# Trigonometry calc vs CNC Lathe Simulator Lite

The clearest difference is review sentiment: CNC Lathe Simulator Lite at 59% against Trigonometry calc's 0%. CNC Lathe Simulator Lite also leads on rating (3.7 vs 3.0) and in-app purchases (none vs 1). Trigonometry calc's advantage is iOS requirement (15.6 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Trigonometry calc sells 1 one-off in-app purchase. CNC Lathe Simulator Lite asks for nothing beyond the download.

CNC Lathe Simulator Lite holds the better App Store score, 3.7 against 3.0. That said, the two scores are not equally well evidenced: CNC Lathe Simulator Lite has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Trigonometry calc's written reviews are positive against 59% of CNC Lathe Simulator Lite's.

Trigonometry calc ships an update every 3 months, CNC Lathe Simulator Lite every 3 weeks. The most recent releases landed on September 6, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Trigonometry calc | CNC Lathe Simulator Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-calc/id1306864057/reviews) | **[3.7 (11 ratings)](https://appshunter.io/ios/app/cnc-lathe-simulator-lite/id1499335803/reviews)** |
| Number of ratings | 2 | **11** |
| Positive reviews | 0.0% of reviews | **59.2% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 10 MB | 38 MB |
| Requires iOS | **15.6** | 18.0 |
| 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 Lathe Simulator Lite

[App page](https://appshunter.io/ios/app/cnc-lathe-simulator-lite/id1499335803)

Learn CNC lathe programming with a 3D simulator. Practice G-code, edit control programs, and visualize machining operations. Ideal for students and aspiring metalworking specialists.

**Highlights:** G-code programming practice, 3D simulation of lathe operations, Control program file management, Cutting tool parameter setup, Step-by-step program execution, Simplified workpiece visualization

**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 Lathe Simulator Lite free?

CNC Lathe Simulator Lite is free to download, with no in-app purchases.

### Which has better reviews, Trigonometry calc or CNC Lathe Simulator Lite?

CNC Lathe Simulator Lite is rated higher. Trigonometry calc averages 3.0 out of 5 from 2 ratings, while CNC Lathe Simulator Lite averages 3.7 from 11 ratings.

### Do Trigonometry calc or CNC Lathe Simulator Lite have ads?

Trigonometry calc shows ads; CNC Lathe Simulator Lite does not.

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

Trigonometry calc ships an update every 3 months, and CNC Lathe Simulator Lite every 3 weeks. Most recently, Trigonometry calc was updated on September 6, 2026 and CNC Lathe Simulator Lite on September 7, 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.*