# Machinist Tool vs Thread Calculator

The clearest difference is ads: Machinist Tool at none against Thread Calculator's shown. Machinist Tool also leads on update cadence (weekly vs every 18 months) and monetization model (free vs ad-supported). Thread Calculator's advantage is review sentiment (33% vs 0%). On price, rating, ratings volume 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.

Thread Calculator holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 6 and 14 respectively. Written reviews point the same way: 0% of Machinist Tool's written reviews are positive against 33% of Thread Calculator's.

Machinist Tool ships an update weekly, Thread Calculator every 18 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Machinist Tool | Thread Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (6 ratings)](https://appshunter.io/ios/app/machinist-tool/id1441141582/reviews) | **[4.4 (14 ratings)](https://appshunter.io/ios/app/thread-calculator/id1559560290/reviews)** |
| Number of ratings | 6 | **14** |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 18 months |
| Monetization | **Free** | Ad-supported |
| Size | 40 MB | 25 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Allied Machine & Engineering Corp.](https://appshunter.io/developer/467722618) | [GSR Gustav Stursberg GmbH](https://appshunter.io/developer/1559560292) |

## What reviewers say

### Machinist Tool

[App page](https://appshunter.io/ios/app/machinist-tool/id1441141582)

This app offers machinists and engineers tools and resources for holemaking and finishing applications. It helps convert cutting tool parameters and select the right boring inserts. Users can also access product literature and connect with an engineering helpline.

**Highlights:** Cutting tool parameter conversion, Boring insert selection guide, Access to product literature, Engineering helpline access, Holemaking and finishing resources

**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 Machinist Tool free?

Machinist Tool 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, Machinist Tool or Thread Calculator?

Thread Calculator is rated higher. Machinist Tool averages 4.2 out of 5 from 6 ratings, while Thread Calculator averages 4.4 from 14 ratings.

### Do Machinist Tool or Thread Calculator have ads?

Thread Calculator shows ads; Machinist Tool does not.

### Which is updated more often, Machinist Tool or Thread Calculator?

Machinist Tool ships an update weekly, and Thread Calculator every 18 months. Most recently, Machinist Tool was updated on October 24, 2026 and Thread Calculator 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.*