SkyFlux
The night sky,
on your horizon
Aurora radar that knows the Kp your latitude actually needs, a meteor-shower calendar, eclipses, and a 3D solar system you can fly through — with no ads, no account, and nothing tracking you.
SkyFlux in 30 seconds
Inside the app
Point it at the skyConstellation art over real stars, corrected with the World Magnetic Model. 83,468 stars on board, and a free pack takes it to magnitude 11 — what a small telescope shows.
Aurora radarNot a percentage overhead — the Kp your own latitude needs.
The living SunLive GOES imagery in six wavelengths, sunspots and flares.
Solar System 3DFly to any planet and scrub time five years either way.
Tonight, in one screenDarkness, cloud by the hour, and which planets are up.
Galaxies & wondersHubble and ESO imagery, then find each one in your own sky.
Your horizon, not a percentage
Most aurora apps show the chance overhead — 0% while the sky glows green to the north. SkyFlux tells you the Kp your own latitude needs for the aurora to reach your horizon.
Meteor showers & eclipses
Every major shower with its radiant live on the sky map, and eclipse timings for where you stand — computed on the device, months ahead, offline.
Sky reminders and aurora alerts
Switch on a reminder for the evening a meteor shower peaks, an eclipse is due, or the Moon is full. These are scheduled on your device, worked out from the sky over your own location — no account, no server, and they arrive even when the app is closed. Aurora alerts work differently: the aurora cannot be predicted months ahead, so our server watches the live forecast. Aurora alerts stay off until you switch them on; then the app sends the server a random ID, a push token, your rounded location and your alert settings. Switch them off and that record is deleted.
Point it at the sky
An AR sky view corrected with the World Magnetic Model, so the compass points where the stars actually are. Red night mode keeps your eyes dark-adapted. A couple of degrees always remain — a phone compass is not a theodolite, and the app says so rather than pretending.
Quiet by design
No ads. No account. No tracking. Your location leaves the phone only after rounding to a tenth of a degree (about 11 km) — for the cloud forecast, a place name and, if you switch them on, aurora alerts. The weather and place-name services receive it through our server, so they never see your IP address. The one exception is a Google map you open yourself: it starts at your exact position.
Privacy is the feature. No account, no advertising ID, no ad networks, no analytics, no tracking, and the sky you see is calculated on your own device. The only outside services built in are Google’s map, which runs only while you have it open and collects its own data while it does; the app store’s purchase system; and, only if you switch on aurora alerts, Google’s or Apple’s push service. Crash reports stay off unless you switch them on. What the app fetches from the network, and why, is written out plainly in the privacy policy.
English · Eesti · Suomi · Deutsch · Svenska · Norsk · Dansk · Français · Español · Italiano · Русский · Nederlands · Polski · Português · 日本語 · 繁體中文 · हिन्दी
Get it on your phone
Scan the code, or open skyflux.app/download on your phone. It takes you to SkyFlux on Google Play: no account, no ads, and Google Play keeps it up to date.
