# Solar Guardian vs Overkill Solar

The clearest difference is review sentiment: Overkill Solar at 100% against Solar Guardian's 17%. Overkill Solar also leads on rating (4.8 vs 2.3). Solar Guardian's advantage is update cadence (every 2 months vs every 4 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Overkill Solar holds the better App Store score, 4.8 against 2.3. Both are backed by a comparable volume of ratings — 17 and 21 respectively. Written reviews point the same way: 17% of Solar Guardian's written reviews are positive against 100% of Overkill Solar's.

Solar Guardian ships an update every 2 months, Overkill Solar every 4 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Solar Guardian | Overkill Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (17 ratings)](https://appshunter.io/ios/app/solar-guardian/id6443552259/reviews) | **[4.8 (21 ratings)](https://appshunter.io/ios/app/overkill-solar/id6444233824/reviews)** |
| Number of ratings | 17 | **21** |
| Positive reviews | 16.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 84 MB | 21 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BEIJING EPSOLAR TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1330876646) | [Overkill Solar LLC](https://appshunter.io/developer/1653276724) |

## What reviewers say

### Solar Guardian

[App page](https://appshunter.io/ios/app/solar-guardian/id6443552259)

Monitor and control various solar energy systems, including inverters, chargers, and storage solutions. Adjust parameters and view data for optimal energy management.

**Highlights:** Data display for solar systems, Parameter setting for inverters, Supports grid-tie inverters, Hybrid inverter management, Energy storage system monitoring, Home and mobile energy storage control

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Overkill Solar

[App page](https://appshunter.io/ios/app/overkill-solar/id6444233824)

This app connects to a solar battery management system to provide detailed monitoring and control. Users can track cell voltage, capacity, current, and manage charging/discharging ports. It also offers advanced configuration options for calibration, balancing, and protection settings.

**Highlights:** Monitor cell voltage and capacity, Control charging and discharging ports, Calibrate voltage and current, Configure balancer and protection values, Log voltage, current, and power, Monitor BMS alarms and temperature

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solar Guardian free?

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

### Is Overkill Solar free?

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

### Which has better reviews, Solar Guardian or Overkill Solar?

Overkill Solar is rated higher. Solar Guardian averages 2.3 out of 5 from 17 ratings, while Overkill Solar averages 4.8 from 21 ratings.

### Do Solar Guardian or Overkill Solar have ads?

Neither Solar Guardian nor Overkill Solar shows ads.

### Which is updated more often, Solar Guardian or Overkill Solar?

Solar Guardian ships an update every 2 months, and Overkill Solar every 4 months. Most recently, Solar Guardian was updated on October 24, 2026 and Overkill Solar 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.*