# Human Digestive System vs Mechanical Studio(Full)

The clearest difference is update cadence: Mechanical Studio(Full) at fortnightly against Human Digestive System's every 18 months. Mechanical Studio(Full) also leads on chart position (#186 vs unranked) and device support (3 vs 1). Human Digestive System's advantage is price ($0.99 vs $4.99). On ads and in-app purchases there is nothing between them.

Human Digestive System costs $0.99 and Mechanical Studio(Full) $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Human Digestive System ships an update every 18 months, Mechanical Studio(Full) fortnightly. The most recent releases landed on October 18, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Human Digestive System | Mechanical Studio(Full) |
| --- | --- | --- |
| Price | **$0.99** | $4.99 |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/mechanical-studiofullkids/id6467083743/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Fortnightly** |
| Monetization | — | Paid |
| Best chart rank | — | **#186** |
| Size | 401 MB | 77 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) | [Labo Lado Co., Ltd.](https://appshunter.io/developer/475943829) |

## What reviewers say

### Human Digestive System

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Mechanical Studio(Full)

[App page](https://appshunter.io/ios/app/mechanical-studiofullkids/id6467083743)

**Currently charting:** #186 Top Paid · Education (US App Store)

This app guides children to build and understand mechanical devices through interactive tutorials and free creation. It offers a wide range of parts and materials, allowing kids to explore physics principles and unleash their creativity in mechanical design.

**Highlights:** Extensive mechanical device tutorials, Learn principles through imitation and practice, Variety of parts and materials, Free creation of custom devices, Add appearance and decoration, Game and special effects components, Share creations online

**In-app purchases:** none


## Frequently asked questions

### Is Human Digestive System free?

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

### Is Mechanical Studio(Full) free?

Mechanical Studio(Full) costs $4.99, with no in-app purchases.

### Do Human Digestive System or Mechanical Studio(Full) have ads?

Neither Human Digestive System nor Mechanical Studio(Full) shows ads.

### Which is updated more often, Human Digestive System or Mechanical Studio(Full)?

Human Digestive System ships an update every 18 months, and Mechanical Studio(Full) fortnightly. Most recently, Human Digestive System was updated on October 18, 2026 and Mechanical Studio(Full) on October 3, 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.*