# Walter Feeds & Speeds vs Thread Calculator

The clearest difference is rating: Thread Calculator at 4.4 against Walter Feeds & Speeds's 2.2. Walter Feeds & Speeds's advantage is ads (none vs shown) and update cadence (every 6 months vs every 18 months). On price, review sentiment, 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 2.2. Both are backed by a comparable volume of ratings — 9 and 14 respectively. Written reviews complicate that: 40% of Walter Feeds & Speeds'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.

Walter Feeds & Speeds ships an update every 6 months, Thread Calculator every 18 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Walter Feeds & Speeds | Thread Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (9 ratings)](https://appshunter.io/ios/app/walter-feeds-and-speeds/id454963587/reviews) | **[4.4 (14 ratings)](https://appshunter.io/ios/app/thread-calculator/id1559560290/reviews)** |
| Number of ratings | 9 | **14** |
| Positive reviews | **40.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 months** | Every 18 months |
| Monetization | **Free** | Ad-supported |
| Size | 159 MB | 25 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Walter-AG](https://appshunter.io/developer/423564215) | [GSR Gustav Stursberg GmbH](https://appshunter.io/developer/1559560292) |

## What reviewers say

### Walter Feeds & Speeds

[App page](https://appshunter.io/ios/app/walter-feeds-and-speeds/id454963587)

This app helps determine optimal feed rate and cutting speed values for various machining operations. It covers turning, drilling, threading, and milling with indexable inserts. Navigate through machining operations, materials, and tool types to find precise values.

**Highlights:** Determine feed rate and cutting speed, Supports turning, drilling, threading, milling, Indexable insert tool compatibility, Intuitive navigation, Workpiece material selection

**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 Walter Feeds & Speeds free?

Walter Feeds & Speeds 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, Walter Feeds & Speeds or Thread Calculator?

Thread Calculator is rated higher. Walter Feeds & Speeds averages 2.2 out of 5 from 9 ratings, while Thread Calculator averages 4.4 from 14 ratings.

### Do Walter Feeds & Speeds or Thread Calculator have ads?

Thread Calculator shows ads; Walter Feeds & Speeds does not.

### Which is updated more often, Walter Feeds & Speeds or Thread Calculator?

Walter Feeds & Speeds ships an update every 6 months, and Thread Calculator every 18 months. Most recently, Walter Feeds & Speeds was updated on November 1, 2026 and Thread Calculator on November 3, 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.*