# i vs CNC

The clearest difference is price: i at Free against CNC's $1.99. CNC's advantage is review sentiment (50% vs 33%) and iOS requirement (11.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

i is free to download; CNC costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | i | CNC |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[2.6 (9 ratings)](https://appshunter.io/ios/app/i-machinist/id1456473668/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 33.3% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | — |
| Monetization | **Free** | Paid |
| Size | 8 MB | 16 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ilan TETRUASHVILI](https://appshunter.io/developer/940821251) | [Kalpesh Panchasara](https://appshunter.io/developer/1572467688) |

## 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


### CNC

[App page](https://appshunter.io/ios/app/cnc-vmc/id1572467686)

This app provides technical information and calculations for CNC and VMC machine operations. It includes details on machining codes, material properties, and geometric tolerances to aid in faster decision-making and efficient work.

**Highlights:** Material Weight Calculator, G Code and M Code Reference, Surface Finishing Grades, GD&T Symbols with Meanings, RPM and Feed Calculation, Thread Charts (BSF, BSW, Metric), Inch/mm Converter

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

**In-app purchases:** none


## Frequently asked questions

### Is i free?

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

### Is CNC free?

CNC costs $1.99, with no in-app purchases.

### Do i or CNC have ads?

Neither i nor CNC 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.*