# Welding Weight Calculator vs Demex

The clearest difference is price: Demex at Free against Welding Weight Calculator's $4.99. Demex also leads on update cadence (every 3 months vs every 48 months) and iOS requirement (14.0 vs 16.1). On ads, in-app purchases and device support there is nothing between them.

Demex is free to download; Welding Weight Calculator costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Welding Weight Calculator ships an update every 48 months, Demex every 3 months. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Welding Weight Calculator | Demex |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 3 months** |
| Size | 1 MB | 240 MB |
| Requires iOS | 16.1 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Imran Pinjara](https://appshunter.io/developer/1484488781) | [Demex AB](https://appshunter.io/developer/1694524575) |

## What reviewers say

### Welding Weight Calculator

[App page](https://appshunter.io/ios/app/welding-weight-calculator/id1491333815)

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

**In-app purchases:** none


### Demex

[App page](https://appshunter.io/ios/app/demex/id6450712397)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Welding Weight Calculator free?

Welding Weight Calculator costs $4.99, with no in-app purchases.

### Is Demex free?

Demex is free to download, with no in-app purchases.

### Do Welding Weight Calculator or Demex have ads?

Neither Welding Weight Calculator nor Demex shows ads.

### Which is updated more often, Welding Weight Calculator or Demex?

Welding Weight Calculator ships an update every 48 months, and Demex every 3 months. Most recently, Welding Weight Calculator was updated on October 26, 2026 and Demex on October 30, 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.*