Battery setup
Set chemistry, amp-hour capacity, nominal voltage, solar watts, and optional inverter size.
Offgrid Power
Know whether your battery and solar setup can carry the day.
Offgrid Power estimates daily power use from your battery, solar panels, inverter, and loads. Pro forecasting can use your approximate location and Apple WeatherKit conditions to estimate solar potential across upcoming days.
Offgrid Power
LoadsFridge, lights
SolarForecast
HistoryLocal
No adsNo tracking
Built for practical off-grid decisions
Fast estimates for the choices you make before and during a trip.
Load planning
Add and adjust common loads such as fridges, lights, pumps, fans, chargers, and other appliances.
Solar forecast
Estimate effective sun hours and expected solar gain using daylight calculations, with Pro weather-aware forecasting where available.
Daily status
Compare expected solar gain with remaining usage so you can see whether the day is trending positive or negative.
History
Keep a lightweight local record of recent daily estimates for review. History stays on your device.
Privacy first
No advertising trackers, no background location tracking, and no sale of personal information.