Comparison

SunEyed vs Solar Panel Layout

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SunEyed

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
Read full description

Know your real solar savings before you talk to anyone. SunEyed calculates your personalized solar ROI using real weather data from over 40,000 stations worldwide. Enter your electricity bill, configure your roof panels, map obstructions, and get an accurate payback period in minutes — entirely on your device, with no account required. HONEST ANALYSIS, NO SALES PITCH SunEyed is built for homeowners who want the facts first. No sign-up. No data harvesting. No pressure. Your numbers stay on your phone. When you're ready, you can share your analysis as a PDF with any installer of your choice — on your terms. HOW IT WORKS 1. Enter your electricity usage and rate 2. Configure your roof panels — set direction, slope, and number of panels for each roof face 3. Map obstructions — trace trees, chimneys, and neighboring buildings directly on the sun path chart 4. SunEyed calculates your annual production, yearly savings, and break-even period using real local weather data KEY FEATURES • Solar savings and break-even calculation based on real weather data • 40,000+ weather station database — accurate for locations worldwide • Multi-array support — configure multiple roof faces independently • Camera and motion sensor obstruction mapping — physically point your phone at obstructions and trace them onto the sun path chart • Monthly usage vs. production comparison with net metering support • Adjustable panel specs — wattage, efficiency, system losses, array type • Export a PDF summary to share with installers as a request for quote • Works entirely offline — all calculations run on device • No account, no sign-up, no subscription PRECISE WHERE IT MATTERS Most solar calculators use regional averages. SunEyed matches your exact coordinates to the nearest weather station in its database, giving you monthly solar radiation values specific to your location. The obstruction tool goes further — it models how trees, chimneys, and other structures cast shadows across your roof throughout the year, reducing your estimated production only where the sun is actually blocked. YOUR DATA STAYS ON YOUR DEVICE SunEyed does not require an account. Your electricity usage, location, and roof configuration are stored locally on your phone and never uploaded to any server. FREE FOR PERSONAL USE • SunEyed is completely free for homeowners evaluating solar for their own home. No subscription, no hidden fees, no expiration. • Using SunEyed in a professional or commercial context — as a solar installer, energy auditor, or contractor — requires a commercial license. Visit suneyed.com for details on professional use and upcoming installer features.

About

Solar Panel Layout

Read full description

Solar Roof Layout helps you quickly estimate the solar potential of a roof. Measure a roof surface, run a solar panel layout, and get a clear estimate of how many PV modules can fit. The app focuses on the essentials: roof area, available surface, solar panels, PV layout, and quick estimation. Features: • Roof measurement • Available surface calculation • Solar panel layout • Estimated number of PV modules • Simple result visualization • Mobile tool for solar projects Solar Roof Layout helps you prepare a solar project, compare roof areas, and quickly estimate how many photovoltaic modules can fit on a roof. Designed for residential and professional solar projects, the app gives you a simple way to work on roof layout without complex software. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://azimutis.app/en/privacy.html

Screenshots

SunEyed4 screens
Solar Panel Layout4 screens

Verdict

The call

The clearest difference is in-app purchases: SunEyed at none against Solar Panel Layout's 2. Solar Panel Layout's advantage is iOS requirement (15.0 vs 17.3). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Solar Panel Layout sells 2 in-app purchases, starting at $2.99 per month. SunEyed asks for nothing beyond the download.

UpkeepUpdate frequency

SunEyed ships an update every 6 days, Solar Panel Layout weekly. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
SunEyed versus Solar Panel Layout: the parameters behind the verdict, then further details
ParameterSunEyedSolar Panel Layout
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 6 days — betterWeekly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.315.0 — better
Further details — not scored
Size42 MB27 MB
Age rating4+4+
DeveloperSergio LemaitreFrederic Billon

In-app purchases

None

SunEyed

No in-app purchases

2 purchases

Solar Panel Layout

Subscriptions2
  • Pro7 Days trial$2.991 Month
  • Pro7 Days trial$17.991 Year

Questions

Is SunEyed free?
SunEyed is free to download, with no in-app purchases.
Is Solar Panel Layout free?
Solar Panel Layout is free to download, with in-app purchases available.
Do SunEyed or Solar Panel Layout have ads?
Neither SunEyed nor Solar Panel Layout shows ads.
Which is updated more often, SunEyed or Solar Panel Layout?
SunEyed ships an update every 6 days, and Solar Panel Layout weekly. Most recently, SunEyed was updated on October 1, 2026 and Solar Panel Layout on October 10, 2026.

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