# Build i vs Monstercraft Simulator

The clearest difference is ads: Build i at none against Monstercraft Simulator's shown. Build i also leads on update cadence (every 2 months vs every 10 months) and iOS requirement (8.0 vs 13.0). On price, 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.

Build i ships an update every 2 months, Monstercraft Simulator every 10 months. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Build i | Monstercraft Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/build-i-bot/id1319079814/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Free | — |
| Size | 31 MB | 210 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beta Software Technologies Co., Ltd](https://appshunter.io/developer/440648438) | [Ben Walker](https://appshunter.io/developer/385443776) |

## What reviewers say

### Build i

[App page](https://appshunter.io/ios/app/build-i-bot/id1319079814)

This app introduces users to robotics through a flexible kit that can be transformed into six different configurations. It offers a proven STEM education experience, designed to interact with the robot and build user confidence. The smart components are simple and easy to connect for a smooth assembly process.

**Highlights:** Learn robotics basics, Flexible robot kit with 6 configurations, Proven STEM education, Interactive smart app, Simple component assembly

**Features:** macOS Compatibility

**In-app purchases:** none


### Monstercraft Simulator

[App page](https://appshunter.io/ios/app/monstercraft-simulator/id6742458424)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Build i free?

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

### Is Monstercraft Simulator free?

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

### Do Build i or Monstercraft Simulator have ads?

Monstercraft Simulator shows ads; Build i does not.

### Which is updated more often, Build i or Monstercraft Simulator?

Build i ships an update every 2 months, and Monstercraft Simulator every 10 months. Most recently, Build i was updated on October 2, 2026 and Monstercraft Simulator on October 7, 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.*