# Solar Panel Calculator Plus vs GRMS

The clearest difference is price: GRMS at Free against Solar Panel Calculator Plus's $2.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

GRMS is free to download; Solar Panel Calculator Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Solar Panel Calculator Plus | GRMS |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.3 (23 ratings)](https://appshunter.io/ios/app/solar-panel-calculator-plus/id1358184660/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 47 months | — |
| Monetization | Paid | — |
| Size | 8 MB | 19 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [PUNJAB INFORMATION TECHNOLOGY BOARD](https://appshunter.io/developer/1126071827) |

## What reviewers say

### Solar Panel Calculator Plus

[App page](https://appshunter.io/ios/app/solar-panel-calculator-plus/id1358184660)

Calculate custom off-grid solar home power systems. Determine the exact number of solar panels and battery capacity needed for your energy usage. Helps plan system size, inverter requirements, and battery bank specifications.

**Highlights:** Calculate solar panel requirements, Determine battery capacity, Calculate inverter size, Estimate daily energy usage, Plan days of autonomy, Optimize battery life calculations

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

**In-app purchases:** none


### GRMS

[App page](https://appshunter.io/ios/app/grms/id6462079090)

**In-app purchases:** none


## Frequently asked questions

### Is Solar Panel Calculator Plus free?

Solar Panel Calculator Plus costs $2.99, with no in-app purchases.

### Is GRMS free?

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

### Do Solar Panel Calculator Plus or GRMS have ads?

Neither Solar Panel Calculator Plus nor GRMS 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.*