Comparison

Fronius Solar.SOS vs EPEVER Pair

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Fronius Solar.SOS

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
Read full description

Fronius Solar.SOS is a self-service solution for all technical queries. This is a business application that installers can use to initiate the service process online directly at the system location - quite simply with the serial number of the inverter or a state code. In the space of a few clicks, Solar.SOS supports installers with troubleshooting and ordering replacement parts. The big advantage is that with this app installers can resolve technical problems themselves at any time. Attention - this app is purely a solution for installers (B2B). Features: - Manage multiple accounts, all from a single account - All orders at a glance (case overview) - Rapid ordering of replacement parts - Check the status of orders with ease - Messaging function with technical support (case messages) - Access to all relevant Installation Instructions and Operating Instructions (YouTube, etc.)

About

EPEVER Pair

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
Read full description

Beijing Epsolar Technology Co., Ltd. was established in March 2007 with more than 30 million RMB registered capital. We are a new and high-tech enterprise which was specialized in power products researching, manufacturing, and marketing. We provide products including solar charge controllers, off-grid inverter, LED driver and special power units etc., as well as design and supply relevant solar application systems. The company has passed the ISO9001: 2008, and products have passed CGC-SOLAR, CE, ROSH, FCC, and ETL certificate, as well as other domestic and international authoritative certification and a number of patents. The products have been extensively applied and highly appraised in a number of major projects at home and abroad. And sell in more than 120 foreign countries and regions. In July 2014, we established Shenzhen branch as our production base. In August 2014, we were listed in NATIONAL EQUITIES EXCHANGE AND QUOTATIONS and launched into capital market successfully.

Screenshots

Fronius Solar.SOS4 screens
EPEVER Pair4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Fronius Solar.SOS versus EPEVER Pair: the parameters behind the verdict, then further details
ParameterFronius Solar.SOSEPEVER Pair
PriceFreeFree
Rating1.5 (2 ratings)2.0 (16 ratings) — better
Positive reviews0.0% of reviews14.9% of reviews — better
Number of ratings216 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.09.0 — better
Further details — not scored
Size15 MB92 MB
Age rating4+4+
DeveloperFronius International GmbHBEIJING EPSOLAR TECHNOLOGY CO., LTD.

Customer experience

Fronius Solar.SOS

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

EPEVER Pair

All ratings15 ratings
Positive20.0%
Neutral6.7%
Negative73.3%
Written reviews101 reviews
Positive14.9%
Neutral8.9%
Negative76.2%

In-app purchases

None

Fronius Solar.SOS

No in-app purchases

None

EPEVER Pair

No in-app purchases

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.

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