Sunrun vs Lunar Energy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sunrun
Monitor your solar energy system, track energy production, and access support. Gain insights into your environmental impact and manage your system data from a single, user-friendly interface.
- System data management
- Energy production tracking
- Customer support access
- Environmental impact insights
- User-friendly interface
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Newly designed and easy-to-use, our app is the single access point for Sunrun customers to monitor their systems, track energy production, and get the support they need. Featuring: • Streamlined access to manage and organize all of your system data. Our user-friendly interface provides a centralized hub where you can conveniently access and oversee your system data. • Thorough support page to help you find the answers you need. Whether it’s getting started with your new system or questions around the fundamentals of solar, we’ve got you covered. • Contextualized insights to better understand the positive environmental impact you’re making. Our app utilizes your system data to offer valuable insights, deepening your understanding of how your choices contribute to a greener planet.
Lunar Energy
Monitor your home's solar energy production, consumption, and storage in real-time. Gain confidence during power outages with backup duration estimates and maximize savings with automatic Lunar Mode. Participate in Virtual Power Plant programs to earn money.
- Real-time energy monitoring
- Backup power duration estimates
- Automatic savings optimization (Lunar Mode)
- Virtual Power Plant program enrollment
- Energy usage reports
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Open App. Operate Sun. With the brilliantly-designed Lunar App, it's that simple. - Watch how much energy your home is making, using, and storing in real-time. - Power through grid outages with confidence. The Lunar System seamlessly takes over during an outage, and the Lunar App shows you how long you'll last at your current electrical usage. - Save money. With Lunar Mode, your system will maximize savings automatically. - Enroll and earn money in Virtual Power Plant programs directly from the Lunar App. "The app is designed to show you just what you need to know: how much power you have for backup, how much you're consuming, and how much your solar is generating. It'll also give you an easily readable report on how power is being utilized at any given time." – The Verge
Screenshots
Verdict
The clearest difference is rating: Lunar Energy at 5.0 against Sunrun's 4.5. Lunar Energy also leads on review sentiment (100% vs 73%). Sunrun's advantage is ratings volume (3.4K vs 13) and device support (3 vs 1). 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.
Lunar Energy holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Sunrun has 3.4K ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 73% of Sunrun's written reviews are positive against 100% of Lunar Energy's.
Sunrun ships an update every 4 weeks, Lunar Energy every 2 weeks. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.
| Parameter | Sunrun | Lunar Energy |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (3.4K ratings) | 5.0 (13 ratings) — better |
| Positive reviews | 73.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 3.4K — better | 13 |
| Update frequency | Every 4 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 96 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Sunrun Inc. | Lunar Energy Limited |
Customer experience
Sunrun
Lunar Energy
Bugs and requests
Sunrun
Reported bugs
4 issues- App crashes or freezes
- Frequent loading issues
- Charts and graphs not functioning properly
- Discrepancies between app and actual production
Requested features
5 requests- Download or export data
- Integrate energy usage data
- Add alerts and notifications
- Provide landscape mode on iPad
- Show year-over-year production comparisons
Lunar Energy
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sunrun
No in-app purchases
Lunar Energy
No in-app purchases
