# PV Calculator Premium vs GRIDD PRO

The clearest difference is price: GRIDD PRO at Free against PV Calculator Premium's $12.99. PV Calculator Premium's advantage is update cadence (every 9 days vs every 5 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

GRIDD PRO is free to download; PV Calculator Premium costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PV Calculator Premium ships an update every 9 days, GRIDD PRO every 5 months. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | PV Calculator Premium | GRIDD PRO |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pv-calculator-premium/id6456485899/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 5 months |
| Monetization | Paid | — |
| Size | 38 MB | 17 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sven Schwertner](https://appshunter.io/developer/1700478261) | [Violence Prevention Network gGmbH](https://appshunter.io/developer/1752082728) |

## What reviewers say

### PV Calculator Premium

[App page](https://appshunter.io/ios/app/pv-calculator-premium/id6456485899)

Estimate the potential of photovoltaic power generation at your location. Features include site-specific solar irradiance, hourly resolution, and custom load profiles for accurate planning. Analyze electricity fed into the grid, savings, and payback time.

**Highlights:** Site-specific solar irradiance data, Hourly production and storage resolution, Individual load profile design, Roof area measurement and panel positioning, Snowfall and shading simulation, Project import/export and sharing, PDF and Excel result export

**Features:** Vision Pro support

**In-app purchases:** none


### GRIDD PRO

[App page](https://appshunter.io/ios/app/gridd-pro/id6504397339)

**In-app purchases:** none


## Frequently asked questions

### Is PV Calculator Premium free?

PV Calculator Premium costs $12.99, with no in-app purchases.

### Is GRIDD PRO free?

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

### Do PV Calculator Premium or GRIDD PRO have ads?

Neither PV Calculator Premium nor GRIDD PRO shows ads.

### Which is updated more often, PV Calculator Premium or GRIDD PRO?

PV Calculator Premium ships an update every 9 days, and GRIDD PRO every 5 months. Most recently, PV Calculator Premium was updated on October 25, 2026 and GRIDD PRO on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*