# Bolt Torque vs Sampling Calculator

Bolt Torque and Sampling Calculator both sit at 5.0 stars, but that hides the real split: 100% of Bolt Torque's written reviews are positive against 50% of Sampling Calculator's. Bolt Torque also leads on update cadence (monthly vs every 16 months). Sampling Calculator's advantage is price ($5.99 vs $9.99) and chart position (#173 vs unranked). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Bolt Torque costs $9.99 and Sampling Calculator $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Bolt Torque against 5.0 for Sampling Calculator. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 100% of Bolt Torque's written reviews are positive against 50% of Sampling Calculator's.

Bolt Torque ships an update monthly, Sampling Calculator every 16 months. The most recent releases landed on September 6, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Bolt Torque | Sampling Calculator |
| --- | --- | --- |
| Price | $9.99 | **$5.99** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/bolt-torque/id702964576/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sampling-calculator/id1304811062/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 16 months |
| Monetization | Paid | Paid |
| Best chart rank | — | **#173** |
| Size | 1 MB | 3 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jochen Autrata](https://appshunter.io/developer/702964579) | [Juan Manuel Alfredo Sanchez](https://appshunter.io/developer/1304811061) |

## What reviewers say

### Bolt Torque

[App page](https://appshunter.io/ios/app/bolt-torque/id702964576)

Calculate maximum tightening torque and preloads for various screws. Analyze preloads and stresses to ensure limits are met. All screw data is conveniently presented on a results page.

**Highlights:** Calculate tightening torque, Calculate preloads, Analyze stresses, Check limits, View screw data

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

**In-app purchases:** none


### Sampling Calculator

[App page](https://appshunter.io/ios/app/sampling-calculator/id1304811062)

**Currently charting:** #173 Top Paid · Productivity (US App Store)

This tool helps calculate sampling plans based on ANSI/ASQ Z1.4 and MIL-STD-105E standards. It supports various sampling size code letters and AQLs for normal, tightened, and reduced inspections. It serves as an aid to understanding and applying these quality control standards.

**Highlights:** ANSI/ASQ Z1.4 2013 compliance, MIL-STD-105E compliance, Single sampling size code letters, Normal, Tightened, and Reduced inspection, AQLs from 0.065 to 15

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

**In-app purchases:** none


## Frequently asked questions

### Is Bolt Torque free?

Bolt Torque costs $9.99, with no in-app purchases.

### Is Sampling Calculator free?

Sampling Calculator costs $5.99, with no in-app purchases.

### Which has better reviews, Bolt Torque or Sampling Calculator?

Bolt Torque and Sampling Calculator are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Bolt Torque or Sampling Calculator have ads?

Neither Bolt Torque nor Sampling Calculator shows ads.

### Which is updated more often, Bolt Torque or Sampling Calculator?

Bolt Torque ships an update monthly, and Sampling Calculator every 16 months. Most recently, Bolt Torque was updated on September 6, 2026 and Sampling Calculator on September 10, 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.*