# Welding Certification Center vs Contractor Pro Network

The clearest difference is update cadence: Contractor Pro Network at every 2 months against Welding Certification Center's every 6 months. Contractor Pro Network also leads on iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Welding Certification Center ships an update every 6 months, Contractor Pro Network every 2 months. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Welding Certification Center | Contractor Pro Network |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Size | 106 MB | 113 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [District Council of Ironworkers of CA](https://appshunter.io/developer/1594054208) | [LINKED UNION LLC](https://appshunter.io/developer/1271448245) |

## What reviewers say

### Welding Certification Center

[App page](https://appshunter.io/ios/app/welding-certification-center/id6502743999)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Contractor Pro Network

[App page](https://appshunter.io/ios/app/contractor-pro-network/id6535673057)

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

**In-app purchases:** none


## Frequently asked questions

### Is Welding Certification Center free?

Welding Certification Center is free to download, with no in-app purchases.

### Is Contractor Pro Network free?

Contractor Pro Network is free to download, with no in-app purchases.

### Do Welding Certification Center or Contractor Pro Network have ads?

Neither Welding Certification Center nor Contractor Pro Network shows ads.

### Which is updated more often, Welding Certification Center or Contractor Pro Network?

Welding Certification Center ships an update every 6 months, and Contractor Pro Network every 2 months. Most recently, Welding Certification Center was updated on October 5, 2026 and Contractor Pro Network on October 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.*