Comparison

Happy Architect vs R2

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Happy Architect

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
Read full description

Happy Architect lets your child play with ramps, boxes, circles and triangles to work on their fantasy and coordination. Balls roll down ramps and boxes topple over if stacked too high. Version 1.2 contains: - Play with 8 different shapes - Each shape has 3 different sizes - Rotate the shapes before picking them - Each shape gets assigned a random colour when selected - Works in both landscape and portrait mode - For iPad and iPhone - No popup advertising - No in-game purchases needed - No registration needed - No internet connection needed Recommended for kids 2 years and up. If you like this app or have any comments or suggestions please review it and leave us a note. Hope you enjoy it :)

About

R2

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
Read full description

Your R2-D2 is finally ready to interact with you! With the ‘Build R2-D2’ App you can control your interactive droid directly from your smartphone or tablet. Steer him at will, see what he sees, and activate all his special features! Features include: DUAL MODE You can switch R2-D2 to operate under command or in autonomous ‘AI’ mode, when he will behave like the wilful astromech in the movies and respond to voice commands. VIDEO/STILL CAMERA The video/still camera in R2-D2’s head allows him to take snapshots and short video clips, which can be stored on your mobile device. His programming also includes the ability to detect human faces. PROJECTOR Just like in the Star Wars movies, R2-D2 is able to display holographic messages using a projector which can beam images of Princess Leia and Luke Skywalker onto any nearby flat surface. POP-UP LIGHTSABER As in ‘Return of the Jedi’ R2-D2 has a ‘hidden extra’ – Luke Skywalker’s lighsaber, which will pop up on demand from the pneumatic ejection tube in his head. EXTENDING ARMS As in the movies, R2-D2 can extend his spacecraff linkage and control arms on comman.The flaps on his body conceal hidden droid manipulator arms and probes, which you can extend at will. ------------- Mail:  customercare@deagostini.co.uk

Screenshots

Happy Architect3 screens
R23 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard3 real differences · 7 level
Happy Architect versus R2: the parameters behind the verdict, then further details
ParameterHappy ArchitectR2
PriceFreeFree
Rating5.0 (1 ratings) — better3.4 (376 ratings)
Positive reviews—22.6% of reviews
Number of ratings1376 — better
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size66 MB37 MB
Age rating4+4+
DeveloperLine NewermannDe Agostini Publishing S.p.A.

Customer experience

Happy Architect

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

R2

All ratings326 ratings
Positive58.6%
Neutral2.5%
Negative39.0%
Written reviews168 reviews
Positive22.6%
Neutral7.1%
Negative70.2%

Bugs and requests

Happy Architect

Not enough reviews yet to summarise bugs or requests.

R2

Reported bugs

17 issues
  • 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
Show 12 more
  • App force closes when accessing camera or photo library
  • Settings menu appears empty or incomplete
  • Language selection not persisting (defaults to English)
  • Character encoding issues with accents and special characters
  • Camera display lag and latency
  • Head rotation juddering instead of smooth motion
  • Voice control not responding
  • Patrol mode not functioning properly
  • Photo feature crashes app
  • Configuration options cut off on screen
  • 5GHz WiFi not supported
  • App doesn't recognize R2-D2 on network despite connection

Requested features

14 requests
  • 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)
Show 9 more
  • Remote access outside local network
  • Smoother head and body movement controls
  • Recording and projection feature
  • Desktop application for Mac and Windows
  • Improved voice recognition
  • Better patrol mode with obstacle detection
  • Comprehensive user manual in app
  • Support for Little Bits Droid Inventor Kit
  • Additional language support (German, Spanish, Russian, Italian, Polish, French, Japanese)

In-app purchases

None

Happy Architect

No in-app purchases

None

R2

No in-app purchases

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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