# Thread Pitch Calculator vs GCode Scanner for CNC Machines

The clearest difference is review sentiment: GCode Scanner for CNC Machines at 100% against Thread Pitch Calculator's 17%. GCode Scanner for CNC Machines also leads on price (Free vs $4.99) and rating (5.0 vs 1.8). Thread Pitch Calculator's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 16.4). On ratings volume, ads and device support there is nothing between them.

GCode Scanner for CNC Machines is free to download; Thread Pitch Calculator costs $4.99 up front. GCode Scanner for CNC Machines sells 3 in-app purchases, starting at $4.99 per 7 days. Thread Pitch Calculator asks for nothing beyond the download.

GCode Scanner for CNC Machines holds the better App Store score, 5.0 against 1.8. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews point the same way: 17% of Thread Pitch Calculator's written reviews are positive against 100% of GCode Scanner for CNC Machines's.

Thread Pitch Calculator ships an update every 51 months, GCode Scanner for CNC Machines every 3 weeks. The most recent releases landed on September 29, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Thread Pitch Calculator | GCode Scanner for CNC Machines |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [1.8 (4 ratings)](https://appshunter.io/ios/app/thread-pitch-calculator/id1382184074/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gcode-scanner-for-cnc-machines/id6747010022/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | 16.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 51 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 77 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bhavinkumar Satashiya](https://appshunter.io/developer/1361485921) | [Jeremiah Moore](https://appshunter.io/developer/1695450531) |

## What reviewers say

### Thread Pitch Calculator

[App page](https://appshunter.io/ios/app/thread-pitch-calculator/id1382184074)

Easily measure the thread pitch of various screws and bolts directly on your device's screen. This utility app calibrates automatically to your screen width for accurate measurements of metric, US, NPT, and BSPT threads.

**Highlights:** Measure thread pitch on screen, Automatic screen width calibration, Supports metric thread sizes, Supports US thread sizes, Supports NPT and BSPT threads, Measures metric screw sizes

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

**In-app purchases:** none


### GCode Scanner for CNC Machines

[App page](https://appshunter.io/ios/app/gcode-scanner-for-cnc-machines/id6747010022)

This tool allows users to view and simulate CNC machine code (G-code) and 3D model files (STL) before production. It helps prevent errors, save tools, and reduce setup times for machinists, programmers, and engineers.

**Highlights:** G-code viewer with real-time toolpath playback, Error detection for gouges and over-travels, STL model viewer, Universal G-code compatibility, Shop-floor ready interface, Import from cloud storage or local device

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly Membership | $4.99 | per 7 days |
| Pro Monthly Membership | $7.99 | per month |
| Pro Annual Membership | $69.99 | per year |


## Frequently asked questions

### Is Thread Pitch Calculator free?

Thread Pitch Calculator costs $4.99, with no in-app purchases.

### Is GCode Scanner for CNC Machines free?

GCode Scanner for CNC Machines is free to download, with in-app purchases available.

### Which has better reviews, Thread Pitch Calculator or GCode Scanner for CNC Machines?

GCode Scanner for CNC Machines is rated higher. Thread Pitch Calculator averages 1.8 out of 5 from 4 ratings, while GCode Scanner for CNC Machines averages 5.0 from 3 ratings.

### Do Thread Pitch Calculator or GCode Scanner for CNC Machines have ads?

Neither Thread Pitch Calculator nor GCode Scanner for CNC Machines shows ads.

### Which is updated more often, Thread Pitch Calculator or GCode Scanner for CNC Machines?

Thread Pitch Calculator ships an update every 51 months, and GCode Scanner for CNC Machines every 3 weeks. Most recently, Thread Pitch Calculator was updated on September 29, 2026 and GCode Scanner for CNC Machines on September 27, 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.*