Space Crab 2 vs Quantum Quiz App
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Space Crab 2
Embark on a journey home with a familiar crustacean, now accompanied by new friends. Navigate through space, dodge obstacles, collect currency, and unlock a vast array of characters and planets in this engaging adventure.
- Dodge meteors
- Collect coins
- Recruit new friends
- Explore 7 new planets
- Unlock 80+ crabs and creatures
- New soundtrack
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Space Crab is back! After two years, it's time for Space Crab to make his way home. Only now, he's not alone! Dodge meteors, collect coins, and recruit new friends to help you on your journey! -7 new planets to explore! -80+ new crabs and creatures to unlock! -An all new soundtrack by Commander Jersey, Misbradventures, and John Hoban! We hope you enjoy this all new Space Crab experience! (When pressing the leaderboard button, your information is sent to app leaderboard. For more information, please refer to the privacy policy URL.)
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
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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: Space Crab 2 at fortnightly against Quantum Quiz App's every 12 months. Space Crab 2 also leads on ratings volume (23 vs 3) and iOS requirement (11.0 vs 14.2). 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
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 Space Crab 2 against 5.0 for Quantum Quiz App. That said, the two scores are not equally well evidenced: Space Crab 2 has 23 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.
Space Crab 2 ships an update fortnightly, Quantum Quiz App every 12 months. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.
| Parameter | Space Crab 2 | Quantum Quiz App |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (23 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 23 — better | 3 |
| Update frequency | Fortnightly — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 14.2 |
| Further details — not scored | ||
| Size | 67 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Rears | Toptica Photonics AG |
Customer experience
Space Crab 2
Quantum Quiz App
In-app purchases
Space Crab 2
No in-app purchases
Quantum Quiz App
No in-app purchases









