# OpenSolar vs Solar System Calculator

The clearest difference is ads: OpenSolar at none against Solar System Calculator's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | OpenSolar | Solar System Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (10 ratings)](https://appshunter.io/ios/app/opensolar/id1410085935/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | — |
| Monetization | Free | — |
| Size | 216 MB | 26 MB |
| Requires iOS | 15.7 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OpenSolar Pty Ltd](https://appshunter.io/developer/1340033321) | [Oguzhan Sepetci](https://appshunter.io/developer/1844193159) |

## What reviewers say

### OpenSolar

[App page](https://appshunter.io/ios/app/opensolar/id1410085935)

This free application provides a comprehensive solution for designing and selling solar energy systems. It offers end-to-end functionality for solar professionals.

**Highlights:** End-to-end solar design, Sales application, Free to use, Comprehensive functionality

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

**In-app purchases:** none


### Solar System Calculator

[App page](https://appshunter.io/ios/app/solar-system-calculator/id6754260197)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OpenSolar free?

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

### Is Solar System Calculator free?

Solar System Calculator is free to download, with no in-app purchases.

### Do OpenSolar or Solar System Calculator have ads?

Solar System Calculator shows ads; OpenSolar does not.

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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.*