Heavens-Above Pro

Heavens-Above

About this app

When can I see the ISS? What's that light in the sky? The official Heavens-Above app provides you with precise pass predictions for the ISS, visible satellites and radio satellites. Main features include:


Live sky chart
See what's in the sky above you right now or at a given moment.

Pass predictions
Get precise predictions for passes of the International Space Station (ISS) and most visible satellites.

Radio satellites
Get passes for amateur radio satellites, complete with uplink and downlink information.

Comets
Find the location of bright comets, including NEOWISE, in the sky.

All calculations performed locally
Predictions are generated right on your phone so you only need a data connection every few days.

Orbit and ground track
See details about the orbit of any selected satellite rendered and with all relevant data.

Pro version only: The position of all satellites can be displayed at once and filtered down.

Satellite details
Get detailed information about any satellite, as provided by our Heavens-Above website.

Timeline
Get a visual overview over passes and animate the position of satellites on the sky chart and on the ground track.

Pro version only: The timeline contains the elevation and detailed brightness prediction of passes.

Night mode
An optional red on black color scheme to preserve your night vision.

Tracker
Easily find or identify any object in the sky by orienting your device towards it.

Calendar Integration
Quickly add interesting passes to your calendar so you won't miss them.

Custom TLEs
Pro version only: You can create satellite entries with your own TLEs.

No advertisements
Pro version only: This version is free of advertisements. You can try the free version before buying this one.

Ratings and reviews

Absolutely LOVE the app, especially the alert for ISS sightings! What I'm puzzled about are the other visible objects which move like satellites, but they do not appear on this app. Are military satellites hidden from tracking for obvious reasons? Potentially Space Force (insiders say we've been up there for 20+ yrs!)? Also would love to see Iridium Flares and Comets identified ahead of time. If they are available in the Pro Version, I just haven't seen any yet. Very easy to use, night view looks great and is easy on the eyes! .

Notifications are terrible. Gives a notification for every amateur radio satellite, even the ones not selected, except for the most important one: the International Space Station. I have the settings configured correctly; it just doesn't send them. Really frustrating when I use this app to plan when to make radio contacts.

I love this app and have used it for several years ... since before it was an app, actually. Everything is good ~except~ now that we've moved to Arizona the Daylight Saving Time (non) observance throws all the predictions off by an hour. Can you show me how, or put in a time zone option with and without DST toggles so that the predictions will reflect local time? I imagine Hoosiers have the same problem. Thanks so much for a great app.

What’s new

Radio frequencies get shifted according to doppler effect during pass.
Dialog discloses use of location data.