# CMI converter vs Thread Calculator

The clearest difference is review sentiment: CMI converter at 100% against Thread Calculator's 33%. CMI converter also leads on ads (none vs shown) and monetization model (free vs ad-supported). Thread Calculator's advantage is rating (4.4 vs 4.0) and ratings volume (14 vs 1). On price, 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.

Thread Calculator holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Thread Calculator has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of CMI converter's written reviews are positive against 33% of Thread Calculator's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | CMI converter | Thread Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/cmi-converter/id1479507506/reviews) | **[4.4 (14 ratings)](https://appshunter.io/ios/app/thread-calculator/id1559560290/reviews)** |
| Number of ratings | 1 | **14** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 18 months |
| Monetization | **Free** | Ad-supported |
| Size | 11 MB | 25 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hidenori Ishii](https://appshunter.io/developer/1453853542) | [GSR Gustav Stursberg GmbH](https://appshunter.io/developer/1559560292) |

## What reviewers say

### CMI converter

[App page](https://appshunter.io/ios/app/cmi-converter/id1479507506)

Easily convert length measurements between centimeters, millimeters, and inches. Input a value, and see the conversions instantly. Supports conversions from cm to mm and inches, mm to cm and inches, and inches to cm and mm.

**Highlights:** Convert cm to mm and inches, Convert mm to cm and inches, Convert inches to cm and mm, Real-time conversion upon input

**Features:** macOS Compatibility

**In-app purchases:** none


### Thread Calculator

[App page](https://appshunter.io/ios/app/thread-calculator/id1559560290)

This app provides a quick and easy way to calculate thread dimensions for various units, including tap hole sizes and bolt specifications. It helps metalworkers find precise measurements for internal and external threads without consulting tables.

**Highlights:** Thread cutting calculator for multiple units, Cold forming calculator, Thread repair calculator, Tap hole and bolt diameter calculation, Saves time compared to tables

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CMI converter free?

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

### Is Thread Calculator free?

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

### Which has better reviews, CMI converter or Thread Calculator?

Thread Calculator is rated higher. CMI converter averages 4.0 out of 5 from 1 ratings, while Thread Calculator averages 4.4 from 14 ratings.

### Do CMI converter or Thread Calculator have ads?

Thread Calculator shows ads; CMI converter does not.

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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.*