# ArcCalc vs Machining Advisor Pro

The clearest difference is review sentiment: ArcCalc at 88% against Machining Advisor Pro's 17%. ArcCalc also leads on rating (4.8 vs 4.0) and ads (none vs shown). Machining Advisor Pro's advantage is update cadence (every 6 weeks vs every 5 months). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ArcCalc holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 232 and 162 respectively. Written reviews point the same way: 88% of ArcCalc's written reviews are positive against 17% of Machining Advisor Pro's.

ArcCalc ships an update every 5 months, Machining Advisor Pro every 6 weeks. The most recent releases landed on October 17, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ArcCalc | Machining Advisor Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (232 ratings)](https://appshunter.io/ios/app/arccalc/id607185155/reviews)** | [4.0 (162 ratings)](https://appshunter.io/ios/app/machining-advisor-pro/id1321154225/reviews) |
| Number of ratings | **232** | 162 |
| Positive reviews | **88.1% of reviews** | 17.2% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 3 MB | 61 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roseller Sunga](https://appshunter.io/developer/607185158) | [HARVEY TOOL COMPANY, LLC](https://appshunter.io/developer/1321041519) |

## What reviewers say

### ArcCalc

[App page](https://appshunter.io/ios/app/arccalc/id607185155)

This app calculates various parameters of circular arcs and segments. It supports multiple input combinations and offers unit flexibility for length and angles. Calculations are automatically saved and can be shared via email.

**Highlights:** Calculates 21 cases for circular arcs, Supports length units in feet, inches, meters, centimeters, millimeters, Angle units in degrees or radians, Automatic saving of results, Error checking for out-of-range inputs, Share results via email

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Accurate calculations
- 👍 Very useful for work
- 👍 Great for curved surfaces
- 👍 Simple and quick
- 👍 Free to use

**What reviewers complain about**

- 🐛 Optimization needed for large screens
- 🐛 No metric units (initially)
- 🐛 Needs more unit choices
- 🐛 Incompatible with older iOS versions

**Reported bugs**

- Not supported by iOS 11
- No longer works with iOS 11.0

**Requested features**

- Include diagram from webpage in app
- More unit choices, especially for radius
- More calculator apps from developer in one app
- Ability to set default units


### Machining Advisor Pro

[App page](https://appshunter.io/ios/app/machining-advisor-pro/id1321154225)

This app provides recommended running parameters for CNC machining, specifically for Helical Solutions and Harvey Tool products. It generates customized speeds and feeds based on your end mill, tool path, material, and machine setup, optimizing metal removal rates and shop productivity.

**Highlights:** CNC speeds and feeds calculator, Optimized for 30,000+ products, Supports 300+ material grades, Intuitive user interface, Customized setup options, Quick search functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ArcCalc free?

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

### Is Machining Advisor Pro free?

Machining Advisor Pro is free to download, with no in-app purchases.

### Which has better reviews, ArcCalc or Machining Advisor Pro?

ArcCalc is rated higher. ArcCalc averages 4.8 out of 5 from 232 ratings, while Machining Advisor Pro averages 4.0 from 162 ratings.

### Do ArcCalc or Machining Advisor Pro have ads?

Machining Advisor Pro shows ads; ArcCalc does not.

### Which is updated more often, ArcCalc or Machining Advisor Pro?

ArcCalc ships an update every 5 months, and Machining Advisor Pro every 6 weeks. Most recently, ArcCalc was updated on October 17, 2026 and Machining Advisor Pro on September 29, 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.*