# Torque Unit Calculator vs Valve Torque Calculator

The clearest difference is update cadence: Valve Torque Calculator at every 12 months against Torque Unit Calculator's every 30 months. Valve Torque Calculator also leads on device support (3 vs 1) and iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Torque Unit Calculator ships an update every 30 months, Valve Torque Calculator every 12 months. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Torque Unit Calculator | Valve Torque Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/valve-torque-calculator/id1163184803/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 12 months** |
| Monetization | Free | Free |
| Size | 1 MB | 30 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Norbar](https://appshunter.io/developer/410824699) | [A.W. Chesterton Company](https://appshunter.io/developer/948643824) |

## What reviewers say

### Torque Unit Calculator

[App page](https://appshunter.io/ios/app/torque-unit-calculator/id581212286)

Easily convert between various torque units with this utility application. Developed by Norbar Torque Tools, it offers a straightforward way to handle torque measurements.

**Highlights:** Converts any torque unit to any other, Developed by Norbar Torque Tools, Simple and straightforward interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Valve Torque Calculator

[App page](https://appshunter.io/ios/app/valve-torque-calculator/id1163184803)

Calculates the precise gland bolt torque needed for packing valves to meet modern fugitive emissions standards. It helps balance low leakage with acceptable stem friction, ensuring compliance with EPA Method 21 for up to 5 years.

**Highlights:** Calculates gland bolt torque, Supports Chesterton style 1622 and 1724E packing, Input stuffing box and stud dimensions, Accounts for lubricant used, Supports Inch and Metric units, Ensures leak levels below 100ppm

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Torque Unit Calculator free?

Torque Unit Calculator is free to download, with no in-app purchases.

### Is Valve Torque Calculator free?

Valve Torque Calculator is free to download, with no in-app purchases.

### Do Torque Unit Calculator or Valve Torque Calculator have ads?

Neither Torque Unit Calculator nor Valve Torque Calculator shows ads.

### Which is updated more often, Torque Unit Calculator or Valve Torque Calculator?

Torque Unit Calculator ships an update every 30 months, and Valve Torque Calculator every 12 months. Most recently, Torque Unit Calculator was updated on October 23, 2026 and Valve Torque Calculator on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*