Best Solar Panel App
Very intuitive and helpful, appreciated the insights
Free
About
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.
✓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
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What's New in SunEyed
1.0.3
April 13, 2026
Bug fix.
User reviews
FAQ
What is SunEyed?
SunEyed is a free solar savings calculator that helps homeowners estimate their return on investment and payback period for solar panel installations. It uses real weather data and allows you to map obstructions for precise calculations.
How accurate is SunEyed?
SunEyed uses data from over 40,000 weather stations worldwide, matching your exact coordinates to the nearest station for monthly solar radiation values. It also models shadows from obstructions like trees and buildings for a more precise production estimate.
Does SunEyed have ads?
No, SunEyed is completely ad-free. The app is free for personal use by homeowners evaluating solar for their own homes, with no hidden fees or subscriptions.
Can I use SunEyed offline?
Yes, SunEyed works entirely offline. All calculations are performed on your device, meaning you don't need an internet connection to get your solar savings analysis.
What devices does SunEyed support?
SunEyed is available for iPhone and iPad. It requires iOS 13.0 or later.
How often is SunEyed updated?
The latest version of SunEyed is 1.0.3, which was last updated on April 13, 2026. Updates typically include improvements to accuracy and features.
Is SunEyed safe for children?
SunEyed has an age rating of 4+, making it suitable for users of all ages. The app focuses on utility calculations and does not contain any inappropriate content.
Can I share my SunEyed analysis?
Yes, you can export your analysis as a PDF summary from SunEyed. This allows you to share your findings with solar installers or anyone else of your choice on your own terms.
