Satvis vs AimSat

Satvis is a free, open-source satellite tracker for iPhone and iPad. It draws more than 16,000 satellites on a 3D globe in real time: Starlink, GPS, weather satellites, the ISS and many more. Set your location and it predicts when each one passes overhead. The sky view shows the sky from where you stand. Point your phone up to see the satellites in that direction. WHAT IT DOES • Visualize satellites on a 3D globe in real time, propagated on the device with SGP4 from CelesTrak's element sets • Show points, labels, orbits, orbit tracks, ground tracks, sensor cones, 3D models and ground station links per satellite, colored by orbit class (LEO, MEO, GEO, HEO) • Switch catalog groups on and off (Starlink, GNSS, weather, Earth observation, crewed stations), or search for a single satellite • Select a satellite to see its orbit, its next passes over your locations and its spacecraft details: country, operator, manufacturer, bus, mass and size • Track a satellite: the camera flies to it and follows it along its orbit • Save your location or any point you pick on the map, then list the upcoming passes over it and get a notification before one starts • Find satellites overhead in the ground-level sky view, aimed by dragging or by pointing your phone • See which satellites you could spot: the sky view dims those in Earth's shadow, too far away or in a daylit sky • Lay the globe over the base map and terrain you choose: satellite imagery, Earth at night or the day's VIIRS imagery • Start from the demo views, bookmark your own, and share any view as a link: it opens the same view on satvis.space • Open satvis.space links straight in the app • Keep using it offline, from the satellite data it last fetched WHERE THE DATA COMES FROM Element sets come from CelesTrak, refreshed several times a day, and are propagated on your device with SGP4. Spacecraft details come from Jonathan McDowell's GCAT. FREE AND OPEN SOURCE No account, no ads, no in-app purchases. Developed in the open at github.com/Flowm/satvis under the MIT license.

Point your phone - or your antenna - at any satellite in real time. AimSat gives you live azimuth and elevation for over 50 satellites: the International Space Station, MUOS military UHF birds, WGS broadband relays, amateur AMSAT passes, weather satellites, and more. WHAT IT DOES - Live sky position (azimuth + elevation) updated every second from your GPS - SGP4/SDP4 orbital propagation - the same math NASA uses, running on-device - Antenna alignment mode: hold your phone like a tray, tilt it up, and the crosshair tells you exactly where to point - Pass notifications: get alerted before a satellite rises over your horizon - Garmin watch support: az/el values mirror to your wrist hands-free - Filter by category: ISS, Amateur, Weather, GEO, MUOS, WGS - Pin, hide, and sort satellites to match your workflow - Full ground-track map with sub-satellite point AIMSAT PRO Upgrade once ($2.99) and unlock the 7-day pass planner - see every satellite window for the full week ahead, export passes to your calendar, and plan before you're in the field. No subscription, ever. BUILT FOR OPERATORS Whether you're a ham radio operator chasing FM satellites, a SATCOM technician aligning a terminal, or just someone who wants to wave at the ISS - AimSat has the precision you need without the bloat you don't. PRIVACY Your location never leaves your device. No accounts, no analytics, no tracking. Orbital data is fetched from CelesTrak and Space-Track; everything else runs offline. Map data (c) OpenStreetMap contributors, under the Open Database License (ODbL).