# My Solar Panel vs VDAT

The clearest difference is in-app purchases: VDAT at none against My Solar Panel's 2. VDAT also leads on ads (none vs shown) and update cadence (weekly vs every 2 months). My Solar Panel's advantage is iOS requirement (13.2 vs 15.1). On price and device support there is nothing between them.

Both are free to download. My Solar Panel sells 2 in-app purchases, starting at $9.99 per month. VDAT asks for nothing beyond the download.

My Solar Panel ships an update every 2 months, VDAT weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | My Solar Panel | VDAT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (110 ratings)](https://appshunter.io/ios/app/my-solar-panel/id1498356619/reviews)** | — |
| Number of ratings | **110** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 39 MB |
| Requires iOS | **13.2** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Igor Ilijovski](https://appshunter.io/developer/1492982127) | [Southern California Trail Adoption Initiative Inc.](https://appshunter.io/developer/6771527256) |

## What reviewers say

### My Solar Panel

[App page](https://appshunter.io/ios/app/my-solar-panel/id1498356619)

Design and analyze solar photovoltaic systems on your smartphone. Get electricity generation estimates, payback periods, and detailed financial analyses for rooftop or commercial installations. Optimize your system for maximum output and make informed investment decisions.

**Highlights:** Design solar projects on mobile, Estimate electricity generation, Calculate payback period, Generate PDF reports, 3D panel simulator, Shading analysis, Financial analysis tools

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features | $9.99 | per month |
| Unlock all features | $39.99 | per year |


### VDAT

[App page](https://appshunter.io/ios/app/vdat/id6771527254)

**In-app purchases:** none


## Frequently asked questions

### Is My Solar Panel free?

My Solar Panel is free to download, with in-app purchases available.

### Is VDAT free?

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

### Do My Solar Panel or VDAT have ads?

My Solar Panel shows ads; VDAT does not.

### Which is updated more often, My Solar Panel or VDAT?

My Solar Panel ships an update every 2 months, and VDAT weekly. Most recently, My Solar Panel was updated on November 3, 2026 and VDAT on October 31, 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.*