# Welding Toolbox 2 vs WelderCalc

The clearest difference is price: WelderCalc at Free against Welding Toolbox 2's $7.99. WelderCalc also leads on update cadence (every 4 days vs every 29 months). Welding Toolbox 2's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement there is nothing between them.

WelderCalc is free to download; Welding Toolbox 2 costs $7.99 up front. WelderCalc sells 4 in-app purchases, starting at $1.99 per month. Welding Toolbox 2 asks for nothing beyond the download.

Welding Toolbox 2 ships an update every 29 months, WelderCalc every 4 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Welding Toolbox 2 | WelderCalc |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 29 MB | 1 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Parsify Technologies Antoni Kepinski](https://appshunter.io/developer/1546617908) | [Double Vision USA LLC](https://appshunter.io/developer/1894678139) |

## 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


### WelderCalc

[App page](https://appshunter.io/ios/app/weldercalc-welding-calculator/id6763315264)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Yearly | $9.99 | per year |
| Pro Unlock | $24.99 | one-time |
| Fab Shop Bundle | $139.99 | one-time |


## Frequently asked questions

### Is Welding Toolbox 2 free?

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

### Is WelderCalc free?

WelderCalc is free to download, with in-app purchases available.

### Do Welding Toolbox 2 or WelderCalc have ads?

Neither Welding Toolbox 2 nor WelderCalc shows ads.

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

Welding Toolbox 2 ships an update every 29 months, and WelderCalc every 4 days. Most recently, Welding Toolbox 2 was updated on October 29, 2026 and WelderCalc on October 25, 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.*