Span Installer vs Lunar Energy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Span Installer
This app streamlines the installation and servicing of new and existing SPAN panels. It offers enhanced navigation, an improved breaker labeling process, and integrated troubleshooting support. Users can also confirm communications with battery systems and program setpoints for energy management.
- Faster new SPAN Panel commissioning
- Simplified user navigation
- Improved breaker labeling
- Integrated troubleshooting and support
- Confirm hardware communications
- Program setpoints with SPAN PowerUp
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The new and improved SPAN Installer App supports the seamless installation of new SPAN panels. The SPAN Installer App also allows for seamless service calls of existing SPAN Panel installations. - Set up and commission a new SPAN Panel faster than ever before - Enhanced and simplified user navigation and design - New and Improved breaker labelling process making it even easier to install SPAN - Seamless troubleshooting and support integrated into the app - Confirm communications with battery systems and other hardware like SPAN Drive - Program setpoints to help customers avoid service upgrades with SPAN PowerUpTM Shift to smarter, cleaner energy with SPAN and ensure quality installations for your customers. **You must be a SPAN Authorized Installer to login to the SPAN Installer App.**
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 review sentiment: Lunar Energy at 100% against Span Installer's 0%. Lunar Energy also leads on rating (5.0 vs 3.7). On price, ratings volume, update cadence and ads 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 3.7. Both are backed by a comparable volume of ratings — 13 and 13 respectively. Written reviews point the same way: 0% of Span Installer's written reviews are positive against 100% of Lunar Energy's.
Span Installer ships an update fortnightly, Lunar Energy every 2 weeks. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.
| Parameter | Span Installer | Lunar Energy |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (13 ratings) | 5.0 (13 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 13 | 13 |
| Update frequency | Fortnightly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 104 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | Span.io, Inc | Lunar Energy Limited |
Customer experience
Span Installer
Lunar Energy
In-app purchases
Span Installer
No in-app purchases
Lunar Energy
No in-app purchases
Questions
Is Span Installer free?
Is Lunar Energy free?
Which has better reviews, Span Installer or Lunar Energy?
Do Span Installer or Lunar Energy have ads?
Which is updated more often, Span Installer or Lunar Energy?
Other comparisons
