Walter Feeds & Speeds vs Thread Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Walter Feeds & Speeds
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.
- Determine feed rate and cutting speed
- Supports turning, drilling, threading, milling
- Indexable insert tool compatibility
- Intuitive navigation
- Workpiece material selection
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Walter Feeds & Speeds is an intuitive app for determining base feed rate and cutting speed values. The app covers variety of machining operations in the field of Turning-, Drilling-, Threading- and Milling tools with indexable inserts. The intuitive navigation, from machining operation, work piece material, tool type and further parameters, will help you to determining the feed rate and cutting speed values.
Thread Calculator
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.
- Thread cutting calculator for multiple units
- Cold forming calculator
- Thread repair calculator
- Tap hole and bolt diameter calculation
- Saves time compared to tables
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The app includes: - A calculator for thread cutting for the following units: M, MF, UNC, UNEF, UNF, UNR, UNS, NPT, NPTF, NPSC, NPSF, NPSL, NPSM, BA, BSP, BSF, BSW, BSPP, TR, and TRF - A calculator for cold forming - A calculator for thread repair You want to know which tap hole you should drill for threading or which bolt you should use? With this app, you will find the desired measures in no time: Simply select the desired thread type, nominal size, and pitch and you will get the matching diameter for your project. This saves precious time you would have spent tediously searching for internal and external thread dimensions in tables. As this app is still in its development phase, new features will follow soon, so stay tuned! GSR Gustav Stursberg GmbH is a manufacturer for high-quality thread cutting tools with 130 years of operational experience in the area of threading tool production. The product portfolio includes a wide selection of tools for different areas of application. GSR taps, twist drills, round dies, and tool holders are manufactured to the highest quality standards in our own production facilities. The constant quality control during the production process guarantees a consistent good quality in all national as well as international production facilities. This requires enormous precision, which is reflected by our tools. Precision is in the details. Since 1889.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Walter Feeds & Speeds | Thread Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (9 ratings) | 4.4 (14 ratings) — better |
| Positive reviews | 40.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 9 | 14 — better |
| Update frequency | Every 6 months — better | Every 18 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 159 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Walter-AG | GSR Gustav Stursberg GmbH |
Customer experience
Walter Feeds & Speeds
Thread Calculator
In-app purchases
Walter Feeds & Speeds
No in-app purchases
Thread Calculator
No in-app purchases
Questions
Is Walter Feeds & Speeds free?
Is Thread Calculator free?
Which has better reviews, Walter Feeds & Speeds or Thread Calculator?
Do Walter Feeds & Speeds or Thread Calculator have ads?
Which is updated more often, Walter Feeds & Speeds or Thread Calculator?
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