# 3D Plotter XL vs Quantum Mechanics

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.

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.

## The numbers

| Metric | 3D Plotter XL | Quantum Mechanics |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/3d-plotter-xl/id368176437/reviews) | **[4.5 (179 ratings)](https://appshunter.io/ios/app/quantum-mechanics-theories/id1159692911/reviews)** |
| Number of ratings | 1 | **179** |
| Positive reviews | 0.0% of reviews | **43.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 50 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [Vitalii Gryniuk](https://appshunter.io/developer/1007630419) |

## What reviewers say

### 3D Plotter XL

[App page](https://appshunter.io/ios/app/3d-plotter-xl/id368176437)

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.

**Highlights:** Plot 2D functions in 3D, Customizable grid display, Multiple color themes, Adjustable rendering quality, Save formulas for later

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Quantum Mechanics

[App page](https://appshunter.io/ios/app/quantum-mechanics-theories/id1159692911)

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.

**Highlights:** Atomic structure theories, Models of various elements, Photon mechanism explanations, Gravity and electromagnetism concepts, Time and electricity principles, Mathematical algorithms

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 3D Plotter XL free?

3D Plotter XL costs $1.99, with no in-app purchases.

### Is Quantum Mechanics free?

Quantum Mechanics is free to download, with no in-app purchases.

### Which has better reviews, 3D Plotter XL or Quantum Mechanics?

Quantum Mechanics is rated higher. 3D Plotter XL averages 1.0 out of 5 from 1 ratings, while Quantum Mechanics averages 4.5 from 179 ratings.

### Do 3D Plotter XL or Quantum Mechanics have ads?

Neither 3D Plotter XL nor Quantum Mechanics shows ads.

### Which is updated more often, 3D Plotter XL or Quantum Mechanics?

3D Plotter XL ships an update every 12 months, and Quantum Mechanics every 3 weeks. Most recently, 3D Plotter XL was updated on October 20, 2026 and Quantum Mechanics on October 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*