# Fronius Solar.web vs TSUN Smart

The clearest difference is rating: TSUN Smart at 5.0 against Fronius Solar.web's 3.1. TSUN Smart also leads on monetization model (free vs free with in-app purchases). Fronius Solar.web's advantage is ratings volume (7 vs 1) and update cadence (every 3 weeks vs every 6 weeks). On price, review sentiment, 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.

TSUN Smart holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Fronius Solar.web has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 19% and 18% positive.

Fronius Solar.web ships an update every 3 weeks, TSUN Smart every 6 weeks. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Fronius Solar.web | TSUN Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (7 ratings)](https://appshunter.io/ios/app/fronius-solarweb/id1528302827/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tsun-smart/id6468031219/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | **18.8% of reviews** | 18.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 168 MB | 69 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Fronius International GmbH](https://appshunter.io/developer/431601279) | [TSUNESS Co., Ltd](https://appshunter.io/developer/1718029393) |

## 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


### TSUN Smart

[App page](https://appshunter.io/ios/app/tsun-smart/id6468031219)

Monitor your solar power plants and devices from your mobile. Track real-time and historical generation data, calculate yield, and visualize individual panel performance with a custom layout.

**Highlights:** Manage multiple solar plants, Add and configure devices, View real-time generation data, Review historical generation data, Calculate solar yield, Build solar panel layouts, Monitor individual panel performance

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy setup and installation process
- 📊 Clear and intuitive user interface
- 🔌 Simple WiFi connection to inverters
- ⚡ Real-time energy production monitoring
- 🎯 Straightforward configuration with serial numbers

**What reviewers complain about**

- 🐛 Frequent server outages and disconnections
- 🐛 Missing data and incomplete daily records
- 🌐 Poor German translation with numerous errors
- ⏱️ Slow app performance and sluggish updates
- 📉 Data synchronization delays (15-30 minutes)

**Reported bugs**

- Server connection failures preventing data display
- Missing daily energy data in monthly summaries
- Incorrect total energy calculations
- Data frozen or not updating in real-time
- App crashes or fails to load

**Requested features**

- Display daily peak power values consistently
- Real-time data updates on demand (pull-to-refresh)
- Export data in CSV format
- Show maximum inverter capacity information
- Email and push notifications for alerts


## Frequently asked questions

### Is Fronius Solar.web free?

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

### Is TSUN Smart free?

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

### Which has better reviews, Fronius Solar.web or TSUN Smart?

TSUN Smart is rated higher. Fronius Solar.web averages 3.1 out of 5 from 7 ratings, while TSUN Smart averages 5.0 from 1 ratings.

### Do Fronius Solar.web or TSUN Smart have ads?

Neither Fronius Solar.web nor TSUN Smart shows ads.

### Which is updated more often, Fronius Solar.web or TSUN Smart?

Fronius Solar.web ships an update every 3 weeks, and TSUN Smart every 6 weeks. Most recently, Fronius Solar.web was updated on October 20, 2026 and TSUN Smart on October 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.*