Comparison

Decodoku vs Quantum 3

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

Head to head
About

Decodoku

Engage in a unique puzzle game that doubles as a tool for scientific research in quantum error correction. Solve complex challenges to help advance the development of real-life quantum computers. Explore the science behind the game on the developer's website.

Highlights
  • Quantum puzzle gameplay
  • Scientific research tool
  • Quantum error correction
  • Advance quantum computing
  • Educational science content
Read full description

This is not just any puzzle game. This is a quantum puzzle game! You can just play it for fun, or you can use it to conduct scientific research in the field of quantum error correction. These are the puzzles that need to be solved to keep quantum computers free of errors. We need to work out the best way to do it. By becoming a master at this game, you could help build a real-life quantum computer. Check out our website for more details on the science behind the game. This app was developed by Dr James Wootton, a quantum error correction researcher at the University of Basel. It is supported by the NCCR QSIT.

About

Quantum 3

An educational match-3 game that blends fun gameplay with quantum physics concepts. Players match quarks to build subatomic particles and learn about fundamental physics mysteries. It's a great introduction to particle physics for all ages.

Highlights
  • Match-3 gameplay
  • Learn quantum physics
  • Build subatomic particles
  • Explore fundamental physics
  • Puzzle-solving mechanics
Features
Read full description

Quantum 3 is an educational match-3 game for all ages where fun meets quantum physics! Build subatomic particles, learn about the mysteries of fundamental physics and deploy antimatter to clear the way! You'll match and swap quarks to make (and learn about) the baryons you need for each objective. Puzzle out the quantum properties of color, flavor and spin. So get in there and start your quantum-venture! Quantum 3 is puzzle-matching at its finest and a great intro to the world of particle physics! The game is free-to-play with no in-app purchases. The game is developed at Michigan State University by the Games for Entertainment and Learning Lab and is funded under grant PHY 1653405 by the National Science Foundation.

Screenshots

Decodoku1 screens
Quantum 34 screens

Verdict

The call

The clearest difference is update cadence: Decodoku at every 3 months against Quantum 3's every 16 months. Decodoku also leads on iOS requirement (8.0 vs 12.0). Quantum 3's advantage is ratings volume (15 vs 3). On price, rating, review sentiment and ads 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

On the App Store both sit at effectively the same score — 5.0 for Decodoku against 5.0 for Quantum 3. That said, the two scores are not equally well evidenced: Quantum 3 has 15 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Decodoku ships an update every 3 months, Quantum 3 every 16 months. The most recent releases landed on September 26, 2026 and October 3, 2026 respectively.

Scorecard3 real differences · 7 level
Decodoku versus Quantum 3: the parameters behind the verdict, then further details
ParameterDecodokuQuantum 3
PriceFreeFree
Rating5.0 (3 ratings)5.0 (15 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings315 — better
Update frequencyEvery 3 months — betterEvery 16 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better12.0
Further details — not scored
Size52 MB124 MB
Age rating4+4+
DeveloperJames Robin WoottonBrian Winn

Customer experience

Decodoku

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Quantum 3

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Decodoku

No in-app purchases

None

Quantum 3

No in-app purchases

Questions

Is Decodoku free?
Decodoku is free to download, with no in-app purchases.
Is Quantum 3 free?
Quantum 3 is free to download, with no in-app purchases.
Which has better reviews, Decodoku or Quantum 3?
Decodoku and Quantum 3 are both rated 5.0 out of 5 on the App Store, from 3 and 15 ratings respectively.
Do Decodoku or Quantum 3 have ads?
Neither Decodoku nor Quantum 3 shows ads.
Which is updated more often, Decodoku or Quantum 3?
Decodoku ships an update every 3 months, and Quantum 3 every 16 months. Most recently, Decodoku was updated on September 26, 2026 and Quantum 3 on October 3, 2026.

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