# KOSTAL Solar App

> Professional monitoring for your photovoltaic system.

Canonical page: [https://chrome-stats.com/d/com.kostal.solarapp.android](https://chrome-stats.com/d/com.kostal.solarapp.android)

## Overview

- **ID:** `com.kostal.solarapp.android`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** KOSTAL Solar Electric GmbH
- **Category:** PRODUCTIVITY
- **Downloads:** 311,364
- **Rating:** 2.92 / 5 (3,954 ratings)
- **Version:** 1.4.362
- **Last updated:** 2026-05-07
- **First published:** 2019-03-15
- **Publisher country:** DE
- **Size:** 25 MB
- **Data as of:** 2026-09-16
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.kostal.solarapp.android)
- **Website:** [http://www.kostal-solar-electric.com](http://www.kostal-solar-electric.com/)
- **Privacy policy:** [https://www.kostal-solar-electric.com/de/datenschutz/](https://www.kostal-solar-electric.com/de/datenschutz/)

## Description

The **KOSTAL Solar App** provides professional, real-time monitoring of your photovoltaic system directly from your smartphone or tablet. Designed for users with access to the KOSTAL solar portal and compatible inverters, the app offers an intuitive interface to track your system's performance wherever you are.

Features include graphical displays of home consumption, feed-in, and generation data, with detailed views over daily, weekly, monthly, or yearly periods. The app introduces a unique virtual battery tool that forecasts potential savings by simulating various battery capacities. Users can easily manage multiple plants, customize which systems to display, and share production statistics with friends and family. Stay informed with live updates, consumption forecasts, and historical data — bringing your solar energy insights right to your fingertips.

## Rankings

- #128,161 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_COARSE_LOCATION`
- `android.permission.ACCESS_FINE_LOCATION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.CAMERA`
- `android.permission.CHANGE_NETWORK_STATE`
- `android.permission.CHANGE_WIFI_MULTICAST_STATE`
- `android.permission.CHANGE_WIFI_STATE`
- `android.permission.INTERNET`
- `android.permission.NEARBY_WIFI_DEVICES`
- `android.permission.NFC`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.USE_BIOMETRIC`
- `android.permission.USE_FINGERPRINT`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.kostal.solarapp.android.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users report that the KOSTAL Solar App struggles with frequent crashes, login problems, and missing or inaccurate data, especially around battery usage and inverter details. Although some bugs have been fixed and the app provides useful charts, repeated forced updates cause issues like upgrade loops. The user interface is also criticized for poor design and confusing displays. Overall, the app is considered unreliable and less functional than competitor solar monitoring apps, frustrating users who rely on it to track their solar energy usage and system status.

### Pros

- The app has a good layout and provides nice charts for solar generation, usage, and feed-in data.
- Some longstanding bugs have been fixed, improving data accuracy such as historical data.
- When working properly, the app offers basic functionality to monitor the solar system.

### Cons

- Frequent app crashes, freezes, and login issues make it unreliable and hard to use.
- Important data points like battery supply and live inverter/string details are missing or incorrect.
- Poor user interface design with confusing elements and poor visibility (e.g., green background with small white text).
- Forced upgrades often cause an upgrade loop or app becomes unusable after updates.
- Battery and history graphs have issues with time zone sync and orientation problems, reducing usability.

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.kostal.solarapp.android)