Quantum Mechanics + vs MARVLS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quantum Mechanics +
Explore quantum physics by numerically solving the Schrodinger Wave Equation. Visualize bound states and wave packets with various potentials, ideal for educational demonstrations. Accurately calculate energy values and observe quantum phenomena like tunneling.
- Solve Schrodinger's Wave Equation
- Visualize bound states and wave packets
- Simulate various potentials (Harmonic Oscillator, Square Well, etc.)
- Observe quantum phenomena (Ramsauer-Townsend effect, tunneling)
- Accurate energy value calculation
- Educational tool for introductory courses
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Numerically solve Schrodinger's Wave Equation with various potentials for bound states and wave packets. Real Quantum Physics - suitable for a theory lab or demonstration in an introductory Quantum Mechanics course. Find bound states for Harmonic Oscillator, Square Well, Ammonia Maser, Hydrogen Atom, and Delta Function Potentials. Follow a wave packet as it hits a Step Barrier, Resonant Potential and Tunnel Barrier. Enter energy values for a bound state and see if the solution converges - real energy values accurate to better than 1%. Observe the Ramsauer-Townsend effect and a wave packet tunnel through a forbidden potential barrier. Screenshots: 1) Home page with options 2) Harmonic Oscillator with 5 energy levels 3) Bound state potentials 4) Wave packet bouncing off of a step function potential 5) Wave packet potentials 6) Split two levels of an ammonia maser 7) Wave packet incident on a barrier 8) Wave packet after tunneling through barrier - right side amplified by magnifier
MARVLS
Explore quantum computing concepts through interactive augmented reality models. Requires a Merge Cube to visualize and manipulate topics like superposition and entanglement. Navigate through various educational modules to deepen your understanding.
- Augmented reality visualization
- Interactive quantum concepts
- Merge Cube integration
- Topics: superposition, entanglement, qubits
- Logic gates visualization
- Nuclear and electron spin models
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View augmented reality models of quantum computing concepts through your phone. You'll need a Merge Cube (link included to download). Click on different button to navigate to different topics. Tap the camera icon and point your camera towards the Merge Cube to visualize and interact with our MARVLS. Topics include observer dependency, superposition, entanglement, bits, qubits, nuclear and electron spin, logic gates, and trapped ions. Developer support provided by Leo Vanderlofske.
Screenshots
Verdict
The clearest difference is rating: Quantum Mechanics + at 4.8 against MARVLS's 1.0. Quantum Mechanics + also leads on review sentiment (100% vs 67%) and update cadence (daily vs every 4 weeks). MARVLS's advantage is in-app purchases (none vs 1). On price, ads and monetization model 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. Quantum Mechanics + sells 1 one-off in-app purchase. MARVLS asks for nothing beyond the download.
Quantum Mechanics + holds the better App Store score, 4.8 against 1.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 100% of Quantum Mechanics +'s written reviews are positive against 67% of MARVLS's.
Quantum Mechanics + ships an update daily, MARVLS every 4 weeks. The most recent releases landed on October 3, 2026 and September 27, 2026 respectively.
| Parameter | Quantum Mechanics + | MARVLS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 66.7% of reviews |
| Number of ratings | 4 — better | 1 |
| Update frequency | Daily — better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 168 MB |
| Age rating | 4+ | 4+ |
| Developer | Peter Kramer | Michele McColgan |
Customer experience
Quantum Mechanics +
MARVLS
In-app purchases
Quantum Mechanics +
- Contribution$0.99
MARVLS
No in-app purchases
Questions
Is Quantum Mechanics + free?
Is MARVLS free?
Which has better reviews, Quantum Mechanics + or MARVLS?
Do Quantum Mechanics + or MARVLS have ads?
Which is updated more often, Quantum Mechanics + or MARVLS?
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