# Happy Architect vs R2

The clearest difference is rating: Happy Architect at 5.0 against R2's 3.4. Happy Architect also leads on iOS requirement (8.0 vs 15.0). R2's advantage is ratings volume (376 vs 1). 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.

Happy Architect holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: R2 has 376 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Happy Architect | R2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/happy-architect/id1214295611/reviews)** | [3.4 (376 ratings)](https://appshunter.io/ios/app/r2-d2-droid-control/id1403826626/reviews) |
| Number of ratings | 1 | **376** |
| Positive reviews | — | 22.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free | Free |
| Size | 66 MB | 37 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Line Newermann](https://appshunter.io/developer/1035138822) | [De Agostini Publishing S.p.A.](https://appshunter.io/developer/446742474) |

## What reviewers say

### Happy Architect

[App page](https://appshunter.io/ios/app/happy-architect/id1214295611)

This game encourages children to explore their creativity and improve coordination by playing with various shapes. Watch balls roll down ramps and structures tumble as they build and experiment. It's designed for young minds to foster imagination in a safe, ad-free environment.

**Highlights:** Play with 8 different shapes, Shapes in 3 sizes, Rotate shapes, Random shape colors, Landscape and portrait modes, No ads or in-app purchases

**Features:** macOS Compatibility

**In-app purchases:** none


### R2

[App page](https://appshunter.io/ios/app/r2-d2-droid-control/id1403826626)

Control your interactive R2-D2 droid from your smartphone or tablet. Steer the droid, view its camera feed, and activate unique features like its projector and pop-up lightsaber. The droid can also operate autonomously and respond to voice commands.

**Highlights:** Dual mode control (command/AI), Video/still camera with face detection, Holographic message projector, Pop-up lightsaber, Extending arms and manipulator probes, Voice command response

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Works well when functioning properly
- 🎮 Endless features and functionality
- 🔧 Resolves issues with reinstallation
- 📱 Compatible with multiple Apple devices

**What reviewers complain about**

- 🐛 App crashes on startup frequently
- 📵 Connection failures to R2-D2 unit
- ⚠️ Not updated for latest iOS versions
- 🔌 WiFi connectivity issues (local and direct modes)
- 💔 Product becomes unusable without working app

**Reported bugs**

- App crashes immediately upon opening
- Unable to connect to R2-D2 via Bluetooth or WiFi
- Local WiFi connection mode not working
- Direct WiFi mode intermittently functional
- iOS 14, 16, 17, 18, 18.1 compatibility issues

**Requested features**

- Update app for iOS 16, 17, 18, and 18.1 compatibility
- Diagnostic feature to check R2-D2 problems
- Volume control option
- Programming/automation functionality
- Controller support (PS2/gamepad)


## Frequently asked questions

### Is Happy Architect free?

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

### Is R2 free?

R2 is free to download, with no in-app purchases.

### Which has better reviews, Happy Architect or R2?

Happy Architect is rated higher. Happy Architect averages 5.0 out of 5 from 1 ratings, while R2 averages 3.4 from 376 ratings.

### Do Happy Architect or R2 have ads?

Neither Happy Architect nor R2 shows ads.

### Which is updated more often, Happy Architect or R2?

Happy Architect ships an update every 4 months, and R2 every 4 months. Most recently, Happy Architect was updated on October 10, 2026 and R2 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.*