GPS Satellite Sky Map

About this app

See where you are, how good the fix is, and which GPS satellites are overhead — with a sky map computed from real orbit data. SATELLITE SKY MAP A polar chart places the GPS constellation above you, computed from the public GPS almanac (US Coast Guard / CelesTrak) propagated with the standard orbit equations for your position and the current time. It is refreshed weekly and works offline from a bundled copy. These are PREDICTED positions, and the app labels them as such on screen. iOS gives apps no per-satellite data at all — no live signal strengths, no which-satellite-is-in-use, and no GLONASS or Galileo. What you see is where the GPS satellites actually are, not what your receiver is hearing from them. POSITION AND FIX QUALITY • Latitude and longitude, in your choice of format • Accuracy in metres with a plain quality rating • Altitude, ground speed and course • A gauge that tells you at a glance whether the fix is worth trusting WAYPOINTS Save a spot, navigate back to it with distance and bearing, and get an arrival alert. Export the lot as CSV or GPX. LOCK SCREEN CARD While the app is open, a Live Activity shows accuracy, altitude and speed on the Lock Screen and in the Dynamic Island. It cannot keep updating once the phone is locked — this app does not run location in the background — so it marks itself PAUSED rather than leaving a stale reading looking current. WHO USES IT Hikers and paddlers checking fix quality before relying on it · paragliding and drone pilots · surveyors wanting a quick accuracy read · anyone curious what is overhead right now Available in 25 languages.

The Lock Screen card no longer lies to you. It could only ever update while the app was open, because this app does not track your location in the background. So the moment you locked the phone — the moment the card actually became visible — it froze on the last reading and sat there looking current, sometimes for hours. It now marks itself PAUSED, with the time of the last fix, so a stale number is never mistaken for a live one. Reopen the app and it resumes. Also in this update: • The full-screen ad that appeared the instant your position locked on is gone. Acquiring a fix is not something you asked for, and an ad landing on that moment read as an ad for opening the app. It now appears when you copy your coordinates — a result you actually wanted. • The description no longer says the app tracks GLONASS and Galileo satellites in real time. On iPhone it cannot: iOS gives apps no per-satellite data at all — no live signal strengths, no which-satellite-is-in-use, and nothing outside GPS. The sky map shows where the GPS constellation genuinely is, computed from the public almanac for your position and time, and is labelled as a prediction. That part was always honest on screen; now the store page matches it.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 18, 2026 · 2:57 AM Free