Comparison

Algodoo vs PIXIO®

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

PIXIO®

Design and build 3D pixel art digitally or with magnetic blocks. Explore a community of artists, share your creations, and get inspired by thousands of designs. Bring your digital art to life in the real world.

Highlights
  • Create 3D pixel art digitally
  • Build physical art with magnetic blocks
  • Interactive 3D building guides
  • Share creations and get community feedback
  • Augmented reality (AR) features
  • Explore and remix art from other users
  • Color palette inspiration
Features
Read full description

The PIXIO app is an integral part of the PIXIO magnetic construction set. With it, you can create hundreds of different art pieces according to interactive instructions. At the same time, you can use the PIXIO app without a construction set, and assemble your art in only a digital format. The PIXIO app provides a wide range of opportunities for creators and fans of pixel and voxel art. Create your 3D pixel art in the Studio. Post it in the art feed. Get feedback from the community in the comments. Follow your favorite artists and constantly update your art collections. Get inspired by thousands of artists around the world and participate in competitions. Get real magnetic blocks to bring your creative ideas created in the app to life. All this is waiting for you in the new PIXIO app! In addition to the epic transformation of the app into a social network for pixel art enthusiasts from all over the world, the updated version has new features: ■ search thousands of pieces of art using tags, collections, keywords, and artists; ■ have fun augmenting reality with your art (AR); ■ change the background color of the art; ■ get inspired by the art of other artists — in the Studio you can work with any published art in the app, see in detail how it was made, and then upgrade it; ■ look for new color ideas with the recolor function; ■ choose any angle of your art to show it to the audience in the feed from the perfect angle. Of course, the basic functions for which pixel and voxel art fans love the PIXIO app have remained unchanged: ■ Each art in the PIXIO app is an accessible interactive instruction for creating anything from the PIXIO magnetic construction set. There are a variety of art collections for creative activities, ranging from animals and robots to artworks and interiors. ■ Create on the go, on different devices, even without an internet connection. ■ Interactive 3D guides, explaining how to create characters and artefacts. ■ Friendly instructions on the colors and numbers of required blocks for each creation. ■ Regular collection updates. PIXIO is dedicated to all designers, gamers, artists, architects as well as lovers, fans and admirers of everything new, fashionable, technological, and beautiful. With the app and only one set of PIXIO, there can be a new creation on your table every day that expresses your mood and develops your imagination. Create 3D pixel art Share your art with the public Get feedback from the public Build art in reality Explore the world of pixel and voxel art Get inspired by art collections Explore art design Upgrade any of the thousands of pieces of published art Get ideas for new palettes PIXIO is a state-of-the-art technology with the pursuit of excellence through design. Smart system of magnets inside, so it feels like the blocks are alive in your hands. Carefully picked color palettes. Surface of the blocks is pleasing to the touch. Satisfying clicking sound when connecting the blocks. Each PIXIO block is a little plastic cube size 8*8*8 mm (0.3*0.3*0.3 inches) weighing less than 1 gram with 6 magnets inside it. The position and polarity of the magnets are designed so that the blocks can be connected to each other in any sequence from different sides. Just take the PIXIO block in your hand and place it next to the other PIXIO blocks – and BANG! - the PIXIO blocks are connected.

Screenshots

PIXIO®4 screens

Verdict

The call

The clearest difference is price: PIXIO® at Free against Algodoo's $7.99. PIXIO® also leads on rating (4.7 vs 3.8) and review sentiment (83% vs 59%). Algodoo's advantage is ratings volume (878 vs 267) and iOS requirement (12.0 vs 14.0). On 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

PIXIO® is free to download; Algodoo costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

PIXIO® holds the better App Store score, 4.7 against 3.8. Both are backed by a comparable volume of ratings — 878 and 267 respectively. Written reviews point the same way: 59% of Algodoo's written reviews are positive against 83% of PIXIO®'s.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. Both last shipped on September 24, 2026.

Scorecard7 real differences · 3 level
Algodoo versus PIXIO®: the parameters behind the verdict, then further details
ParameterAlgodooPIXIO®
Price$7.99Free — better
Rating3.8 (878 ratings)4.7 (267 ratings) — better
Positive reviews59.1% of reviews83.3% of reviews — better
Number of ratings878 — better267
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS12.0 — better14.0
Further details — not scored
Size29 MB185 MB
Age rating9+4+
DeveloperAlgoryx Simulation ABJutiful

Customer experience

Algodoo

All ratings878 ratings
Positive69.2%
Neutral7.5%
Negative23.2%
Written reviews714 reviews
Positive59.1%
Neutral12.5%
Negative28.4%

PIXIO®

All ratings267 ratings
Positive92.5%
Neutral6.0%
Negative1.5%
Written reviews60 reviews
Positive83.3%
Neutral10.0%
Negative6.7%

User reviews

Algodoo

From 878 App Store ratings

What we love

  • 🚀 Great physics simulation
  • 👍 Interesting and fun to use
  • 💡 Ability to create and share creations
  • 🚀 No ads

Room to improve

  • 🐛 Frequent crashes and bugs
  • 🐛 Issues with loading and saving scenes
  • 🐛 Textures and images not working properly
  • 🐛 Laggy performance with complex scenes

PIXIO®

From 267 App Store ratings

What we love

  • 🤩 Fun and engaging gameplay
  • 🎨 Creative freedom and imagination
  • 👍 Easy to use interface
  • 💡 Layer-by-layer instructions
  • 🚀 Efficient and intuitive app

Room to improve

  • 🐛 Frequent errors and pop-ups
  • 🐛 Cannot build or log back in
  • 🐛 Sign-in issues
  • 🐛 "Select favorite category" doesn't let user pass
  • 🐛 Cannot see comments

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

PIXIO®

Reported bugs

18 issues
  • Frequent errors and pop-ups
  • Cannot build or log back in
  • Sign-in issues
  • "Select favorite category" doesn't let user pass
  • Cannot see comments
Show 13 more
  • Randomly kicked off the game
  • Profile picture moderation is awful
  • App blocks are expensive
  • App blocks are a waste of money
  • Invalid code for app blocks
  • Glitches and freezes
  • Cannot publish art anymore
  • Username taken even for random letters
  • Blurred content due to app blocks
  • Cheaters in contests
  • Expensive magnets to build in real life
  • App blocks are like Robux
  • Freezes after a few clicks outside building mode

Requested features

5 requests
  • More color options
  • Add REBUS game updates
  • Improve profile picture moderation
  • Add different environment settings for builds (under the sea, ancient monsters, town, forest)
  • Remove app blocks

In-app purchases

None

Algodoo

No in-app purchases

None

PIXIO®

No in-app purchases

Questions

Is Algodoo free?
Algodoo costs $7.99, with no in-app purchases.
Is PIXIO® free?
PIXIO® is free to download, with no in-app purchases.
Which has better reviews, Algodoo or PIXIO®?
PIXIO® is rated higher. Algodoo averages 3.8 out of 5 from 878 ratings, while PIXIO® averages 4.7 from 267 ratings.
Do Algodoo or PIXIO® have ads?
Neither Algodoo nor PIXIO® shows ads.
Which is updated more often, Algodoo or PIXIO®?
Algodoo ships an update monthly, and PIXIO® monthly. Most recently, Algodoo was updated on September 24, 2026 and PIXIO® on September 24, 2026.

Other comparisons