Aurora Watch Global vs Heliograph

Track the Northern and Southern Lights in real time - wherever you are. AuroraWatch is a free, ad-free app that brings together NOAA's OVATION aurora model, real-time KP index readings, live solar wind data from NOAA SWPC, and your local cloud cover into one clear view. No clutter, no ads, no guesswork - just the data you need to know when the sky might put on a show. WHY AURORAWATCH Most aurora apps only cover the Northern Hemisphere. AuroraWatch tracks both the Aurora Borealis and Aurora Australis, so whether you're chasing lights in Norway, Alaska, Tasmania, or New Zealand, you get the same real-time data. FREE FOR EVERYONE • Interactive aurora activity map using NOAA's OVATION model • Real-time KP index • Live solar wind data from NOAA SWPC (density, speed, Bz) • Local cloud cover and moon illumination, so you know if you'll actually see anything • Substorm Monitor (Beta) - live USGS magnetometer readings for aurora burst timing • Solar flare probabilities • Live SDO solar imagery • Ask Siri about tonight's aurora chances • Customizable push notifications GO PRO Upgrade for deeper data and always-on visibility: • AI summaries on the KP and Solar Wind screens - written privately on your iPhone with Apple Intelligence where available • Live Activity on the Lock Screen and Dynamic Island - KP, solar wind, Bz, and cloud cover at a glance • Home Screen widgets for KP, cloud cover, solar wind, and a short forecast • Apple Watch dashboard with KP, weather, upcoming changes, and solar wind • Aurora Now alerts when aurora may be visible in your area • Minute-resolution KP charts, a 45-day Ap outlook, GOES X-ray history, and a full solar event log • 48-hour solar wind history with interactive charts and date scrubbing • Three premium themes - Northern Lights, Eclipse, and Storm Pro is available as a weekly, monthly, or annual auto-renewing subscription. Cancel anytime in your App Store account settings. BUILT ON REAL DATA AuroraWatch pulls directly from NOAA's Space Weather Prediction Center, NASA's Solar Dynamics Observatory, and USGS magnetometers - the same sources space weather scientists use - and refreshes automatically so you're always looking at current conditions, not stale forecasts. Download AuroraWatch and never miss a night the sky lights up. SUBSCRIPTION DETAILS - AuroraWatch Pro Pricing: AuroraWatch Pro (Weekly): $2.99/week (or your local price) AuroraWatch Pro (Monthly) $4.99/month (or your local price) AuroraWatch Pro (Yearly) $29.99/year (or your local price) Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to Settings > [your name] > Subscriptions. Privacy Policy: https://aurorawatch.app/privacy Terms of Use (Apple): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Use: (AuroraWatch): https://aurorawatch.app/terms/

Heliograph is a focused, native space-weather app for Solar Cycle 25. It pulls current conditions and short-horizon forecasts directly from public government sources and shows them plainly — with an honest timestamp on every value. What "live" means here Heliograph shows real conditions and short-range forecasts — not millisecond telemetry. While the app is open it refreshes on each source's own cadence, and every reading carries an "as of" timestamp so you always know how fresh it is. The freshest inputs come from NOAA's SOLAR-1 spacecraft at L1: in-situ solar wind within about 5 minutes, CME imagery within about 30 minutes — that is the ceiling, and we never pretend to beat it. Typical refreshes: aurora oval ~5 min, solar wind ~60 s, Kp ~15 min, NOAA G/S/R scales ~5–10 min, X-ray flares ~60 s, solar cycle daily. When solar-wind data is unavailable, the aurora forecast honestly falls back to a Kp-driven nowcast with reduced lead time, and Bz-dependent storm triggers are paused and labelled — we show the degraded state instead of hiding it. Ambient Mode — a living aurora The signature experience: a full-screen, data-reactive ambient that means something. One derived intensity drives everything — calm teal when quiet, brightening greens as activity builds, a magenta-violet push in a real storm. Pick your scene: a 3D aurora globe with the live OVATION oval over Earth's night side (australis first), the live Sun from NASA SDO, or a flowing solar-wind field. On Apple TV it's the lean-back living-room hero; on iPhone you can AirPlay or screen-mirror it to any TV. Built to run for hours with burn-in and thermal care — and it always eases to a calm fallback rather than fake a storm from stale data. Aurora australis, first-class Most aurora apps treat the Southern Hemisphere as an afterthought. Heliograph renders aurora australis first, alongside borealis — a real polar map with the auroral oval, local darkness/terminator, and your own viewline, plus a forecast scrub over the next 90 minutes. A "where do I go tonight?" ground map shows the visibility line across your region and how far toward the pole you'd need to travel. The infrastructure-impact lens Heliograph translates the current storm level into plain-language impact on what storms actually touch: the power grid (geomagnetically induced currents), GPS/GNSS accuracy, and HF radio. A world impact map places those effects on the day/night globe (colour-blind-safe). It is deliberately non-alarmist — most days, even minor storms, pass with no noticeable effect, and the app says so. Storm tracking & alerts A quiet → watch → storm state machine reads solar wind and Kp and shows exactly which triggers fired, with a Sun → L1 → Earth cinematic of the real arrival lead time. On iPhone, while you have Heliograph open, a storm Live Activity surfaces a significant storm on your Lock Screen — no account, no tracking. You can also opt into on-device "aurora likely tonight" alerts. On every surface: Lock Screen and StandBy widgets, a Control Center control, plain-language explainers, a colour legend, and a recent-activity solar time-lapse. Privacy, by design No account. No analytics. No tracking. No third-party SDKs. Data is fetched directly from public NOAA and NASA endpoints — Heliograph runs no servers of its own and stores nothing about you. Your location, if you grant it, is used only on-device to draw your aurora viewline — never stored or sent anywhere. Data sources NOAA Space Weather Prediction Center (SWPC) — SOLAR-1 at L1, the GOES satellites, and ground stations — plus NASA SDO solar imagery via the Helioviewer Project. Heliograph is not affiliated with or endorsed by NOAA or NASA. Ambient Mode includes solar imagery, hourly Moon visualization, latest published Earth photography, dated cloud and thermal-detection maps, Aurora Globe and Solar Wind. Image dates and source details are available in the app. These views are not live video or emergency warnings.