# SolarViewer vs Solar Guardian

The clearest difference is iOS requirement: SolarViewer at 8.0 against Solar Guardian's 13.0. On price, update cadence, 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.

SolarViewer ships an update every 5 weeks, Solar Guardian every 2 months. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | SolarViewer | Solar Guardian |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.4 (16 ratings)](https://appshunter.io/ios/app/solar-guardian/id6443552259/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | — | 17.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 36 MB | 84 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AsianPowerDevicesInc](https://appshunter.io/developer/1214788661) | [BEIJING EPSOLAR TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1330876646) |

## What reviewers say

### SolarViewer

[App page](https://appshunter.io/ios/app/solarviewer/id1462404751)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is SolarViewer free?

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

### Is Solar Guardian free?

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

### Do SolarViewer or Solar Guardian have ads?

Neither SolarViewer nor Solar Guardian shows ads.

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

SolarViewer ships an update every 5 weeks, and Solar Guardian every 2 months. Most recently, SolarViewer was updated on September 21, 2026 and Solar Guardian on September 17, 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.*