Comparison

Algodoo vs Blocks Builder

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

Head to head
About

Algodoo

Design and experiment with realistic 2D physics simulations. Build intricate machines, create virtual science experiments, and explore cause and effect. Share your creations and discover those of others in a vibrant community.

Highlights
  • Create objects with shapes or free-hand drawing
  • Combine components for intricate machines
  • Choose and customize materials
  • Simulate physics with gravity and aerodynamics
  • Explore ideas through trial and error
  • Build animations, contraptions, and experiments
  • Access community-created scenes
Read full description

Bring your ideas to life with realistic physics in Algodoo. This creative and educational app lets you design two-dimensional scenes where objects move according to the laws of physics. See cause and effect in action and refine your builds to perfection. Algodoo is a virtual 2D construction set to enjoy the creative thrill of building fun scenes and machines. You’ll never run out of parts. You can go deeper and analyse the motion and learn about mechanical devices. Once you master the tools and principles, you can build sandbox games or mesmerising, complex simulations. • Use basic 2D geometrical shapes or the free-hand drawing tool to create objects. • Combine components like axles, springs, motors, ropes, and lasers to create intricate machines. • Choose from various materials—steel, wood, rubber, water, and helium—and customise at will. • Press “Simulate” to bring your scene to life, moving under the forces of gravity, aerodynamics, buoyancy, and more. • Use trial and error to explore ideas and perfect your inventions. • Express your imagination with vibrant colors, shapes, and textures. Looking to build animations, contraptions, marble races, moving structures, chain reactions, or virtual science experiments? With Algodoo, the possibilities for invention, creativity, and exploration are endless. With the Quick Tour and tutorial videos, you can easily learn Algodoo’s basic tools and principles. It's not just for fun— the scientific foundation of Algodoo makes it a great teaching and learning aid for exploring physics concepts, operating principles of machines, and even construction. Discover the creativity of others and get inspired for your next build by visiting the Algobox library. Access thousands of scenes created by the Algodoo community and share your own creations by signing up for an Algobox account. Algodoo offers endless fun for users of all ages. Download the app now and start building, and search for #Algodoo on YouTube or social media to explore videos showcasing imaginative creations from our global community.

About

Blocks Builder

This puzzle game allows players to build and create pixel-style models using various colored blocks. Import reference diagrams, follow tutorials, and even use augmented reality to bring your creations to life. Share your building process through videos.

Highlights
  • Block crafting with various colors
  • Import reference diagrams for building
  • Tutorials for preset models
  • Edit existing models
  • Record and share building videos
  • Augmented Reality model projection
Features
Read full description

"Blocks Builder" is a puzzle game. Players can strengthen their imagination and exercise logical thinking by building blocks. You can also create your own pixel-style models in the game. Game features: 1. Crafting - There various colors of blocks in this game, you can use different blocks to create models. For example, buildings, animals, dinosaurs and other things that you can imagine. 2. Reference diagrams - There are a number of reference diagrams that players can import. You can create models through the reference diagrams. 3. Tutorial - there're tutorials for all the preset models in the game, players can restore the models through the tutorial. 4. Editing - Players can edit the preset model, including colour, structure and so on, the way of editing the models is simple and convenient. Use your imagination, then you will get a brand new model. 5. Videos and Sharing - When the model is done, you can record a video and play back the contruction process. And you can create and sent the video to your friends to share the joy of building blocks with them. 6. Augmented Reality - models can also be combined with reality through AR technology. Activate the AR function and camera to project the model into reality. Put the buildings into reality to simulate a small city, or put the animals into reality to simulate a zoo.

Screenshots

Blocks Builder4 screens

Verdict

The call

The clearest difference is price: Blocks Builder at Free against Algodoo's $7.99. Blocks Builder also leads on rating (4.7 vs 3.8) and device support (3 vs 1). Algodoo's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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

Blocks Builder is free to download; Algodoo costs $7.99 up front. Blocks Builder sells 1 one-off in-app purchase. Algodoo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Blocks Builder holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: Algodoo has 878 ratings behind it against 64, so its average is the more settled of the two.

UpkeepUpdate frequency

Algodoo ships an update monthly, Blocks Builder every 4 months. The most recent releases landed on October 18, 2026 and October 5, 2026 respectively.

Scorecard8 real differences · 2 level
Algodoo versus Blocks Builder: the parameters behind the verdict, then further details
ParameterAlgodooBlocks Builder
Price$7.99Free — better
Rating3.8 (878 ratings)4.7 (64 ratings) — better
Positive reviews58.7% of reviews—
Number of ratings878 — better64
Update frequencyMonthly — betterEvery 4 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS12.011.0 — better
Further details — not scored
Size29 MB99 MB
Age rating9+4+
DeveloperAlgoryx Simulation ABWai Chin Ng

Customer experience

Algodoo

All ratings878 ratings
Positive69.2%
Neutral7.5%
Negative23.2%
Written reviews726 reviews
Positive58.7%
Neutral12.5%
Negative28.8%

Blocks Builder

All ratings64 ratings
Positive90.6%
Neutral3.1%
Negative6.3%

Bugs and requests

Algodoo

Reported bugs

4 issues
  • Scenes resetting to tutorial
  • Textures and images not loading properly
  • Crashes when trying to import images
  • Buttons and controls not working as expected

Requested features

4 requests
  • Add text and scripting options on mobile
  • Improve mobile UI and controls
  • Implement more features from PC version
  • Fix issues with account bans and deletions

Blocks Builder

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Algodoo

No in-app purchases

1 purchases

Blocks Builder

One-time1
  • 3D Blocks Bulider - Ads Remove$3.99

Questions

Is Algodoo free?
Algodoo costs $7.99, with no in-app purchases.
Is Blocks Builder free?
Blocks Builder is free to download, with in-app purchases available.
Which has better reviews, Algodoo or Blocks Builder?
Blocks Builder is rated higher. Algodoo averages 3.8 out of 5 from 878 ratings, while Blocks Builder averages 4.7 from 64 ratings.
Do Algodoo or Blocks Builder have ads?
Blocks Builder shows ads; Algodoo does not.
Which is updated more often, Algodoo or Blocks Builder?
Algodoo ships an update monthly, and Blocks Builder every 4 months. Most recently, Algodoo was updated on October 18, 2026 and Blocks Builder on October 5, 2026.

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