Comparison

Sporadic M12 vs Decodoku

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

Head to head
About

Sporadic M12

A challenging number puzzle game inspired by Rubik's Cube. Players spin rings and swap numbers to match them with colored balls, aiming to return all numbers to their home positions. Each puzzle is randomly generated and solvable, offering unique challenges.

Highlights
  • Spinning number rings
  • Swapping number pairs
  • Color-coded ball matching
  • Randomly generated puzzles
  • Solvable challenges
  • Intuitive controls
Features
Read full description

Spin and swap! A cousin of Rubik's cube, it's a puzzle you can start working on immediately -- it's so simple! Spin the ring of numbers around with your finger, or swap all the pairs of numbers over the pairs of balls of the same color by flicking down from the 0-ball. The numbers start out all mixed up -- your job is to return them to the Home position where the number over each ball matches the small gray number next to the ball. So easy ... and yet ... Solve it by combinations of spinning the ring of numbers or doing a swap. The game generates puzzles by random moves, so each puzzle is solvable ... but that doesn't mean it will be easy! Our email address is m12@magnolia-heights.com.

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.

Screenshots

Sporadic M121 screens
Decodoku1 screens

Verdict

The call

The clearest difference is price: Decodoku at Free against Sporadic M12's $0.99. Decodoku also leads on update cadence (every 3 months vs every 38 months) and ratings volume (3 vs 1). On rating, review sentiment, 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

Decodoku is free to download; Sporadic M12 costs $0.99 up front. 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 Sporadic M12 against 5.0 for Decodoku. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Sporadic M12 ships an update every 38 months, Decodoku every 3 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Sporadic M12 versus Decodoku: the parameters behind the verdict, then further details
ParameterSporadic M12Decodoku
Price$0.99Free — better
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 38 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.08.0 — better
Further details — not scored
Size13 MB52 MB
Age rating4+4+
DeveloperMagnolia Heights Research and DevelopmentJames Robin Wootton

Customer experience

Sporadic M12

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Decodoku

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

In-app purchases

None

Sporadic M12

No in-app purchases

None

Decodoku

No in-app purchases

Questions

Is Sporadic M12 free?
Sporadic M12 costs $0.99, with no in-app purchases.
Is Decodoku free?
Decodoku is free to download, with no in-app purchases.
Which has better reviews, Sporadic M12 or Decodoku?
Sporadic M12 and Decodoku are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Sporadic M12 or Decodoku have ads?
Neither Sporadic M12 nor Decodoku shows ads.
Which is updated more often, Sporadic M12 or Decodoku?
Sporadic M12 ships an update every 38 months, and Decodoku every 3 months. Most recently, Sporadic M12 was updated on October 23, 2026 and Decodoku on October 24, 2026.

Other comparisons