Torque Wrench Extension Calc. vs Torque Source
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 precise torque is applied to fasteners by adjusting the wrench's value. Supports English, French, German, and Spanish.
- Torque wrench extension calculation
- Adjustable fastener torque
- Multi-language support (EN, FR, DE, ES)
- Accurate torque application
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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.
Torque Source
This utility app assists torque wrench users with two essential calculators for unit conversion and adapter-based torque adjustments. It also provides helpful usage tips and links to additional resources.
- Torque unit conversion calculator
- Torque wrench adapter adjustment calculator
- Usage hints for torque wrenches
- Links to Snap-on resources
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Snap-on “Torque Source” is a convenient resource tool for torque wrench users. This app includes two torque calculators, one for torque unit of measure conversion and another for adjusting the torque wrench setting when using an adapter – and therefore changing the overall length in the horizontal plane from the middle of the handle to the center of the faster. This application also includes torque wrench usage helpful hints and other Snap-on links.
Screenshots
Verdict
Torque Wrench Extension Calc. and Torque Source both sit at 3.3 stars, but that hides the real split: 86% of Torque Wrench Extension Calc.'s written reviews are positive against 14% of Torque Source's. Torque Source's advantage is update cadence (every 8 days vs every 6 months) and iOS requirement (7.0 vs 9.0). On price, rating, ratings volume and ads 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.
Torque Wrench Extension Calc. holds the better App Store score, 3.3 against 3.1. Both are backed by a comparable volume of ratings — 7 and 16 respectively. Written reviews point the same way: 86% of Torque Wrench Extension Calc.'s written reviews are positive against 14% of Torque Source's.
Torque Wrench Extension Calc. ships an update every 6 months, Torque Source every 8 days. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.
| Parameter | Torque Wrench Extension Calc. | Torque Source |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (7 ratings) — better | 3.1 (16 ratings) |
| Positive reviews | 85.7% of reviews — better | 14.3% of reviews |
| Number of ratings | 7 | 16 — better |
| Update frequency | Every 6 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 | 7.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Norbar | Snap-on Inc. |
Customer experience
Torque Wrench Extension Calc.
Torque Source
In-app purchases
Torque Wrench Extension Calc.
No in-app purchases
Torque Source
No in-app purchases
Questions
Is Torque Wrench Extension Calc. free?
Is Torque Source free?
Which has better reviews, Torque Wrench Extension Calc. or Torque Source?
Do Torque Wrench Extension Calc. or Torque Source have ads?
Which is updated more often, Torque Wrench Extension Calc. or Torque Source?
Other comparisons
