# Fronius Solar.SOS vs EPEVER Pair

The clearest difference is rating: EPEVER Pair at 2.0 against Fronius Solar.SOS's 1.5. EPEVER Pair also leads on update cadence (every 3 weeks vs every 3 months) and review sentiment (15% vs 0%). 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.

EPEVER Pair holds the better App Store score, 2.0 against 1.5. That said, the two scores are not equally well evidenced: EPEVER Pair has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Fronius Solar.SOS's written reviews are positive against 15% of EPEVER Pair's.

Fronius Solar.SOS ships an update every 3 months, EPEVER Pair every 3 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Fronius Solar.SOS | EPEVER Pair |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/fronius-solarsos/id1516602936/reviews) | **[2.0 (16 ratings)](https://appshunter.io/ios/app/epever-pair/id1564254098/reviews)** |
| Number of ratings | 2 | **16** |
| Positive reviews | 0.0% of reviews | **14.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 15 MB | 92 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fronius International GmbH](https://appshunter.io/developer/431601279) | [BEIJING EPSOLAR TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1330876646) |

## What reviewers say

### Fronius Solar.SOS

[App page](https://appshunter.io/ios/app/fronius-solarsos/id1516602936)

This business tool helps installers quickly resolve technical issues with solar systems. It allows for easy ordering of replacement parts and provides access to important documentation. The app streamlines the service process directly at the installation site.

**Highlights:** Manage multiple accounts, Order replacement parts, Track order status, Messaging with support, Access installation guides, Troubleshoot technical issues

**In-app purchases:** none


### EPEVER Pair

[App page](https://appshunter.io/ios/app/epever-pair/id1564254098)

This app allows users to monitor and control solar power systems. It provides real-time data and system status for solar charge controllers and off-grid inverters. Manage your solar energy solutions efficiently with this tool.

**Highlights:** Real-time system monitoring, Control solar charge controllers, Manage off-grid inverters, View system status, Solar application system management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fronius Solar.SOS free?

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

### Is EPEVER Pair free?

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

### Which has better reviews, Fronius Solar.SOS or EPEVER Pair?

EPEVER Pair is rated higher. Fronius Solar.SOS averages 1.5 out of 5 from 2 ratings, while EPEVER Pair averages 2.0 from 16 ratings.

### Do Fronius Solar.SOS or EPEVER Pair have ads?

Neither Fronius Solar.SOS nor EPEVER Pair shows ads.

### Which is updated more often, Fronius Solar.SOS or EPEVER Pair?

Fronius Solar.SOS ships an update every 3 months, and EPEVER Pair every 3 weeks. Most recently, Fronius Solar.SOS was updated on October 24, 2026 and EPEVER Pair on October 21, 2026.

---

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