# Cutting Tool App vs i

The clearest difference is review sentiment: i at 33% against Cutting Tool App's 0%. Cutting Tool App's advantage is update cadence (every 4 months vs every 13 months) and iOS requirement (14.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Cutting Tool App ships an update every 4 months, i every 13 months. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Cutting Tool App | i |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.6 (9 ratings)](https://appshunter.io/ios/app/i-machinist/id1456473668/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 13 months |
| Monetization | Free | Free |
| Size | 1 MB | 8 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Mitsubishi Materials Corporation](https://appshunter.io/developer/567696188) | [ilan TETRUASHVILI](https://appshunter.io/developer/940821251) |

## What reviewers say

### Cutting Tool App

[App page](https://appshunter.io/ios/app/cutting-tool-app/id567696185)

This application assists with calculations for carbide tools, including spindle speed and cutting speed. It supports various calculation types and provides access to online resources and inquiry services.

**Highlights:** Spindle speed and cutting speed calculation, Millind calculator, Turning calculator, Drilling calculator, Threading calculator, GHG emissions simulation, Online inquiry service

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Cutting Tool App free?

Cutting Tool App is free to download, with no in-app purchases.

### Is i free?

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

### Do Cutting Tool App or i have ads?

Neither Cutting Tool App nor i shows ads.

### Which is updated more often, Cutting Tool App or i?

Cutting Tool App ships an update every 4 months, and i every 13 months. Most recently, Cutting Tool App was updated on October 12, 2026 and i 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.*