Comparison

Fronius Solar.web vs S

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

Head to head
About

Fronius Solar.web

Monitor your photovoltaic system's performance with live data, historical energy trends, and expected generation. Manage batteries, analyze earnings, and view system components. Widgets provide quick access to key information.

Highlights
  • Live PV system data display
  • Historical energy data analysis
  • Expected generation forecasting
  • Battery management features
  • Earnings evaluation
  • System component viewing
  • Home and lock screen widgets
Features
Read full description

With the Fronius Solar.web App you have many useful features: - Useful display of live data of your PV system - Historical energy data in form of various time intervals - Expected generation data of your PV system* - Extended weather data* - Battery management with the Battery control and Energy Cost Assistant feature* - Adjust your device settings (i.e. Battery max. SoC)** - Evaluation and analysis of your earnings - Viewing the components of your PV system - Useful Widgets for your Lock- and Home Screen * Depends on your PV system configuration (Devices i.e. Smart Meter, Battery, ...) and Solar.web Premium subscription (Chargeable subscription). ** Fronius GEN24, Verto or Tauro needed. Minimal required firmware version 1.40.8-1 or higher

About

S

This app streamlines the installation and monitoring of distributed PV power plants. It offers an easy-to-use interface for setting up monitoring accounts and provides visual guidance for microinverter installation. Access plant-level and module-level power generation data, along with detailed alarm information for diagnostics.

Highlights
  • Easy account monitoring
  • Visual installation guide
  • Rapid account configuration
  • Plant-level data
  • Module-level data
  • Alarm information
Features
Read full description

S-miles Installer is a mobile application developed by Hoymiles especially for installers of distributed PV power plants. It provides an EASY-TO-USE procedure for monitoring accounts and a visual physical layout guide for the installation of microinverters, which helps installers configure monitoring accounts rapidly, and provides installers power generation data on both plant-level & module-level as well as detailed alarm information about the power plant for commissioning & diagnostics.

Screenshots

Fronius Solar.web4 screens
S4 screens

Verdict

The call

The clearest difference is review sentiment: S at 66% against Fronius Solar.web's 19%. S also leads on rating (4.2 vs 3.1) and monetization model (free vs free with in-app purchases). On price, ratings volume, update cadence and ads 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

S holds the better App Store score, 4.2 against 3.1. Both are backed by a comparable volume of ratings — 7 and 14 respectively. Written reviews point the same way: 19% of Fronius Solar.web's written reviews are positive against 66% of S's.

UpkeepUpdate frequency

Fronius Solar.web ships an update every 3 weeks, S monthly. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 7 level
Fronius Solar.web versus S: the parameters behind the verdict, then further details
ParameterFronius Solar.webS
PriceFreeFree
Rating3.1 (7 ratings)4.2 (14 ratings) — better
Positive reviews18.9% of reviews65.5% of reviews — better
Number of ratings714 — better
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.0 — better
Further details — not scored
Size168 MB208 MB
Age rating17+4+
DeveloperFronius International GmbHHoymiles Power Electronics Inc.

Customer experience

Fronius Solar.web

All ratings7 ratings
Positive57.1%
Neutral0.0%
Negative42.9%
Written reviews541 reviews
Positive18.9%
Neutral13.5%
Negative67.7%

S

All ratings14 ratings
Positive78.6%
Neutral7.1%
Negative14.3%
Written reviews119 reviews
Positive65.5%
Neutral8.4%
Negative26.1%

Bugs and requests

Fronius Solar.web

Reported bugs

3 issues
  • Daily production graph not functioning properly
  • Inability to log in or add new installations
  • Discrepancies between app and web portal data

Requested features

4 requests
  • Customizable notifications and alerts
  • Integration with smart home platforms
  • Improved data visualization and export options
  • Apple Watch app for at-a-glance monitoring

S

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Fronius Solar.web

No in-app purchases

None

S

No in-app purchases

Questions

Is Fronius Solar.web free?
Fronius Solar.web is free to download, with no in-app purchases.
Is S free?
S is free to download, with no in-app purchases.
Which has better reviews, Fronius Solar.web or S?
S is rated higher. Fronius Solar.web averages 3.1 out of 5 from 7 ratings, while S averages 4.2 from 14 ratings.
Do Fronius Solar.web or S have ads?
Neither Fronius Solar.web nor S shows ads.
Which is updated more often, Fronius Solar.web or S?
Fronius Solar.web ships an update every 3 weeks, and S monthly. Most recently, Fronius Solar.web was updated on September 22, 2026 and S on September 23, 2026.

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