# Welding Toolbox 2 vs Fastener Dimensions

The clearest difference is review sentiment: Welding Toolbox 2 at 50% against Fastener Dimensions's 0%. Fastener Dimensions's advantage is update cadence (every 6 months vs every 29 months) and price ($4.99 vs $7.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Welding Toolbox 2 costs $7.99 and Fastener Dimensions $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Welding Toolbox 2 ships an update every 29 months, Fastener Dimensions every 6 months. The most recent releases landed on September 15, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Welding Toolbox 2 | Fastener Dimensions |
| --- | --- | --- |
| Price | $7.99 | **$4.99** |
| Rating | — | **[1.0 (2 ratings)](https://appshunter.io/ios/app/fastener-dimensions/id6476143105/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 6 months** |
| Monetization | Paid | Paid |
| Size | 29 MB | 62 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Parsify Technologies Antoni Kepinski](https://appshunter.io/developer/1546617908) | [Ajay Gorasiya](https://appshunter.io/developer/1455174866) |

## What reviewers say

### Welding Toolbox 2

[App page](https://appshunter.io/ios/app/welding-toolbox-2/id1546617906)

This app provides essential tools for welding inspection, including calculators for heat input, equivalent carbon content, critical metal parameters, and pitting resistance. It supports both metric and imperial systems and allows for data export.

**Highlights:** Heat input calculator, Equivalent carbon content calculator, Critical metal parameter calculator, Pitting resistance calculator, Metric & imperial system support, Result history and export, Open-source

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

**In-app purchases:** none


### Fastener Dimensions

[App page](https://appshunter.io/ios/app/fastener-dimensions/id6476143105)

This app provides a comprehensive guide to various types of fasteners, including bolts, nuts, pins, and washers. Explore diverse options and dimensions to meet specific project requirements and enhance your understanding of these essential components.

**Highlights:** Dimensions of bolts, nuts, pins, and washers, Variety of bolt types (e.g., countersunk, hex head flange), Range of nut types (e.g., hex, wing), Intricacies of pin types (e.g., clevis, cylindrical, tapered), Choices of washer types (e.g., plain, spring), Guide for project requirements

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Welding Toolbox 2 free?

Welding Toolbox 2 costs $7.99, with no in-app purchases.

### Is Fastener Dimensions free?

Fastener Dimensions costs $4.99, with no in-app purchases.

### Do Welding Toolbox 2 or Fastener Dimensions have ads?

Neither Welding Toolbox 2 nor Fastener Dimensions shows ads.

### Which is updated more often, Welding Toolbox 2 or Fastener Dimensions?

Welding Toolbox 2 ships an update every 29 months, and Fastener Dimensions every 6 months. Most recently, Welding Toolbox 2 was updated on September 15, 2026 and Fastener Dimensions on June 1, 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.*