Comparison

Model Constructor 3D vs World Builder 3D

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

Head to head
About

Model Constructor 3D

Assemble realistic plastic models part by part in this engaging puzzle game. Learn how components fit together through intuitive drag-and-drop mechanics. Enjoy different difficulty modes, customize completed models, and compete on global leaderboards.

Highlights
  • Realistic plastic model assembly
  • Drag-and-drop part snapping
  • Easy and Hard puzzle modes
  • Model customization (color, animations)
  • 360-degree model viewing
  • Global leaderboards
Features
Read full description

MC3D is a plastic modelling simulation app for your smart phone and tablet. Put together a variety of realistic models part by part and have fun learning about how these parts form the complete model. Featuring a very straightforward part drag n' drop snapping system, anyone can begin building a model piece by piece. It has never been easier or more entertaining for adults and children alike to build exciting plastic models. This app also includes ‘Easy’ and ‘Hard’ puzzle modes. In ‘Hard’ mode, the order in which parts are fitted is important and learning which part must be added first adds a puzzle element to building the many fantastic models, such as sports cars, ships, submarines and planes and many more. The challenge of placing parts in the correct order of construction makes building a model even more rewarding. Once the model is completed, you can change its colors, play animations and sounds, and watch as parts of the models move and operate. Of course, you can view the model in more detail by panning, zooming and rotating around the the scene to view the model from all angles. Additionally, the parts menu is randomized allowing you to try your hand at the model again and again, and giving the chance to beat hiscores on the in-app global leaderboards. Download now and give it a try.

About

World Builder 3D

Unleash your creativity in a virtual world where you can build diverse 3D houses and famous landmarks. Assemble parts like a puzzle, use hints, and enjoy relaxing gameplay with beautiful graphics. This open-world sandbox game offers endless creative possibilities.

Highlights
  • Build diverse 3D houses
  • Assemble famous building models
  • 3D puzzle gameplay
  • Open world sandbox
  • Hundreds of items to build
  • Beautiful 3D graphics
Read full description

Discover, be creative and expand your imagination in a virtual world full of quests where you have the power to build a lot of different houses with a choice. Build and explore the world with a fun and relaxing 3D puzzle game. All the models are based on the world's famous buildings. While assembling the parts into various models, players are also feeling the exotic atmospheres around the world. How To Play: - Select a 3d building model and assemble it by yourself. - Simply drag the objects and place them on the floor. - Rotate the floor and find the exact position by dragging near to it. - If you will not find an object reflection on the wooden floor, then rotate the floor again and solve it like a puzzle. - Use hints to find the exact position of the object and solve the jigsaw world puzzle. - Get more hints by watching ads and complete the percentage for 3d coloring view. - Enjoy the background music while constructing a building. Features: - Hundreds of items to build. - Beautiful 3D graphics. - Trains your brain and open your imagination by crafting objects. - Designed to develop creativity with hours of world-building fun. - Travel the world and craft your world from scratch piece by piece. - Open world sandbox game where no specific goals are required to accomplish. Immerse yourself in creative gameplay with city builder and create your own adventure. World 3D builder is the perfect game to spark your creativity.

Screenshots

Model Constructor 3D4 screens
World Builder 3D4 screens

Verdict

The call

The clearest difference is review sentiment: Model Constructor 3D at 100% against World Builder 3D's 17%. Model Constructor 3D also leads on in-app purchases (none vs 4) and update cadence (every 2 months vs every 6 months). World Builder 3D's advantage is rating (4.4 vs 3.6) and ads (none vs shown). On price, device support and iOS requirement 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. World Builder 3D sells 4 one-off in-app purchases. Model Constructor 3D asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

World Builder 3D holds the better App Store score, 4.4 against 3.6. That said, the two scores are not equally well evidenced: World Builder 3D has 363 ratings behind it against 25, so its average is the more settled of the two. Written reviews complicate that: 100% of Model Constructor 3D's written reviews are positive against 17% of World Builder 3D's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Model Constructor 3D ships an update every 2 months, World Builder 3D every 6 months. The most recent releases landed on September 10, 2026 and August 10, 2026 respectively.

Scorecard7 real differences · 3 level
Model Constructor 3D versus World Builder 3D: the parameters behind the verdict, then further details
ParameterModel Constructor 3DWorld Builder 3D
PriceFreeFree
Rating3.6 (25 ratings)4.4 (363 ratings) — better
Positive reviews100.0% of reviews — better16.7% of reviews
Number of ratings25363 — better
Update frequencyEvery 2 months — betterEvery 6 months
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.013.0
Further details — not scored
Size294 MB149 MB
Age rating4+4+
DeveloperBen WalkerVector Labs Limited

Customer experience

Model Constructor 3D

All ratings25 ratings
Positive60.0%
Neutral12.0%
Negative28.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

World Builder 3D

All ratings363 ratings
Positive84.8%
Neutral6.1%
Negative9.1%
Written reviews18 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

Bugs and requests

Model Constructor 3D

Not enough reviews yet to summarise bugs or requests.

World Builder 3D

Reported bugs

9 issues
  • Pieces do not attach easily
  • Pieces slide off screen
  • Ads obscure gameplay
  • Last piece is off the side and impossible to grab
  • Some pieces disappear and need to be scrolled for
Show 4 more
  • Pieces don't feel like they set
  • Cannot get to some pieces on the far left or right
  • Controls are shaky
  • Pieces are too small to see flashing

Requested features

6 requests
  • Add new models
  • Timer reset at midnight in player's timezone
  • Fix pieces being grayed out
  • Improve piece placement sensitivity
  • Make puzzles larger
Show 1 more
  • Add a way to tilt the view for extreme mode

In-app purchases

None

Model Constructor 3D

No in-app purchases

4 purchases

World Builder 3D

One-time4
  • 300 Coins$1.99
  • Remove Ads$2.99
  • 700 Coins$3.99
Show 1 more
  • 1500 Coins$6.99

Questions

Is Model Constructor 3D free?
Model Constructor 3D is free to download, with no in-app purchases.
Is World Builder 3D free?
World Builder 3D is free to download, with in-app purchases available.
Which has better reviews, Model Constructor 3D or World Builder 3D?
World Builder 3D is rated higher. Model Constructor 3D averages 3.6 out of 5 from 25 ratings, while World Builder 3D averages 4.4 from 363 ratings.
Do Model Constructor 3D or World Builder 3D have ads?
Model Constructor 3D shows ads; World Builder 3D does not.
Which is updated more often, Model Constructor 3D or World Builder 3D?
Model Constructor 3D ships an update every 2 months, and World Builder 3D every 6 months. Most recently, Model Constructor 3D was updated on September 10, 2026 and World Builder 3D on August 10, 2026.

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