Hi everyone,
I’m a solar enthusiast from Belgium and I’ve been using PVOutput for years to monitor my panels. I always wanted a modern iOS app to quickly check my production, couldn’t find one, got impatient, so I built one myself.
HelioPeak is now available on the App Store. It’s a privacy-first solar production tracker built specifically for PVOutput users.
What you get:
- Live dashboard with real-time production curve, peak power, and estimated revenue
- 5 chart periods: Day, Week, Month, Year, and All Time
- Calendar and Rolling chart modes
- Tap and drag on any chart to explore data points
- CO₂ savings and tree equivalent tracking
- System details with panels, inverter, orientation, and lifetime statistics
- CSV export of your complete production history
- Multiple systems with drag-to-reorder
- Built-in demo mode, try it without connecting your own system
- Available in 6 languages: English, Dutch, French, German, Italian, Spanish
- Dark and Light mode
HelioPeak caches completed days locally on your device after the first load, reducing API calls by up to 80%. Only today’s data is fetched fresh. This means you won’t run into rate limits during normal use, and your historical charts work fully offline once loaded. Your API key stays on your device, no intermediary server, no tracking, no ads.
HelioPeak is free with one system (all features included). If you monitor multiple systems, a one-time in-app purchase (introductory price for a limited time is €2.99) unlocks unlimited systems. No subscription.
Your feedback helps me decide what comes next.
App Store: https://apps.apple.com/app/id6762064486
Website: https://heliopeak.app
Release notes: https://heliopeak.app/releases
Privacy policy: https://heliopeak.app/privacy
I’d love to hear your thoughts. What works, what doesn’t, what’s missing?
You can reply here or reach me at info@heliopeak.app.
HelioPeak is not affiliated with PVOutput.org.
As always, use at your own risk 
Launch offer: 25 free unlock codes
To celebrate the launch, I’m giving away 25 free codes for the multi-system upgrade. If you’d like one, reply with your PVOutput username. First come, first served.
All I ask in return is that you share any bugs or feedback you come across, it helps me improve the app for everyone. Codes are redeemable via the App Store and work for the full unlock, no strings attached.
Cheers, Sven