Torque Wrench Extension Calc vs Catalyst by APSM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Torque Wrench Extension Calc
Calculate the correct torque wrench setting when using an extension. This tool helps ensure the proper torque is applied to fasteners by adjusting the wrench's value based on extension length. Supports English, French, German, and Spanish.
- Calculate torque with extensions
- Adjust wrench settings
- Multiple language support
- Fastener torque accuracy
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When you put an extension on a torque wrench, the torque applied to the fastener increases. Use the Norbar Torque Wrench Extension Calculator app to find what value you should set into the wrench to achieve the required fastener torque. The app comes in four language options, English, French, German & Spanish. The language option is only available on the initial loading of the app.
Catalyst by APSM
This mobile application enhances field operations for the APSM Software Platform. It allows users to perform tasks like logging, inspections, and managing work orders. Access essential documents and asset information conveniently, both online and offline.
- Online and offline field operations
- Logging and inspections
- Corrective work orders
- Download and review SOPs, MPs, TOS, P&IDs
- Access asset information
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The APSM App is designed to complement the APSM Software Platform by offering a streamlined mobile application for both online and limited offline field operations, encompassing tasks such as logging, inspections, and corrective work orders. This application provides users with convenient and rapid access to download and review essential documents, including Standard Operating Procedures (SOPs), Maintenance Procedures (MPs), Technical Operating Specifications (TOS), and P&IDs, in addition to asset information.
Screenshots
Verdict
The clearest difference is rating: Catalyst by APSM at 5.0 against Torque Wrench Extension Calc's 3.7. Catalyst by APSM also leads on update cadence (every 4 months vs every 45 months) and device support (3 vs 1). On price, ratings volume, ads 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.
Catalyst by APSM holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively.
Torque Wrench Extension Calc ships an update every 45 months, Catalyst by APSM every 4 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.
| Parameter | Torque Wrench Extension Calc | Catalyst by APSM |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 45 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 1 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Norbar | APSM, LLC |
Customer experience
Torque Wrench Extension Calc
Catalyst by APSM
In-app purchases
Torque Wrench Extension Calc
No in-app purchases
Catalyst by APSM
No in-app purchases
Questions
Is Torque Wrench Extension Calc free?
Is Catalyst by APSM free?
Which has better reviews, Torque Wrench Extension Calc or Catalyst by APSM?
Do Torque Wrench Extension Calc or Catalyst by APSM have ads?
Which is updated more often, Torque Wrench Extension Calc or Catalyst by APSM?
Other comparisons
