# 7909 Certification vs LayerMapper NDI

The clearest difference is in-app purchases: LayerMapper NDI at none against 7909 Certification's 3. 7909 Certification's advantage is iOS requirement (11.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. 7909 Certification sells 3 one-off in-app purchases. LayerMapper NDI asks for nothing beyond the download.

## The numbers

| Metric | 7909 Certification | LayerMapper NDI |
| --- | --- | --- |
| Price | Free | 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Size | 6 MB | 7 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pro Certs Software Ltd](https://appshunter.io/developer/444429696) | [Denis Grzechnik](https://appshunter.io/developer/1818459305) |

## What reviewers say

### 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 |


### LayerMapper NDI

[App page](https://appshunter.io/ios/app/layermapper-ndi/id6746772930)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 7909 Certification free?

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

### Is LayerMapper NDI free?

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

### Do 7909 Certification or LayerMapper NDI have ads?

Neither 7909 Certification nor LayerMapper NDI shows ads.

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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.*