# i vs iNC

The clearest difference is rating: iNC at 5.0 against i's 2.6. iNC also leads on update cadence (weekly vs every 13 months). i's advantage is in-app purchases (none vs 2) and ratings volume (9 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. iNC sells 2 in-app purchases, starting at $1.99 per month. i asks for nothing beyond the download.

iNC holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: i has 9 ratings behind it against 1, so its average is the more settled of the two.

i ships an update every 13 months, iNC weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | i | iNC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (9 ratings)](https://appshunter.io/ios/app/i-machinist/id1456473668/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/inc-mill-cnc-g-code-simulator/id6755829129/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 8 MB | 146 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [ilan TETRUASHVILI](https://appshunter.io/developer/940821251) | [乐勇 刘](https://appshunter.io/developer/1856258038) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-machinist/id1456473668)

This utility app assists machinists with CNC calculations, including cutting speed, RPM, and feed rate. It also provides databases for hole and shaft tolerances, as well as detailed thread specifications.

**Highlights:** Cutting speed calculation, RPM calculation, Feed rate calculation, Hole and shaft tolerance database, Thread data, Milling, drilling, and turning operations

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

**In-app purchases:** none


### iNC

[App page](https://appshunter.io/ios/app/inc-mill-cnc-g-code-simulator/id6755829129)

This app provides a portable CNC workstation for editing, simulating, and calculating machining parameters. It allows for on-site tuning, travel support, and confidential machining without cloud dependency. Features include process calculators, an NC program editor, and a 3D toolpath viewer.

**Highlights:** Smart NC/G-code editing, CNC simulation, Process calculators, 3D toolpath viewer, Local-first file processing, Large program handling

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscribe Monthly | $1.99 | per month |
| Subscribe Yearly | $17.99 | per year |


## Frequently asked questions

### Is i free?

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

### Is iNC free?

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

### Which has better reviews, i or iNC?

iNC is rated higher. i averages 2.6 out of 5 from 9 ratings, while iNC averages 5.0 from 1 ratings.

### Do i or iNC have ads?

Neither i nor iNC shows ads.

### Which is updated more often, i or iNC?

i ships an update every 13 months, and iNC weekly. Most recently, i was updated on October 24, 2026 and iNC on October 24, 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.*