# EMCO vs i

The clearest difference is update cadence: EMCO at every 3 months against i's every 13 months. EMCO also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

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

EMCO ships an update every 3 months, i every 13 months. The most recent releases landed on May 28, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | EMCO | i |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.6 (9 ratings)](https://appshunter.io/ios/app/i-machinist/id1456473668/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 13 months |
| Monetization | — | Free |
| Size | 11 MB | 8 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [EMCO-TEST Prüfmaschinen GmbH](https://appshunter.io/developer/914831707) | [ilan TETRUASHVILI](https://appshunter.io/developer/940821251) |

## What reviewers say

### EMCO

[App page](https://appshunter.io/ios/app/emco-test/id914831704)

**Features:** macOS Compatibility

**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 EMCO free?

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

### Is i free?

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

### Do EMCO or i have ads?

Neither EMCO nor i shows ads.

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

EMCO ships an update every 3 months, and i every 13 months. Most recently, EMCO was updated on May 28, 2026 and i on October 3, 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.*