# DeltaSolar vs Lunar Installer

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.

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.

## The numbers

| Metric | DeltaSolar | Lunar Installer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/deltasolar/id1570742979/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/lunar-installer/id6670309375/reviews)** |
| Number of ratings | 1 | **5** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Free | Free |
| Size | 136 MB | 220 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Delta Electronics, Inc.](https://appshunter.io/developer/386896582) | [Lunar Energy Limited](https://appshunter.io/developer/1400433604) |

## What reviewers say

### DeltaSolar

[App page](https://appshunter.io/ios/app/deltasolar/id1570742979)

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.

**Highlights:** Remote Wi-Fi access, Direct onsite connection, Energy status and analysis, Production, consumption, export data, Historical performance data, Grid and solar voltage/frequency monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### Lunar Installer

[App page](https://appshunter.io/ios/app/lunar-installer/id6670309375)

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.

**Highlights:** Guided setup process, Firmware updates, Automated operational tests, In-app troubleshooting, Live chat support

**In-app purchases:** none


## Frequently asked questions

### Is DeltaSolar free?

DeltaSolar is free to download, with no in-app purchases.

### Is Lunar Installer free?

Lunar Installer is free to download, with no in-app purchases.

### Which has better reviews, DeltaSolar or Lunar Installer?

Lunar Installer is rated higher. DeltaSolar averages 1.0 out of 5 from 1 ratings, while Lunar Installer averages 4.2 from 5 ratings.

### Do DeltaSolar or Lunar Installer have ads?

Neither DeltaSolar nor Lunar Installer shows ads.

### Which is updated more often, DeltaSolar or Lunar Installer?

DeltaSolar ships an update every 2 months, and Lunar Installer every 8 days. Most recently, DeltaSolar was updated on October 24, 2026 and Lunar Installer on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*