# MicroRobot vs Builder Pro

The clearest difference is iOS requirement: MicroRobot at 15.6 against Builder Pro's 17.6. On price, update cadence, ads 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.

MicroRobot ships an update every 3 days, Builder Pro every 4 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MicroRobot | Builder Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 days |
| Size | 23 MB | 7 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Guoxun Tian](https://appshunter.io/developer/1831130618) | [iCubemedia Inc.](https://appshunter.io/developer/453286185) |

## What reviewers say

### MicroRobot

[App page](https://appshunter.io/ios/app/microrobot/id6749554471)

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

**In-app purchases:** none


### Builder Pro

[App page](https://appshunter.io/ios/app/builder-pro-construction-calc/id6792803672)

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

**In-app purchases:** none


## Frequently asked questions

### Is MicroRobot free?

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

### Is Builder Pro free?

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

### Do MicroRobot or Builder Pro have ads?

Neither MicroRobot nor Builder Pro shows ads.

### Which is updated more often, MicroRobot or Builder Pro?

MicroRobot ships an update every 3 days, and Builder Pro every 4 days. Most recently, MicroRobot was updated on October 28, 2026 and Builder Pro on October 24, 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.*