# CNC Code vs GD&T Check

The clearest difference is in-app purchases: GD&T Check at none against CNC Code's 2. CNC Code's advantage is device support (3 vs 1) and iOS requirement (15.5 vs 17.0). On price and ads there is nothing between them.

Both are free to download. CNC Code sells 2 in-app purchases, starting at $12.99 per year. GD&T Check asks for nothing beyond the download.

## The numbers

| Metric | CNC Code | GD&T Check |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gd-and-t-check/id6801021289/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Monetization | — | Free |
| Size | 190 MB | 1 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [ANTONIO BENEDETTO](https://appshunter.io/developer/1847048621) | [Alec Flavio Cardenas](https://appshunter.io/developer/6787530608) |

## What reviewers say

### CNC Code

[App page](https://appshunter.io/ios/app/cnc-code/id6754204124)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CNC Code Premium - Annual | $12.99 | per year |
| CNC Code Full Version | $12.99 | one-time |


### GD&T Check

[App page](https://appshunter.io/ios/app/gd-and-t-check/id6801021289)

This app helps mechanical engineering students verify their Geometric Dimensioning and Tolerancing (GD&T) callouts. It provides instant validation against ASME Y14.5-2018 rules, clear explanations of tolerances, and a comprehensive symbol reference library. All features work offline, making it a convenient study tool.

**Highlights:** GD&T callout validation, Plain-English explanations, Symbol reference library, ASME Y14.5-2018 rules, Offline functionality, Saved history log

**In-app purchases:** none


## Frequently asked questions

### Is CNC Code free?

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

### Is GD&T Check free?

GD&T Check is free to download, with no in-app purchases.

### Do CNC Code or GD&T Check have ads?

Neither CNC Code nor GD&T Check shows ads.

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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.*