# ArcCalc vs The Phillips Machinist

The clearest difference is ads: ArcCalc at none against The Phillips Machinist's shown. ArcCalc also leads on monetization model (free vs free with in-app purchases) and review sentiment (88% vs 78%). The Phillips Machinist's advantage is update cadence (every 6 weeks vs every 5 months). On price, rating, ratings volume and in-app purchases 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 4.6. Both are backed by a comparable volume of ratings — 277 and 394 respectively. Written reviews point the same way: 88% of ArcCalc's written reviews are positive against 78% of The Phillips Machinist's.

ArcCalc ships an update every 5 months, The Phillips Machinist every 6 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | ArcCalc | The Phillips Machinist |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (277 ratings)](https://appshunter.io/ios/app/arccalc/id607185155/reviews)** | [4.6 (394 ratings)](https://appshunter.io/ios/app/the-phillips-machinist/id1046408069/reviews) |
| Number of ratings | 277 | **394** |
| Positive reviews | **88.1% of reviews** | 78.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 152 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roseller Sunga](https://appshunter.io/developer/607185158) | [Phillips Corporation](https://appshunter.io/developer/1141872391) |

## 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


### The Phillips Machinist

[App page](https://appshunter.io/ios/app/the-phillips-machinist/id1046408069)

Access essential machine codes, calculators, and practical resources for machinists. Get direct support from engineers and explore a library of machining information. Enhance your productivity and problem-solving on the shop floor.

**Highlights:** Haas G & M reference codes, Error and Alarm Codes, Calculator library (Inch/Metric), Speeds & Feeds calculator, Direct contact with engineers, Customizable machine and interest tracking, FAQ library

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to navigate
- 👍 Comprehensive information
- 👍 Great for machinists
- 👍 Useful for school and work
- 👍 Handy resource

**What reviewers complain about**

- 🐛 White screen on calculator
- 🐛 Speeds and feeds calculator not working
- 🐛 Unable to sign in
- 🐛 App crashes instantly
- 🐛 No volume on videos

**Reported bugs**

- Cannot sign in via Apple
- Password incorrect error
- Cannot reset password
- White screen on speed and feeds calculator (iPhone)
- Speeds and feeds calculator boxes not proper

**Requested features**

- Fix sign-in issues
- Resolve white screen on calculator
- Enable offline functionality
- Add volume to videos


## Frequently asked questions

### Is ArcCalc free?

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

### Is The Phillips Machinist free?

The Phillips Machinist is free to download, with no in-app purchases.

### Which has better reviews, ArcCalc or The Phillips Machinist?

ArcCalc is rated higher. ArcCalc averages 4.8 out of 5 from 277 ratings, while The Phillips Machinist averages 4.6 from 394 ratings.

### Do ArcCalc or The Phillips Machinist have ads?

The Phillips Machinist shows ads; ArcCalc does not.

### Which is updated more often, ArcCalc or The Phillips Machinist?

ArcCalc ships an update every 5 months, and The Phillips Machinist every 6 weeks. Most recently, ArcCalc was updated on November 1, 2026 and The Phillips Machinist on November 2, 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.*