DeltaSolar vs Lunar Installer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DeltaSolar
Monitor your solar energy system's performance remotely or onsite. Track energy production, consumption, and export, with historical data for analysis. View grid and solar power voltage, frequency, and amps for comprehensive system insights.
- Remote Wi-Fi access
- Direct onsite connection
- Energy status and analysis
- Production, consumption, export data
- Historical performance data
- Grid and solar voltage/frequency monitoring
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Connect the Delta equipment to the sites Wi-Fi connection for remote access anywhere or connect directly to the inverter onsite using your smart device eliminating the need to have a Wi-Fi internet service. •Full “At a Glance” energy status and analysis •Display of production, consumption, energy bought and energy exported* •Historic data available by day, month or year for comparisons of performance •View grid voltage and frequency as well as the solar power voltage and amps •Easy commission and connect method *Requires the installation of the CT clamp and cable or external power meter. Delta’s P2P (point to point) feature offers the ability to connect your smart device directly to your inverter or battery and receive rapid data update to see your loads and generation as it happens. A new web portal version of the app is also available using your app login details at https://mydeltasolar.deltaww.com.
Lunar Installer
This app simplifies the setup of a specific system with guided processes, firmware updates, and automated tests. It offers in-app troubleshooting and live chat support to resolve issues efficiently. Leave job sites with confidence and reduce the need for return visits.
- Guided setup process
- Firmware updates
- Automated operational tests
- In-app troubleshooting
- Live chat support
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Lunar Installer’s guided process makes it brilliantly simple to set up a Lunar System. You can rapidly update systems with built-in firmware and run automated tests to verify operation. And if you run into issues, troubleshooting and live chat support are available right in the app. Lunar Installer lets you leave the jobsite with confidence — and avoid additional truck rolls.
Screenshots
Verdict
The clearest difference is rating: Lunar Installer at 4.2 against DeltaSolar's 1.0. Lunar Installer also leads on update cadence (every 8 days vs every 2 months) and ratings volume (5 vs 1). DeltaSolar's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.4). On price, ads, in-app purchases and monetization model 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 Installer holds the better App Store score, 4.2 against 1.0. That said, the two scores are not equally well evidenced: Lunar Installer has 5 ratings behind it against 1, so its average is the more settled of the two.
DeltaSolar ships an update every 2 months, Lunar Installer every 8 days. Both last shipped on October 24, 2026.
| Parameter | DeltaSolar | Lunar Installer |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.2 (5 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 136 MB | 220 MB |
| Age rating | 4+ | 4+ |
| Developer | Delta Electronics, Inc. | Lunar Energy Limited |
Customer experience
DeltaSolar
Lunar Installer
In-app purchases
DeltaSolar
No in-app purchases
Lunar Installer
No in-app purchases
Questions
Is DeltaSolar free?
Is Lunar Installer free?
Which has better reviews, DeltaSolar or Lunar Installer?
Do DeltaSolar or Lunar Installer have ads?
Which is updated more often, DeltaSolar or Lunar Installer?
Other comparisons
