# Torque Units Calculator vs Bolt Torque Spec Calc

The clearest difference is price: Torque Units Calculator at Free against Bolt Torque Spec Calc's $4.99. Torque Units Calculator also leads on rating (5.0 vs 3.0) and iOS requirement (9.0 vs 17.0). Bolt Torque Spec Calc's advantage is update cadence (every 3 weeks vs every 15 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Torque Units Calculator is free to download; Bolt Torque Spec Calc costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Torque Units Calculator holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Torque Units Calculator ships an update every 15 months, Bolt Torque Spec Calc every 3 weeks. The most recent releases landed on October 14, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Torque Units Calculator | Bolt Torque Spec Calc |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/torque-units-calculator/id410824696/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/bolt-torque-spec-calc/id6760930975/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Norbar](https://appshunter.io/developer/410824699) | [Shanghai Sheyuan Network Technology Co., Ltd.](https://appshunter.io/developer/1560626858) |

## What reviewers say

### Torque Units Calculator

[App page](https://appshunter.io/ios/app/torque-units-calculator/id410824696)

Easily convert between various torque units with this straightforward utility. Developed by Norbar Torque Tools, it provides a simple solution for all your torque conversion needs.

**Highlights:** Torque unit conversion, Supports all torque units, Developed by Norbar Torque Tools, Simple and straightforward interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Bolt Torque Spec Calc

[App page](https://appshunter.io/ios/app/bolt-torque-spec-calc/id6760930975)

Calculates bolt torque specifications for various SAE and metric sizes and grades. Provides results in both ft-lb and N·m, accounting for dry or lubricated conditions. Works offline without ads or subscriptions.

**Highlights:** SAE and Metric bolt specifications, 28 SAE and 17 Metric sizes, Dry vs. Lubricated multiplier, Torque in ft-lb and N·m, Offline functionality, Formula and K factor shown

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

**In-app purchases:** none


## Frequently asked questions

### Is Torque Units Calculator free?

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

### Is Bolt Torque Spec Calc free?

Bolt Torque Spec Calc costs $4.99, with no in-app purchases.

### Which has better reviews, Torque Units Calculator or Bolt Torque Spec Calc?

Torque Units Calculator is rated higher. Torque Units Calculator averages 5.0 out of 5 from 1 ratings, while Bolt Torque Spec Calc averages 3.0 from 1 ratings.

### Do Torque Units Calculator or Bolt Torque Spec Calc have ads?

Neither Torque Units Calculator nor Bolt Torque Spec Calc shows ads.

### Which is updated more often, Torque Units Calculator or Bolt Torque Spec Calc?

Torque Units Calculator ships an update every 15 months, and Bolt Torque Spec Calc every 3 weeks. Most recently, Torque Units Calculator was updated on October 14, 2026 and Bolt Torque Spec Calc on October 28, 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.*