Decodoku vs Quantum Quiz App
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- Quantum puzzle gameplay
- Scientific research tool
- Quantum error correction
- Advance quantum computing
- Educational science content
Read full descriptionHide 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.
Quantum Quiz App
Test and improve your knowledge of quantum technologies with this engaging quiz app. Play solo or compete with others in multiplayer modes, with over 800 questions across three difficulty levels. Submit your own questions to contribute to the growing library.
- Improve quantum technology knowledge
- Solo and multiplayer modes
- Over 800 questions
- Three difficulty levels
- Submit your own questions
- Monthly high score reset
Read full descriptionHide full description
Quantum Quiz is a fun app, developed by employees, partners and friends of TOPTICA Photonics. Imagine being able to playfully improve your knowledge of quantum technologies. Every day, at any place and at any time. Our new quiz app now makes this possible for all quantum technology enthusiasts. Though there are no tangible prizes, players win by enhancing their quantum knowledge and the joy of the game. Players can test and improve their knowledge in exciting contests with like-minded people with questions such as "Which atom might be a good candidate for a nuclear atomic clock?" or "What is forbidden for a quantum state?" There are currently more than 800 questions in the app, divided into three levels of difficulty: Level 1 can typically be answered by people with a general interest in Optics/Physics/Science and a sense of humor. Level 2 can typically be answered by people who paid attention during their physics classes at university. Level 3 is for experts in the field of quantum technologies. The app offers two game modes: Solo and Multiplayer. Up to 4 people in each multiplayer game and several parallel multiplayer games are possible. The high score table will be reset at the beginning of each month, when TOPTICA will add new questions to the library. Everybody is invited to submit their own questions via the app!
Screenshots
Verdict
The clearest difference is update cadence: Decodoku at every 3 months against Quantum Quiz App's every 12 months. Decodoku also leads on iOS requirement (8.0 vs 14.2). On price, rating, review sentiment and ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Decodoku against 5.0 for Quantum Quiz App. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Decodoku ships an update every 3 months, Quantum Quiz App every 12 months. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.
| Parameter | Decodoku | Quantum Quiz App |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 | 3 |
| Update frequency | Every 3 months — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 14.2 |
| Further details — not scored | ||
| Size | 52 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | James Robin Wootton | Toptica Photonics AG |
Customer experience
Decodoku
Quantum Quiz App
In-app purchases
Decodoku
No in-app purchases
Quantum Quiz App
No in-app purchases








