# My Solar Panel vs Zero Carbon

The clearest difference is in-app purchases: Zero Carbon at none against My Solar Panel's 2. Zero Carbon also leads on ads (none vs shown) and update cadence (monthly vs every 2 months). 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. Zero Carbon asks for nothing beyond the download.

My Solar Panel ships an update every 2 months, Zero Carbon monthly. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | My Solar Panel | Zero Carbon |
| --- | --- | --- |
| 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 | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 22 MB |
| Requires iOS | 13.2 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Igor Ilijovski](https://appshunter.io/developer/1492982127) | [TheTowerTech](https://appshunter.io/developer/1259751444) |

## 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 |


### Zero Carbon

[App page](https://appshunter.io/ios/app/zero-carbon-connect/id6447286723)

**Features:** macOS Compatibility

**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 Zero Carbon free?

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

### Do My Solar Panel or Zero Carbon have ads?

My Solar Panel shows ads; Zero Carbon does not.

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

My Solar Panel ships an update every 2 months, and Zero Carbon monthly. Most recently, My Solar Panel was updated on October 24, 2026 and Zero Carbon on October 16, 2026.

---

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