Choose how OwlWatt collects your solar data
Three paths, same monitoring, same subscription price. Each suits a different setup — pick what matches you.
Recommended
Raspberry Pi collector
$59 one-time + subscription
- 5-second resolution, always on
- Runs 24/7 — independent of your laptop
- Buffers data offline during outages
- Plug-and-forget appliance, auto-updates
- Works with any inverter we support (currently Enphase, more in progress)
macOS desktop app
Free download + subscription
- 5-second resolution while running
- No hardware to buy — runs on your Mac
- Best when your Mac is on most of the day
- Requires macOS 12+ (Apple Silicon and Intel)
- Available now for macOS only; Windows users use the Pi
Cloud-only (Enphase OAuth)
No setup + subscription
- Zero install — log in with Enphase Enlighten in your browser
- Works on every OS — universal fallback
- 15-minute resolution (limited by Enphase's API)
- No offline resilience — depends on Enphase's cloud
- Enphase systems only (other brands need the Pi)
Already a software-collector customer and want to upgrade to the Pi? You can switch from the customer dashboard — Pi pricing is slightly higher after onboarding ($89 vs $59 at signup).