AimSat
Satellite tracking tool
Free · Designed for iPad. Not verified for macOS.
Track satellites live, plan passes, and aim your antenna with a guided radar. New: two-station planner finds when a satellite is visible to you and a friend.
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).
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Main thing to try: two-station mode in the pass planner.
Enter a second station (grid square or place name) and check the mutual-visibility windows, then share the sked card and confirm the calendar invite lists the right station.
Also check: saved station persists after relaunch, the planner filter panel collapses on iPhone, and share cards show coastlines under the map.
The developer, ZACHARY AARON CALDWELL, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- ZACHARY AARON CALDWELL
- Size
- 24.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Zac Caldwell