# solar energy. vs SunEyed

The clearest difference is update cadence: SunEyed at every 6 days against solar energy.'s every 3 months. solar energy.'s advantage is iOS requirement (13.0 vs 17.3). On price, ads, in-app purchases and device support there is nothing between them.

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

solar energy. ships an update every 3 months, SunEyed every 6 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | solar energy. | SunEyed |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/suneyed/id6761688312/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | — | Free |
| Size | 252 MB | 42 MB |
| Requires iOS | **13.0** | 17.3 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [祥梯 孟](https://appshunter.io/developer/1070155084) | [Sergio Lemaitre](https://appshunter.io/developer/1890892617) |

## What reviewers say

### solar energy.

[App page](https://appshunter.io/ios/app/solar-energy/id6755375528)

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

**In-app purchases:** none


### SunEyed

[App page](https://appshunter.io/ios/app/suneyed/id6761688312)

Calculate your personalized solar return on investment using real weather data. Input your electricity bill, roof panel details, and map obstructions for an accurate payback period. All analysis is done on your device with no account or subscription required.

**Highlights:** Solar savings and break-even calculation, Real weather data from 40,000+ stations, Obstruction mapping with camera/sensors, Multi-array roof configuration, Offline functionality, PDF export for installers

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

**In-app purchases:** none


## Frequently asked questions

### Is solar energy. free?

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

### Is SunEyed free?

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

### Do solar energy. or SunEyed have ads?

Neither solar energy. nor SunEyed shows ads.

### Which is updated more often, solar energy. or SunEyed?

solar energy. ships an update every 3 months, and SunEyed every 6 days. Most recently, solar energy. was updated on October 30, 2026 and SunEyed 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.*