Fronius Solar.web vs EMA Manager
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
EMA Manager
Manage APsystems microinverter system commissioning, monitoring, and troubleshooting remotely. Enhance customer service with real-time diagnostics and site management capabilities from your smartphone or tablet. Track installer statistics and energy production for valuable insights.
- System commissioning
- Remote monitoring
- Troubleshooting diagnostics
- Energy production tracking
- Site configuration
- Installer statistics
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APsystems introduces the EMA Manager app, a new app to manage APsystems microinverter system commissioning, monitoring and troubleshooting. Installers can now enhance their customers service capabilities anywhere, anytime via their smartphone or tablet. This app conveniently streamlines monitored system installation while providing installers with many new and improved features for remote site management. Benefit from all existing features available in the EMA web portal on your smartphone or tablet using a single sign-in. Real-time systems check, diagnostics capabilities and troubleshooting are now coming to your hands with the EMA Manager App. This new app, available on APP Store which also includes a revamped ECU_APP, provides additional features including, ECU and microinverter connectivity, energy production, system troubleshooting, and full site configuration and monitoring capability without the need to be on-site. Included in the new app are installer-specific statistics, including total number of customers, inverters installed, and total energy produced which provides installers with valuable information as well as a unique selling tool to showcase their environmental impact. The new app is being introduced as APsystems has recently surpassed 100,000 registered installations in more than 120 countries on its EMA platform. As APsystems’ footprint continues to grow worldwide, this app redefines ease of solar inverter installation just as APsystems has redefined simplicity and convenience in its easy-to-install inverter platform.
Screenshots
Verdict
The clearest difference is monetization model: EMA Manager at free against Fronius Solar.web's free with in-app purchases. EMA Manager also leads on iOS requirement (13.1 vs 16.0). On price, rating, review sentiment and ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 3.1 for Fronius Solar.web against 3.1 for EMA Manager. Both are backed by a comparable volume of ratings — 7 and 15 respectively. Written reviews are what separate them: 19% of Fronius Solar.web's written reviews are positive against 16% of EMA Manager's.
Fronius Solar.web ships an update every 3 weeks, EMA Manager fortnightly. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.
| Parameter | Fronius Solar.web | EMA Manager |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (7 ratings) | 3.1 (15 ratings) |
| Positive reviews | 18.9% of reviews — better | 16.0% of reviews |
| Number of ratings | 7 | 15 — better |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.1 — better |
| Further details — not scored | ||
| Size | 168 MB | 243 MB |
| Age rating | 17+ | 4+ |
| Developer | Fronius International GmbH | Altenergy Power System,Inc. |
Customer experience
Fronius Solar.web
EMA Manager
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
EMA Manager
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Fronius Solar.web
No in-app purchases
EMA Manager
No in-app purchases








