NORO vs Thread Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NORO
Access 3D CAD data for a standard product range of pipes, mouldings, and distribution systems. Engineers and project managers can view models for steel and chromium-nickel steel components directly on mobile devices.
- 3D CAD data access
- Standard product range
- Pipes, mouldings, distribution systems
- Steel and chromium-nickel steel
- Compatible with major CAD systems
- Mobile device access
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The NORO app is a free download service for 3D CAD data of the standard product range of NORO Germany and provides engineers and project managers with direct access via mobile devices. Our product range includes pipes, mouldings and distribution systems with diameters of 80 to 600 mm made from steel (powder coated or galvanised) and chromium-nickel steel as well as associated pipe connection elements. The 3D CAD models are compliant with major world standards and are suitable for use in current CAD systems, such as CATIA®, Autodesk® Inventor®, SolidWorks®, Creo™ Parametric, NX™, AutoCAD®, Solid Edge®, etc.
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 review sentiment: NORO at 100% against Thread Calculator's 33%. NORO also leads on ads (none vs shown) and monetization model (free vs ad-supported). Thread Calculator's advantage is update cadence (every 18 months vs every 66 months). On price, in-app purchases and device support 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.
NORO ships an update every 66 months, Thread Calculator every 18 months. The most recent releases landed on August 12, 2026 and September 9, 2026 respectively.
| Parameter | NORO | Thread Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (13 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 33.3% of reviews |
| Number of ratings | — | 13 — better |
| Update frequency | Every 66 months | Every 18 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 52 MB | 25 MB |
| Age rating | 17+ | 4+ |
| Developer | NORO GmbH | GSR Gustav Stursberg GmbH |
Customer experience
NORO
Thread Calculator
In-app purchases
NORO
No in-app purchases
Thread Calculator
No in-app purchases
Questions
Is NORO free?
Is Thread Calculator free?
Do NORO or Thread Calculator have ads?
Which is updated more often, NORO or Thread Calculator?
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