Heavens-Above

Heavens-Above

Contains ads

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.

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.

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.

Financed by adverts
This version integrates advertisements to make it available for free. Get Heavens-Above Pro to remove the adverts.

Ratings and reviews

Absolutely wonderful, precise tool to see when and where anything in low Earth orbit is passing overhead, from the ISS and other space exploration craft, to Starlink satellites, to decades-old debris like rocket boosters. You can filter by minimum magnitude, show only visible passes, set parameters for what's defined as "visible" and more. There's a few more tools on their website, but for a free app, this is better than I could ask for.

This app has almost made itself useless, due to it not updating data about the current sky, specifically for satellites. Until a few weeks ago, I would have given four stars. If the update issue is resolved, without degrading anything else, I will re-rate.

Since late October, the app won't connect to the server rendering the app completely worthless. Fix it because it's not on my end. I tried everything. Edit: It mysteriousky finally connected to the server and downloaded the satellite data. I'm happy now.

What’s new

Dialog discloses use of location data.
Pro version only: radio frequencies get shifted according to doppler effect.