Quantum Kate AR vs QuantumNote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quantum Kate AR
Explore the quantum world by connecting subatomic particles. Discover new particles by drawing strings between quarks, but avoid crossing them. Unlock more quarks as you progress and aim to find all particles to become a Quantum Rascal.
- Discover subatomic particles
- Connect quarks to form new particles
- AR experience in your room
- Unlock new quarks
- Track discovered particles
- High score challenges
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Help Quantum Kate to discover subatomic particles and become a true Quantum Rascal! From Kate's room, you can access the portal to the quantum world and start the game. Coloured particles called quarks will pop up into your room. Connect two or three quarks together by drawing strings between them with your phone and form new particles - but be careful not to cross the strings! The more particles you discover, the more quarks you unlock. Watch out for the quantum particles you created: they are unstable and will decay into more quarks. Find all the particles you discovered in the highscore poster back in Kate's room. Play to beat your best score and discover all the subatomic particles to become a true Quantum Rascal!
QuantumNote
Master quantum computing with a comprehensive learning companion covering fundamentals to advanced algorithms. Explore topics with clear explanations, code examples, and progress tracking. Designed for students, developers, and enthusiasts.
- Comprehensive curriculum with 66 topics
- Beginner to advanced content
- Code examples with Python/Qiskit
- Formula reference with LaTeX
- Progress tracking and practice mode
- Offline access
- Dark mode
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Master quantum computing from fundamentals to advanced algorithms with QuantumNote — your comprehensive, beautifully designed learning companion. WHY QUANTUMNOTE? Quantum computing is revolutionizing technology, from cryptography to drug discovery. Whether you're a student, developer, researcher, or curious learner, QuantumNote provides everything you need to understand this transformative field. COMPREHENSIVE CURRICULUM • 66 in-depth topics across 8 categories • Beginner to advanced content with clear progression • Each topic includes definitions, formulas, examples, and code EIGHT LEARNING CATEGORIES 1. Quantum Basics — Superposition, entanglement, measurement 2. Qubits — Bloch sphere, Dirac notation, Bell states 3. Quantum Gates — Pauli, Hadamard, CNOT, rotations 4. Quantum Circuits — Building and optimizing quantum programs 5. Quantum Algorithms — Grover's, Shor's, VQE, QAOA 6. Quantum Hardware — Superconducting, ion trap, photonic qubits 7. Error Correction — Surface codes, fault tolerance 8. Quantum Cryptography — QKD, post-quantum security POWERFUL FEATURES • Formula Reference — 42 essential formulas with LaTeX notation • Quick Reference — Gates, states, hardware comparison at a glance • Study Tips — 25 expert tips for effective learning • Career Roadmaps — Paths for developers, researchers, engineers • Code Examples — Real Python/Qiskit code for every concept • Bookmarks — Save important topics for quick access • Notes — Add personal annotations to any topic • Progress Tracking — Monitor your learning journey • Practice Mode — Test your understanding • Search — Find any concept instantly • Dark Mode — Easy on the eyes for extended study LEARN BY DOING Every topic includes: • Clear, accessible explanations • Step-by-step worked examples • Real-world applications • Runnable Python code with Qiskit • Memory tricks and study tips DESIGNED FOR LEARNING • Beautiful, distraction-free interface • Offline access to all content • Regular content updates • Optimized for iPhone and iPad WHO IS THIS FOR? • Computer science students • Software developers exploring quantum • Physics enthusiasts • Researchers and academics • Anyone curious about the future of computing Start your quantum computing journey today. The quantum revolution is here — don't get left behind.
Screenshots
Verdict
The clearest difference is rating: QuantumNote at 5.0 against Quantum Kate AR's 3.0. Quantum Kate AR's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (11.0 vs 16.0). On price, ratings volume, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
QuantumNote holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Quantum Kate AR ships an update every 3 weeks, QuantumNote every 2 months. The most recent releases landed on October 15, 2026 and September 27, 2026 respectively.
| Parameter | Quantum Kate AR | QuantumNote |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 144 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Syddansk Universitet | Dinesh Malla |
Customer experience
Quantum Kate AR
QuantumNote
In-app purchases
Quantum Kate AR
No in-app purchases
QuantumNote
No in-app purchases









