# Renewable Energy Hub vs dotcert

The clearest difference is in-app purchases: Renewable Energy Hub at none against dotcert's 3. Renewable Energy Hub also leads on iOS requirement (15.1 vs 26.0). dotcert's advantage is update cadence (every 6 days vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. dotcert sells 3 in-app purchases, starting at $87.99 per month. Renewable Energy Hub asks for nothing beyond the download.

Renewable Energy Hub ships an update fortnightly, dotcert every 6 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Renewable Energy Hub | dotcert |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 35 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Richard Burdett](https://appshunter.io/developer/1559013306) | [CERTY LIMITED](https://appshunter.io/developer/1877112475) |

## What reviewers say

### Renewable Energy Hub

[App page](https://appshunter.io/ios/app/renewable-energy-hub/id1559013094)

**Features:** macOS Compatibility

**In-app purchases:** none


### dotcert

[App page](https://appshunter.io/ios/app/dotcert/id6759163581)

Streamline electrical certifications with an AI-powered mobile tool. Automate tedious paperwork, generate compliant PDFs, and get AI-suggested observations. Designed for electricians to save time and focus on their work.

**Highlights:** AI-powered voice dictation for certificate completion, AI-suggested observations aligned with BS 7671, Photo-to-board uploads for automatic circuit linking, Up to 5x faster certificate generation, Automatic PDF formatting and generation, Community feedback integration for continuous improvement

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Team +2 Seat Monthly | $87.99 | per month |
| Pro Team +3 Seat Monthly | $114.99 | per month |
| Pro Annually | $199.00 | per year |


## Frequently asked questions

### Is Renewable Energy Hub free?

Renewable Energy Hub is free to download, with no in-app purchases.

### Is dotcert free?

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

### Do Renewable Energy Hub or dotcert have ads?

Neither Renewable Energy Hub nor dotcert shows ads.

### Which is updated more often, Renewable Energy Hub or dotcert?

Renewable Energy Hub ships an update fortnightly, and dotcert every 6 days. Most recently, Renewable Energy Hub was updated on November 3, 2026 and dotcert on November 5, 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.*