Release Notes

April 2026

Performance, reliability, and international support — HelioPeak now speaks your language.

New: 6 Languages

• Full app translation: Dutch, French, German, Italian, and Spanish
• In-app language picker in Settings — override your device language per app
• All screens, charts, onboarding, settings, and FAQ translated

New: Smart Data Caching

• Completed days are cached locally after first load
• Reduces PVOutput API calls by up to 80%
• Offline support: view your full Week, Month, Year, and Total history without internet
• Today's data is always fetched fresh

New: System Info Card

• View your system's hardware details: panel count, inverter, orientation, tilt
• Collapsible card in System Details — data from PVOutput's system registry

New: Crash Reporting

• Automatic crash detection via Sentry (hosted in the EU)
• Only technical data — no personal data or solar production data
• Helps fix issues faster for all users

Improvements

• CSV export now uses comma-delimited format with UTF-8 BOM for universal Excel compatibility
• CO₂ Saved and Tree Equivalent now show "lifetime" and "per year" subtitles
• Estimated Revenue rounded to whole numbers
• Offline hint on Day tab explaining that intraday data is live-only
• Help & FAQ expanded to 20 sections including caching, crash reporting, and translations
• Privacy Policy updated with Sentry crash reporting section
• Cache automatically cleared when a system is deleted

12 April 2026

Initial release of HelioPeak — a modern solar production tracker for PVOutput.

Features

• Live dashboard with real-time production curve, peak power, and estimated revenue
• 5 chart periods: day, week, month, year, and all-time production
• Calendar and rolling chart modes
• Interactive charts with tap-to-inspect on all views
• Dashed average line on bar charts
• Multiple solar systems with drag-to-reorder
• System details with lifetime statistics
• CSV export of production history
• CO₂ savings tracking with tree equivalent
• Estimated revenue based on configurable electricity price
• Built-in demo mode — try the app without a PVOutput account
• Onboarding flow with PVOutput setup guide
• Dark and light mode support
• Currency selector (EUR, USD, GBP, CHF, AUD)
• Privacy-first analytics with opt-out toggle
• Help & FAQ with 17 sections
• Send feedback with device info

Requirements

• iOS 18.6 or later
• PVOutput.org account with a read-only API key