# Walter Machining Calculator vs ThreadKing

The clearest difference is rating: ThreadKing at 4.7 against Walter Machining Calculator's 3.0. ThreadKing also leads on review sentiment (100% vs 63%) and update cadence (every 6 days vs every 18 months). On price, ratings volume, 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.

ThreadKing holds the better App Store score, 4.7 against 3.0. Both are backed by a comparable volume of ratings — 5 and 13 respectively. Written reviews point the same way: 63% of Walter Machining Calculator's written reviews are positive against 100% of ThreadKing's.

Walter Machining Calculator ships an update every 18 months, ThreadKing every 6 days. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Walter Machining Calculator | ThreadKing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (5 ratings)](https://appshunter.io/ios/app/walter-machining-calculator/id423564212/reviews) | **[4.7 (13 ratings)](https://appshunter.io/ios/app/threadking/id1073753793/reviews)** |
| Number of ratings | 5 | **13** |
| Positive reviews | 62.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 6 days** |
| Monetization | Free | Free |
| Size | 84 MB | 7 MB |
| Requires iOS | 12.0 | **8.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Walter-AG](https://appshunter.io/developer/423564215) | [Motionics LLC](https://appshunter.io/developer/424498959) |

## What reviewers say

### Walter Machining Calculator

[App page](https://appshunter.io/ios/app/walter-machining-calculator/id423564212)

Calculate machining time, power, torque, and cutting force for various operations. Compare existing tools with new ones to project potential savings.

**Highlights:** Calculate machining time, power, and torque, Determine cutting force and metal removal rate, Support for milling, drilling, boring, turning, and grooving, Thread tapping, forming, and milling calculations, Material selection for calculations, Savings calculator for tool comparison

**Features:** macOS Compatibility

**In-app purchases:** none


### ThreadKing

[App page](https://appshunter.io/ios/app/threadking/id1073753793)

This app serves as a comprehensive reference and calculator for various thread types and dimensions. It provides detailed information on Metric and UN threads, including tap sizes and thread calculations for cutting and forming taps. Users can also find drill size charts and calculate RPM and feed rates for different materials.

**Highlights:** Metric and UN thread reference, Drill/Tap size charts, Pipe thread information, Cutting tap calculator, Forming tap calculator, RPM and feed rate calculator, Thread dimension details

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

**In-app purchases:** none


## Frequently asked questions

### Is Walter Machining Calculator free?

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

### Is ThreadKing free?

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

### Which has better reviews, Walter Machining Calculator or ThreadKing?

ThreadKing is rated higher. Walter Machining Calculator averages 3.0 out of 5 from 5 ratings, while ThreadKing averages 4.7 from 13 ratings.

### Do Walter Machining Calculator or ThreadKing have ads?

Neither Walter Machining Calculator nor ThreadKing shows ads.

### Which is updated more often, Walter Machining Calculator or ThreadKing?

Walter Machining Calculator ships an update every 18 months, and ThreadKing every 6 days. Most recently, Walter Machining Calculator was updated on October 15, 2026 and ThreadKing on October 14, 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.*