MyLocusEnergy vs SunEyed
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyLocusEnergy
Monitor your energy system's performance with real-time output and historical production data. Visualize trends with easy-to-read graphs and understand environmental benefits. Weather data provides context for system output.
- Real-time system output monitoring
- Historical production trends
- Visual graphs and data comparison
- Weather data integration
- Environmental benefit tracking
- System performance insights
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The MyLocusEnergy app provides users with insights into the performance of their system by showcasing current output and system production over a variety of timeframes. Users can easily compare current production to historical trends through an intuitive interface with easy-to-read system output and visual graphs. Simply toggle through more detailed data of each timeframe with a single click. Weather data for the site location provides context of current conditions that can affect system production. Users can also see how their system provides meaningful environmental benefits by utilizing renewable energy sources. The MyLocusEnergy app requires that your installer register your system within LocusNOC and send you an email invite to login to the app. If you have not received this invite, please contact your installer for assistance in getting this setup to begin using the app.
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.
- 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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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.
Screenshots
Verdict
The clearest difference is review sentiment: SunEyed at 100% against MyLocusEnergy's 9%. SunEyed also leads on rating (5.0 vs 1.9). MyLocusEnergy's advantage is ratings volume (16 vs 2) and iOS requirement (14.0 vs 17.3). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SunEyed holds the better App Store score, 5.0 against 1.9. That said, the two scores are not equally well evidenced: MyLocusEnergy has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 9% of MyLocusEnergy's written reviews are positive against 100% of SunEyed's.
MyLocusEnergy ships an update every 10 days, SunEyed every 6 days. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.
| Parameter | MyLocusEnergy | SunEyed |
|---|---|---|
| Price | Free | Free |
| Rating | 1.9 (16 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 9.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 16 — better | 2 |
| Update frequency | Every 10 days | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.3 |
| Further details — not scored | ||
| Size | 10 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Locus Energy | Sergio Lemaitre |
Customer experience
MyLocusEnergy
SunEyed
In-app purchases
MyLocusEnergy
No in-app purchases
SunEyed
No in-app purchases
Questions
Is MyLocusEnergy free?
Is SunEyed free?
Which has better reviews, MyLocusEnergy or SunEyed?
Do MyLocusEnergy or SunEyed have ads?
Which is updated more often, MyLocusEnergy or SunEyed?
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