Comparison

Thread Calculator vs CNC Path

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

Head to head
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.

About

CNC Path

This app serves as a mobile workspace for managing, editing, and visualizing CNC programs. It offers features like a local library for programs, a mobile-friendly editor, and on-device OCR for importing from images. Users can also simulate toolpaths and look up CNC instructions.

Highlights
  • Local Program Library
  • Mobile-friendly editor
  • OCR program import
  • Toolpath simulation
  • CNC instruction lookup
  • Syntax checking
Features
Read full description

CNC Path is an iPhone and iPad workspace for CNC professionals and learners to manage, edit, OCR-import, and visualize supported CNC programs. Key features: - Create, organize, import, and export CNC programs in a local Program Library - View and edit CNC program text with a mobile-friendly editor - Import programs from camera or images with on-device OCR and review the result before saving - Look up CNC instructions and their current support boundaries - Run lightweight toolpath simulation for supported basic instructions - Use OCR, import/export, syntax checking, and advanced macro-program, fixed-cycle, and arithmetic-expression simulation The Program Library, editing, instruction reference, and ordinary supported simulation remain free. OCR, import/export, syntax checking, macro programs, fixed cycles, and arithmetic-expression simulation require an active trial or membership. The seven-day trial starts only when selected and does not renew or charge. Monthly and Pro Lifetime Unlock prices are shown by the App Store. CNC Path provides auxiliary toolpath visualization only. It does not guarantee collision detection, machining safety, or complete real-machine verification. Users must manually verify OCR results and CNC programs. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Thread Calculator4 screens
CNC Path4 screens

Verdict

The call

The clearest difference is rating: CNC Path at 5.0 against Thread Calculator's 4.4. CNC Path also leads on ads (none vs shown) and update cadence (every 4 days vs every 18 months). Thread Calculator's advantage is in-app purchases (none vs 2) and ratings volume (14 vs 2). On price, device support and iOS requirement 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. CNC Path sells 2 in-app purchases, starting at $0.99 per month. Thread Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CNC Path holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Thread Calculator has 14 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Thread Calculator ships an update every 18 months, CNC Path every 4 days. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

Scorecard6 real differences · 4 level
Thread Calculator versus CNC Path: the parameters behind the verdict, then further details
ParameterThread CalculatorCNC Path
PriceFreeFree
Rating4.4 (14 ratings)5.0 (2 ratings) — better
Positive reviews33.3% of reviews—
Number of ratings14 — better2
Update frequencyEvery 18 monthsEvery 4 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size25 MB7 MB
Age rating4+4+
DeveloperGSR Gustav Stursberg GmbH宇 张

Customer experience

Thread Calculator

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

CNC Path

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Thread Calculator

No in-app purchases

2 purchases

CNC Path

Subscriptions1
  • Monthly Membership$0.991 Month
One-time1
  • 专业版永久解锁$7.99

Questions

Is Thread Calculator free?
Thread Calculator is free to download, with no in-app purchases.
Is CNC Path free?
CNC Path is free to download, with in-app purchases available.
Which has better reviews, Thread Calculator or CNC Path?
CNC Path is rated higher. Thread Calculator averages 4.4 out of 5 from 14 ratings, while CNC Path averages 5.0 from 2 ratings.
Do Thread Calculator or CNC Path have ads?
Thread Calculator shows ads; CNC Path does not.
Which is updated more often, Thread Calculator or CNC Path?
Thread Calculator ships an update every 18 months, and CNC Path every 4 days. Most recently, Thread Calculator was updated on October 24, 2026 and CNC Path on October 10, 2026.

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