# Retgen vs Solar PV Analysis

The clearest difference is in-app purchases: Retgen at none against Solar PV Analysis's 3. Retgen also leads on iOS requirement (15 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Solar PV Analysis sells 3 in-app purchases, starting at $7.99 per month. Retgen asks for nothing beyond the download.

## The numbers

| Metric | Retgen | Solar PV Analysis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 34 MB | 42 MB |
| Requires iOS | **15** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rast Teknoloji](https://appshunter.io/developer/1610709328) | [Kale Ges Enerji Uretim Limited Sirketi](https://appshunter.io/developer/1877400736) |

## What reviewers say

### Retgen

[App page](https://appshunter.io/ios/app/retgen/id1610709326)

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

**In-app purchases:** none


### Solar PV Analysis

[App page](https://appshunter.io/ios/app/solar-pv-analysis/id6759523866)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $7.99 | per month |
| Pro Yearly | $49.99 | per year |
| Business Yearly | $99.99 | per year |


## Frequently asked questions

### Is Retgen free?

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

### Is Solar PV Analysis free?

Solar PV Analysis is free to download, with in-app purchases available.

### Do Retgen or Solar PV Analysis have ads?

Neither Retgen nor Solar PV Analysis 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.*