AuroraCall: Northern Lights

Will tonight be worth going outside? AuroraCall answers with one word — and wakes you up when it is.

No Kp charts to decode, no jargon. One screen tells you tonight's verdict for your exact location: NO, MAYBE, YES or STRONG YES — with the best time window and which direction to look.

ONE SCORE, FIVE REAL FACTORS Every night we compute a 0-100 visibility score from the things that actually decide whether you see an aurora: • NOAA's Ovation aurora oval — the physical model of where the aurora is right now • The geomagnetic forecast for your darkness hours • Cloud cover at your location, hour by hour • Moonlight washing out faint displays • Real astronomical darkness — computed on your device

THE WAKE-UP CALL IS THE PRODUCT • Our servers re-score your sky every 15 minutes, all night. • You get woken only above your chosen threshold — alerts stay rare, so they stay trusted. • Within-the-hour warning: we watch live solar wind from the DSCOVR spacecraft; when it turns strongly favorable during your darkness, you get a heads-up minutes ahead — the same signal professionals watch. • G3+ storm watches: know 1-2 days early when aurora may reach far south of normal.

MADE FOR FIRST-TIMERS • A 60-second guide: dark adaptation, escaping streetlights, and why your phone camera sees auroras your eyes can't at low latitude. • Solar maximum is now — the best ~18 months in two decades. Southern Hemisphere fully supported: AuroraCall points you south and tracks the aurora australis too.

BETWEEN STORMS A countdown of the next real sky events — Perseids, Geminids, solstices — so the app earns its place year-round.

AURORA PRO Everything above is free — the nightly verdict, the wake-up alerts, the storm watches and the beginner's guide. Pro adds one thing: the 3-night outlook, so you can see which night is worth the drive before you commit to it. Auto-renewing subscription, clearly priced, cancel anytime.

Subscription: auto-renews unless canceled ≥24h before the period ends; payment charged to your Apple ID at confirmation; manage/cancel in App Store settings.

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