 88 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) | [THIX LLC](https://appshunter.io/developer/433373206) |

## What reviewers say

### Human Digestive System

[App page](https://appshunter.io/ios/app/human-digestive-system/id983535092)

**Features:** macOS Compatibility

**In-app purchases:** none


### micro by THIX

[App page](https://appshunter.io/ios/app/micro-by-thix/id1458231552)

Simulate the creation and evolution of microorganisms. Explore natural selection, mutation, and inter-microbial conflict in a dynamic, educational sandbox. Experiment with environmental factors and genetic traits to discover new life forms.

**Highlights:** Create bacteria, viruses, and fungi, Observe natural selection, Learn microbiology interactively, Edit genetic attributes, Experiment with environmental factors, Collect microbes in a library

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

**In-app purchases:** none


## Frequently asked questions

### Is Human Digestive System free?

Human Digestive System costs $0.99, with no in-app purchases.

### Is micro by THIX free?

micro by THIX costs $1.99, with no in-app purchases.

### Do Human Digestive System or micro by THIX have ads?

Neither Human Digestive System nor micro by THIX shows ads.

### Which is updated more often, Human Digestive System or micro by THIX?

Human Digestive System ships an update every 18 months, and micro by THIX every 10 months. Most recently, Human Digestive System was updated on December 22, 2025 and micro by THIX on September 23, 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.*