# Stemi Lab vs MIT App Inventor

The clearest difference is update cadence: Stemi Lab at monthly against MIT App Inventor's every 3 months. Stemi Lab also leads on iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Stemi Lab ships an update monthly, MIT App Inventor every 3 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Stemi Lab | MIT App Inventor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.6 (18 ratings)](https://appshunter.io/ios/app/mit-app-inventor/id1422709355/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | — | 19.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | — | Free |
| Size | 10 MB | 49 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [STEMI d.o.o.](https://appshunter.io/developer/1177093745) | [Massachusetts Institute of Technology](https://appshunter.io/developer/353590322) |

## What reviewers say

### Stemi Lab

[App page](https://appshunter.io/ios/app/stemi-lab/id1393849515)

**Features:** macOS Compatibility

**In-app purchases:** none


### MIT App Inventor

[App page](https://appshunter.io/ios/app/mit-app-inventor/id1422709355)

Learn computational thinking and app development by building your own mobile applications. This educational tool uses a block-based programming language and offers tutorials for workshops. Test and debug your creations directly on your device.

**Highlights:** Block-based programming language, Design and code mobile apps, Test and debug projects, Built-in tutorials, Over 60 components, Learn computational thinking

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and responsive
- 💡 Great for learning and creating apps
- 👍 Useful for school and coding classes

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🔌 Connectivity issues, especially with iOS devices
- 👎 Confusing and outdated user interface
- ⚠️ Unreliable and glitchy performance

**Reported bugs**

- App frequently crashes or freezes
- Connectivity problems when trying to test apps
- Inconsistent behavior and unexpected errors

**Requested features**

- Improved compatibility with modern devices and operating systems
- More intuitive and user-friendly interface
- Better error handling and debugging tools


## Frequently asked questions

### Is Stemi Lab free?

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

### Is MIT App Inventor free?

MIT App Inventor is free to download, with no in-app purchases.

### Do Stemi Lab or MIT App Inventor have ads?

Neither Stemi Lab nor MIT App Inventor shows ads.

### Which is updated more often, Stemi Lab or MIT App Inventor?

Stemi Lab ships an update monthly, and MIT App Inventor every 3 months. Most recently, Stemi Lab was updated on November 6, 2026 and MIT App Inventor on November 6, 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.*