# Vortex Tool Co. vs inch mm converter

The clearest difference is rating: inch mm converter at 4.6 against Vortex Tool Co.'s 3.8. inch mm converter also leads on ratings volume (175 vs 4). Vortex Tool Co.'s advantage is ads (none vs shown) and update cadence (every 3 months vs every 12 months). On price, review sentiment, in-app purchases and device support there is nothing between them.

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

inch mm converter holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: inch mm converter has 175 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 75% of Vortex Tool Co.'s written reviews are positive against 82% of inch mm converter's.

Vortex Tool Co. ships an update every 3 months, inch mm converter every 12 months. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Vortex Tool Co. | inch mm converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (4 ratings)](https://appshunter.io/ios/app/vortex-tool-co/id908151886/reviews) | **[4.6 (175 ratings)](https://appshunter.io/ios/app/inch-mm-converter/id6740137317/reviews)** |
| Number of ratings | 4 | **175** |
| Positive reviews | 75.0% of reviews | **82.4% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 12 months |
| Monetization | **Free** | Ad-supported |
| Size | 25 MB | 12 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BiznetIS Net Inc](https://appshunter.io/developer/682007657) | [SDG CODE DOO NIS](https://appshunter.io/developer/1343251532) |

## What reviewers say

### Vortex Tool Co.

[App page](https://appshunter.io/ios/app/vortex-tool-co/id908151886)

This utility helps CNC router operators select the right tool for their cutting tasks. It provides specific tool suggestions, feed rates, and RPMs based on your material and cut type. The app also includes helpful calculators for chip load, RPM, and feed rate.

**Highlights:** Tool selection based on material and cut type, Specific tool suggestions, Feed rate and RPM recommendations, Chip load calculator, RPM calculator, Feed rate calculator, Metric conversion

**Features:** macOS Compatibility

**In-app purchases:** none


### inch mm converter

[App page](https://appshunter.io/ios/app/inch-mm-converter/id6740137317)

Easily convert measurements between inches and millimeters. This straightforward tool simplifies length conversions for everyday use.

**Highlights:** Inch to millimeter conversion, Millimeter to inch conversion, Easy to use interface, Simple measurement tool

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vortex Tool Co. free?

Vortex Tool Co. is free to download, with no in-app purchases.

### Is inch mm converter free?

inch mm converter is free to download, with no in-app purchases.

### Which has better reviews, Vortex Tool Co. or inch mm converter?

inch mm converter is rated higher. Vortex Tool Co. averages 3.8 out of 5 from 4 ratings, while inch mm converter averages 4.6 from 175 ratings.

### Do Vortex Tool Co. or inch mm converter have ads?

inch mm converter shows ads; Vortex Tool Co. does not.

### Which is updated more often, Vortex Tool Co. or inch mm converter?

Vortex Tool Co. ships an update every 3 months, and inch mm converter every 12 months. Most recently, Vortex Tool Co. was updated on October 6, 2026 and inch mm converter on October 25, 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.*