3D Plotter XL vs Quantum Mechanics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D Plotter XL
Visualize 2D functions in a 3D space by entering formulas and defining plot ranges. Customize the display with grid toggles and color themes, and control rendering quality. Save your formulas for future use.
- Plot 2D functions in 3D
- Customizable grid display
- Multiple color themes
- Adjustable rendering quality
- Save formulas for later
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Plot graphs of 2-dimensional functions in 3D. Enter the formula for the function and the range you want to plot. Features: - toggle grid display - different color themes - contol speed and quality with the number of tiles - save formulas for later use - retina display support
Quantum Mechanics
Explore various theories on the model and structure of atoms. This app details concepts like atomic postulates, photon mechanisms, and models for hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, and oxygen. It also covers related physics principles such as gravity, electromagnetism, and time.
- Atomic structure theories
- Models of various elements
- Photon mechanism explanations
- Gravity and electromagnetism concepts
- Time and electricity principles
- Mathematical algorithms
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Different theories about model and structure of atoms. Contents: - Set variables - Postulates - Mechanism of photons - (H) Hydrogen model - (H₂) model - (H₃) model - (H₄) model - (He) Helium-4 model - (He) Helium-5 model - (Li) Lithium-5 model - (Li) Lithium-6 model - (Li) Lithium-7 model - (Be) Beryllium-7 model - (Be) Beryllium-8 model - (Be) Beryllium-9 model - (Be) Beryllium-10 model - (B) Boron-8 model - (B) Boron-9 model - (B) Boron-10 model - (C) Carbon-10 model - (C) Carbon-11 model - (C) Carbon-12 model - (C) Carbon-13 model - (N) Nitrogen-11 model - (N) Nitrogen-12 model - (N) Nitrogen-13 model - (N) Nitrogen-14 model - (O) Oxygen-13 model - (O) Oxygen-14 model - (O) Oxygen-15 model - (O) Oxygen-16 model - (O) Oxygen-17 model - Flame (2 H₂ + O₂ > 2 H₂O) - Point of gravity - The sun doesn't shine and warm - Rays of cold - Climate control - Fifth Element - Excess energy - Electromagnetism - Gravity, Coulomb's law - Capacitor. Law of equilibrium - Atom - Radiowaves, Light, X-rays - Just Gravity - Just Gravity 2 - Just Gravity 3 - Time - Electricity - Time Mathematics - Sin approximation algorithm
Screenshots
Verdict
The clearest difference is price: Quantum Mechanics at Free against 3D Plotter XL's $1.99. Quantum Mechanics also leads on review sentiment (43% vs 0%) and rating (4.5 vs 1.0). On 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
Quantum Mechanics is free to download; 3D Plotter XL costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Quantum Mechanics holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Quantum Mechanics has 179 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of 3D Plotter XL's written reviews are positive against 43% of Quantum Mechanics's.
3D Plotter XL ships an update every 12 months, Quantum Mechanics every 3 weeks. The most recent releases landed on October 20, 2026 and October 22, 2026 respectively.
| Parameter | 3D Plotter XL | Quantum Mechanics |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 1.0 (1 ratings) | 4.5 (179 ratings) — better |
| Positive reviews | 0.0% of reviews | 43.5% of reviews — better |
| Number of ratings | 1 | 179 — better |
| Update frequency | Every 12 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Piet Jonas | Vitalii Gryniuk |
Customer experience
3D Plotter XL
Quantum Mechanics
In-app purchases
3D Plotter XL
No in-app purchases
Quantum Mechanics
No in-app purchases
Questions
Is 3D Plotter XL free?
Is Quantum Mechanics free?
Which has better reviews, 3D Plotter XL or Quantum Mechanics?
Do 3D Plotter XL or Quantum Mechanics have ads?
Which is updated more often, 3D Plotter XL or Quantum Mechanics?
Other comparisons
