# Wiring & Controls vs 7909 Certification

The clearest difference is price: 7909 Certification at Free against Wiring & Controls's $4.99. Wiring & Controls's advantage is in-app purchases (none vs 3) and iOS requirement (9.0 vs 11.0). On update cadence, ads and device support there is nothing between them.

7909 Certification is free to download; Wiring & Controls costs $4.99 up front. 7909 Certification sells 3 one-off in-app purchases. Wiring & Controls asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Wiring & Controls | 7909 Certification |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/7909-certification/id1544521777/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | — | Free |
| Size | 35 MB | 6 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mr Combi Training](https://appshunter.io/developer/566867832) | [Pro Certs Software Ltd](https://appshunter.io/developer/444429696) |

## What reviewers say

### Wiring & Controls

[App page](https://appshunter.io/ios/app/wiring-and-controls/id1434697222)

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

**In-app purchases:** none


### 7909 Certification

[App page](https://appshunter.io/ios/app/7909-certification/id1544521777)

This app generates digital electrical certification forms for temporary installations based on BS 7909. It allows for easy creation, saving, emailing, and printing of completion certificates, test results, and confirmations. Features include data import/export, local backup, and automatic calculations for PSSC and G3 forms.

**Highlights:** Generate BS 7909 completion certificates, Save, print, or email PDF certificates, Import/export system data between devices, Local backup and restore functionality, Automatic PSSC calculation and G3 generation, Offline work capability, Customizable company logo and colors

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Credits | $59.99 | one-time |
| 200 Credits | $99.99 | one-time |
| 300 Credits | $119.99 | one-time |


## Frequently asked questions

### Is Wiring & Controls free?

Wiring & Controls costs $4.99, with no in-app purchases.

### Is 7909 Certification free?

7909 Certification is free to download, with in-app purchases available.

### Do Wiring & Controls or 7909 Certification have ads?

Neither Wiring & Controls nor 7909 Certification shows ads.

### Which is updated more often, Wiring & Controls or 7909 Certification?

Wiring & Controls ships an update every 3 months, and 7909 Certification every 3 months. Most recently, Wiring & Controls was updated on October 15, 2026 and 7909 Certification on October 14, 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.*