Comparison

Walter Feeds & Speeds vs Thread Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Determine feed rate and cutting speed
  • Supports turning, drilling, threading, milling
  • Indexable insert tool compatibility
  • Intuitive navigation
  • Workpiece material selection
Features
Read full description

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.

About

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.

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
Read full description

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

Walter Feeds & Speeds4 screens
Thread Calculator4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Walter Feeds & Speeds versus Thread Calculator: the parameters behind the verdict, then further details
ParameterWalter Feeds & SpeedsThread Calculator
PriceFreeFree
Rating2.2 (9 ratings)4.4 (14 ratings) — better
Positive reviews40.0% of reviews — better33.3% of reviews
Number of ratings914 — better
Update frequencyEvery 6 months — betterEvery 18 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size159 MB25 MB
Age rating4+4+
DeveloperWalter-AGGSR Gustav Stursberg GmbH

Customer experience

Walter Feeds & Speeds

All ratings8 ratings
Positive37.5%
Neutral0.0%
Negative62.5%
Written reviews5 reviews
Positive40.0%
Neutral20.0%
Negative40.0%

Thread Calculator

All ratings13 ratings
Positive84.6%
Neutral7.7%
Negative7.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

Walter Feeds & Speeds

No in-app purchases

None

Thread Calculator

No in-app purchases

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.

Other comparisons