# KOSTAL Solar App vs FENECON

The clearest difference is review sentiment: KOSTAL Solar App at 56% against FENECON's 0%. KOSTAL Solar App also leads on rating (2.0 vs 1.0) and ratings volume (6 vs 1). FENECON's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

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

KOSTAL Solar App holds the better App Store score, 2.0 against 1.0. That said, the two scores are not equally well evidenced: KOSTAL Solar App has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 56% of KOSTAL Solar App's written reviews are positive against 0% of FENECON's.

KOSTAL Solar App ships an update every 3 weeks, FENECON every 9 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | KOSTAL Solar App | FENECON |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (6 ratings)](https://appshunter.io/ios/app/kostal-solar-app/id1451610122/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/fenecon/id6476198535/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | **56.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free | Free |
| Size | 68 MB | 35 MB |
| Requires iOS | **14.5** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KOSTAL Solar Electric GmbH](https://appshunter.io/developer/961587700) | [FENECON GmbH](https://appshunter.io/developer/1713752939) |

## What reviewers say

### KOSTAL Solar App

[App page](https://appshunter.io/ios/app/kostal-solar-app/id1451610122)

Monitor your photovoltaic system remotely with this free app. View generation and consumption data, access historical information, and utilize a virtual battery feature for forecasting. Requires access to the KOSTAL solar portal and an inverter.

**Highlights:** Remote photovoltaic system monitoring, View generation and consumption data, Access historical system data, 3-day generation and consumption forecast, Virtual battery simulation, Graphical data display

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

**In-app purchases:** none


### FENECON

[App page](https://appshunter.io/ios/app/fenecon/id6476198535)

Manage your home, commercial, or industrial energy storage systems. Visualize real-time energy flows, analyze historical data, and configure advanced features like emergency power, EV charging, and dynamic electricity tariffs.

**Highlights:** Real-time electricity flow visualization, Historical energy flow analysis, Emergency power provisioning, EV charging control, Heat pump operation modes, Dynamic electricity tariff utilization

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

**In-app purchases:** none


## Frequently asked questions

### Is KOSTAL Solar App free?

KOSTAL Solar App is free to download, with no in-app purchases.

### Is FENECON free?

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

### Which has better reviews, KOSTAL Solar App or FENECON?

KOSTAL Solar App is rated higher. KOSTAL Solar App averages 2.0 out of 5 from 6 ratings, while FENECON averages 1.0 from 1 ratings.

### Do KOSTAL Solar App or FENECON have ads?

Neither KOSTAL Solar App nor FENECON shows ads.

### Which is updated more often, KOSTAL Solar App or FENECON?

KOSTAL Solar App ships an update every 3 weeks, and FENECON every 9 days. Most recently, KOSTAL Solar App was updated on October 26, 2026 and FENECON on October 24, 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.*