Support & FAQ

Open the Spots tab and tap + in the top-right corner. You can give each spot a name, tags and a cover, and mark your go-to spot as the Default Spot (Settings → Default Spot). Swipe left on a spot to edit or delete it.

The forecast model weighs cloud cover and cloud height, humidity, visibility, sun angle and other meteorological and astronomical data into a 0–100 score. Higher scores mean a better chance of spectacular glow or a clear Milky Way. Forecasts carry uncertainty — always confirm on site.

Location is used to compute local sunrise/sunset times, sun paths and weather forecasts. If you deny access, every core feature still works — just add your spots manually and all calculations run on those coordinates.

Pro unlocks iCloud sync, unlimited spots, the AR field assistant, forecast alerts and more. On a new device or after reinstalling, go to Settings → Pro → Restore Purchase with the original Apple ID to restore for free.

Pro users can enable iCloud sync (Settings → iCloud Data Sync) for automatic multi-device sync. Everyone can also use Settings → Export Full Backup to create a backup file and import it via "Restore from File" on the new device.

Once enabled, the app periodically checks glow and Milky Way scores for the coming days in the background and notifies you via local notifications when a high-score window appears. Alerts fire entirely on-device — nothing is uploaded.

Tides are rough estimates based on astronomical tidal forces — useful for photography planning (e.g. low-tide windows at seascape spots), but not a substitute for official tide tables. Never use them for navigation or water-safety decisions.

Simplified Chinese and English. Switch anytime in Settings → Language, or follow the system language.