Comparison

NORO 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

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.

Highlights
  • 3D CAD data access
  • Standard product range
  • Pipes, mouldings, distribution systems
  • Steel and chromium-nickel steel
  • Compatible with major CAD systems
  • Mobile device access
Features
Read full description

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.

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

NORO4 screens
Thread Calculator4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
NORO versus Thread Calculator: the parameters behind the verdict, then further details
ParameterNOROThread Calculator
PriceFreeFree
Rating—4.3 (13 ratings) — better
Positive reviews100.0% of reviews — better33.3% of reviews
Number of ratings—13 — better
Update frequencyEvery 66 monthsEvery 18 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size52 MB25 MB
Age rating17+4+
DeveloperNORO GmbHGSR Gustav Stursberg GmbH

Customer experience

NORO

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Thread Calculator

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

In-app purchases

None

NORO

No in-app purchases

None

Thread Calculator

No in-app purchases

Questions

Is NORO free?
NORO is free to download, with no in-app purchases.
Is Thread Calculator free?
Thread Calculator is free to download, with no in-app purchases.
Do NORO or Thread Calculator have ads?
Thread Calculator shows ads; NORO does not.
Which is updated more often, NORO or Thread Calculator?
NORO ships an update every 66 months, and Thread Calculator every 18 months. Most recently, NORO was updated on August 12, 2026 and Thread Calculator on September 9, 2026.

Other comparisons