# Arc Calculator Pro vs Calculate CNC

The clearest difference is price: Calculate CNC at Free against Arc Calculator Pro's $3.99. Calculate CNC also leads on update cadence (every 5 days vs every 41 months). Arc Calculator Pro's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Calculate CNC is free to download; Arc Calculator Pro costs $3.99 up front. Calculate CNC sells 1 in-app purchase, starting at $1.99 per month. Arc Calculator Pro asks for nothing beyond the download.

Arc Calculator Pro ships an update every 41 months, Calculate CNC every 5 days. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Arc Calculator Pro | Calculate CNC |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 5 days** |
| Monetization | Paid | — |
| Size | 2 MB | 6 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Imran Pinjara](https://appshunter.io/developer/1484488781) | [JEFFREY KYLE THOMPSON](https://appshunter.io/developer/6777596386) |

## What reviewers say

### Arc Calculator Pro

[App page](https://appshunter.io/ios/app/arc-calculator-pro/id1491369908)

This utility app provides precise calculations for various arc measurements, including length, angle, radius, and area. It supports both millimeters and inches, making it ideal for fabrication and engineering tasks. The app is designed for high performance and offline use.

**Highlights:** Arc Length Calculation, Arc Angle Calculation, Arc Radius Calculation, Arc Segment Area Calculation, Arc Sector Area Calculation, Supports mm and inches, Offline functionality

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

**In-app purchases:** none


### Calculate CNC

[App page](https://appshunter.io/ios/app/calculate-cnc-lathe-g-code/id6782482754)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |


## Frequently asked questions

### Is Arc Calculator Pro free?

Arc Calculator Pro costs $3.99, with no in-app purchases.

### Is Calculate CNC free?

Calculate CNC is free to download, with in-app purchases available.

### Do Arc Calculator Pro or Calculate CNC have ads?

Neither Arc Calculator Pro nor Calculate CNC shows ads.

### Which is updated more often, Arc Calculator Pro or Calculate CNC?

Arc Calculator Pro ships an update every 41 months, and Calculate CNC every 5 days. Most recently, Arc Calculator Pro was updated on October 17, 2026 and Calculate CNC on October 12, 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.*