# Fronius Solar.web vs S

The clearest difference is review sentiment: S at 66% against Fronius Solar.web's 19%. S also leads on rating (4.3 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.

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

S holds the better App Store score, 4.3 against 3.1. Both are backed by a comparable volume of ratings — 7 and 15 respectively. Written reviews point the same way: 19% of Fronius Solar.web's written reviews are positive against 66% of S's.

Fronius Solar.web ships an update every 3 weeks, S monthly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Fronius Solar.web | S |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (7 ratings)](https://appshunter.io/ios/app/fronius-solarweb/id1528302827/reviews) | **[4.3 (15 ratings)](https://appshunter.io/ios/app/s-miles-installer/id1544207772/reviews)** |
| Number of ratings | 7 | **15** |
| Positive reviews | 18.8% of reviews | **65.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 168 MB | 224 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Fronius International GmbH](https://appshunter.io/developer/431601279) | [Hoymiles Power Electronics Inc.](https://appshunter.io/developer/1219594358) |

## What reviewers say

### Fronius Solar.web

[App page](https://appshunter.io/ios/app/fronius-solarweb/id1528302827)

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:** iMessage stickers

**In-app purchases:** none

**What reviewers like**

- 🚀 Sleek and intuitive UI
- 👍 Comprehensive monitoring of solar production and consumption
- 🔋 Excellent battery management features

**What reviewers complain about**

- 🐛 Frequent login issues and app crashes
- ⏱️ Slow data updates and laggy performance
- 📉 Inconsistent or missing historical data
- 🔒 Lack of security features like biometric login

**Reported bugs**

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

**Requested features**

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


### S

[App page](https://appshunter.io/ios/app/s-miles-installer/id1544207772)

This app helps installers of distributed PV power plants manage accounts and provides visual guides for microinverter installation. It offers rapid configuration, power generation data, and detailed alarm information for commissioning and diagnostics.

**Highlights:** Account monitoring, Visual installation guide, Microinverter configuration, Power generation data, Module-level data, Alarm information, Commissioning & diagnostics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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 4.3 from 15 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 October 29, 2026 and S on October 30, 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.*