# Walter Machining Calculator vs ThreadFon Multi

The clearest difference is rating: ThreadFon Multi at 3.8 against Walter Machining Calculator's 3.0. ThreadFon Multi also leads on update cadence (monthly vs every 18 months) and review sentiment (80% vs 57%). 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.

ThreadFon Multi holds the better App Store score, 3.8 against 3.0. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews point the same way: 57% of Walter Machining Calculator's written reviews are positive against 80% of ThreadFon Multi's.

Walter Machining Calculator ships an update every 18 months, ThreadFon Multi monthly. The most recent releases landed on June 2, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Walter Machining Calculator | ThreadFon Multi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (5 ratings)](https://appshunter.io/ios/app/walter-machining-calculator/id423564212/reviews) | **[3.8 (4 ratings)](https://appshunter.io/ios/app/threadfon-multi-thread-calc/id1602169811/reviews)** |
| Number of ratings | **5** | 4 |
| Positive reviews | 57.1% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Monthly** |
| Monetization | Free | Free |
| Size | 84 MB | 43 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Walter-AG](https://appshunter.io/developer/423564215) | [Dmitriy Trofimov](https://appshunter.io/developer/1598378710) |

## 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


### ThreadFon Multi

[App page](https://appshunter.io/ios/app/threadfon-multi-thread-calc/id1602169811)

This tool provides detailed insights into metric, inch, pipe, and trapezoidal cylindrical threads based on ISO and ASME standards. It helps users efficiently determine essential thread specifications for various thread types.

**Highlights:** ISO Metric thread support, Unified Inch thread support, Pipe thread support, Trapezoidal thread support, Based on ISO 965 and ASME B1.1 standards, Determines fundamental thread parameters

**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 ThreadFon Multi free?

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

### Which has better reviews, Walter Machining Calculator or ThreadFon Multi?

ThreadFon Multi is rated higher. Walter Machining Calculator averages 3.0 out of 5 from 5 ratings, while ThreadFon Multi averages 3.8 from 4 ratings.

### Do Walter Machining Calculator or ThreadFon Multi have ads?

Neither Walter Machining Calculator nor ThreadFon Multi shows ads.

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

Walter Machining Calculator ships an update every 18 months, and ThreadFon Multi monthly. Most recently, Walter Machining Calculator was updated on June 2, 2026 and ThreadFon Multi on September 9, 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.*