# Pythagoras Calculator vs CNC VMC Simulator

The clearest difference is price: Pythagoras Calculator at Free against CNC VMC Simulator's $6.99. Pythagoras Calculator also leads on rating (4.6 vs 2.9) and review sentiment (83% vs 48%). CNC VMC Simulator's advantage is in-app purchases (none vs 8). On ads, device support and iOS requirement there is nothing between them.

Pythagoras Calculator is free to download; CNC VMC Simulator costs $6.99 up front. Pythagoras Calculator sells 8 one-off in-app purchases. CNC VMC Simulator asks for nothing beyond the download.

Pythagoras Calculator holds the better App Store score, 4.6 against 2.9. That said, the two scores are not equally well evidenced: Pythagoras Calculator has 242 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 83% of Pythagoras Calculator's written reviews are positive against 48% of CNC VMC Simulator's.

Pythagoras Calculator ships an update every 3 weeks, CNC VMC Simulator every 3 months. Both last shipped on October 18, 2026.

## The numbers

| Metric | Pythagoras Calculator | CNC VMC Simulator |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | **[4.6 (242 ratings)](https://appshunter.io/ios/app/pythagoras-calculator/id1270384222/reviews)** | [2.9 (9 ratings)](https://appshunter.io/ios/app/cnc-vmc-simulator/id1614666556/reviews) |
| Number of ratings | **242** | 9 |
| Positive reviews | **83.0% of reviews** | 48.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 179 MB | 43 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [旭 陈](https://appshunter.io/developer/6780413573) |

## What reviewers say

### Pythagoras Calculator

[App page](https://appshunter.io/ios/app/pythagoras-calculator/id1270384222)

Easily calculate any side of a right-angled triangle using the Pythagorean theorem. Input two sides to find the third, with all calculations saved in a history. Supports fractions and offers an ad-free option.

**Highlights:** Pythagorean theorem calculations, Calculate any of the three sides, History of calculations, Supports fraction input, Shareable solutions, Ad-free option

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Remove Ads | $1.99 | one-time |
| Lifetime Access | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use and simple interface
- ✅ Accurate calculations for Pythagorean theorem
- 📚 Shows step-by-step solutions for learning
- 🚀 Fast and efficient computation
- 💼 Useful for construction and woodworking projects

**What reviewers complain about**

- 📢 Intrusive and annoying advertisements
- 💳 Deceptive payment practices and fraudulent charges
- 🔐 Suspicious credit card requirements for access
- ⚠️ Forced rating prompts
- ❌ Limited functionality (only works with 2 known sides)

**Reported bugs**

- App crashes or fails to calculate
- Paid ad removal not working properly
- Fraudulent payment processing through third-party sites
- Occasional incorrect calculation results
- App not functioning on iPhone 5SE and older devices

**Requested features**

- Calculate triangle angles
- Support angle-based calculations with one side
- Better monetization without aggressive ads
- Improved ratings system
- Real-time results display


### CNC VMC Simulator

[App page](https://appshunter.io/ios/app/cnc-vmc-simulator/id1614666556)

This app simulates CNC milling machine operations, allowing users to program and visualize tool paths in 3D. It helps beginners understand G-code programming for mechanical engineering.

**Highlights:** G-code programming editor, 3D tool path visualization, Control program execution, Geometric tool parameter settings, Machined surface visualization, G-code reference guide

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

**In-app purchases:** none


## Frequently asked questions

### Is Pythagoras Calculator free?

Pythagoras Calculator is free to download, with in-app purchases available.

### Is CNC VMC Simulator free?

CNC VMC Simulator costs $6.99, with no in-app purchases.

### Which has better reviews, Pythagoras Calculator or CNC VMC Simulator?

Pythagoras Calculator is rated higher. Pythagoras Calculator averages 4.6 out of 5 from 242 ratings, while CNC VMC Simulator averages 2.9 from 9 ratings.

### Do Pythagoras Calculator or CNC VMC Simulator have ads?

Neither Pythagoras Calculator nor CNC VMC Simulator shows ads.

### Which is updated more often, Pythagoras Calculator or CNC VMC Simulator?

Pythagoras Calculator ships an update every 3 weeks, and CNC VMC Simulator every 3 months. Most recently, Pythagoras Calculator was updated on October 18, 2026 and CNC VMC Simulator on October 18, 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.*