# Trigonometry calc vs CNC VMC Simulator

Trigonometry calc and CNC VMC Simulator both sit at 3.0 stars, but that hides the real split: 48% of CNC VMC Simulator's written reviews are positive against 0% of Trigonometry calc's. CNC VMC Simulator also leads on in-app purchases (none vs 1) and ads (none vs shown). Trigonometry calc's advantage is price (Free vs $6.99). On rating, update cadence, device support and iOS requirement there is nothing between them.

Trigonometry calc is free to download; CNC VMC Simulator costs $6.99 up front. Trigonometry calc sells 1 one-off in-app purchase. CNC VMC Simulator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.0 for Trigonometry calc against 2.9 for CNC VMC Simulator. Both are backed by a comparable volume of ratings — 2 and 9 respectively. Written reviews are what separate them: 0% of Trigonometry calc's written reviews are positive against 48% of CNC VMC Simulator's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 6, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Trigonometry calc | CNC VMC Simulator |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-calc/id1306864057/reviews)** | [2.9 (9 ratings)](https://appshunter.io/ios/app/cnc-vmc-simulator/id1614666556/reviews) |
| Number of ratings | 2 | **9** |
| Positive reviews | 0.0% of reviews | **48.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 10 MB | 43 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bo Kalvslund](https://appshunter.io/developer/572272193) | [旭 陈](https://appshunter.io/developer/6780413573) |

## What reviewers say

### Trigonometry calc

[App page](https://appshunter.io/ios/app/trigonometry-calc/id1306864057)

Calculate side lengths and angles in right-angled triangles using Pythagorean theorem and trigonometry functions. Learn basic trigonometry concepts. An optional premium version removes ads and unlocks a general triangle calculator.

**Highlights:** Calculate side lengths, Calculate angles, Pythagorean Theorem, Trigonometry functions, Learn simple trigonometry, General triangle calculator (premium)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


### 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 Trigonometry calc free?

Trigonometry calc 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, Trigonometry calc or CNC VMC Simulator?

Trigonometry calc is rated higher. Trigonometry calc averages 3.0 out of 5 from 2 ratings, while CNC VMC Simulator averages 2.9 from 9 ratings.

### Do Trigonometry calc or CNC VMC Simulator have ads?

Trigonometry calc shows ads; CNC VMC Simulator does not.

### Which is updated more often, Trigonometry calc or CNC VMC Simulator?

Trigonometry calc ships an update every 3 months, and CNC VMC Simulator every 3 months. Most recently, Trigonometry calc was updated on September 6, 2026 and CNC VMC Simulator on September 23, 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.*