High confidence · Latest 116 of 170 total reviews analyzed · Based on 170 reviews. Signal may be noisy.

Upset

Recent user voice shows a upset sentiment. Users appreciate the core layout and visual presentation of solar data provide a clear overview for users, but report frequent data synchronization failures and long delays prevent real-time monitoring of solar installations and unstable login sessions and forced re-authentication cycles disrupt daily access to energy management tools.

Rating: 2.9

Reviews: 170

Confidence: high

How did the latest release land?

Overall
2.9/ 5
(3.9K)
Current version
2.0/ 5
-0.9 vs overall
(6)
Main signal post-update: frequent data synchronization failures and long delays prevent real-time monitoring of solar installations.

Sentiment over time

Weekly average rating and review volume across stores, last 90 days.

Review themes

Praise

What users love

  • The core layout and visual presentation of solar data provide a clear overview for users
    • Users appreciate the visual layout and the information displayed when the app functions correctly
    • The interface design is described as helpful for analyzing solar energy production
Complaint

Common complaints

  • Frequent data synchronization failures and long delays prevent real-time monitoring of solar installations
    • Users report that live data is frequently missing or delayed by several hours
    • The app often fails to fetch or display current production and consumption metrics
  • Unstable login sessions and forced re-authentication cycles disrupt daily access to energy management tools
    • Users complain about being forced to log in repeatedly during a single session
    • The lack of persistent session tokens makes the app tedious to use for daily checks
Request

Most requested

  • Direct access to live inverter data without relying on cloud synchronization or portal maintenance
    • Users request a way to view real-time data directly from the hardware
    • There is a strong desire for a local connection mode to bypass cloud outages

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by KOSTAL Solar App, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Data licensed under CC-BY-NC 4.0