Steven's Launch Guide for iPhone and Android
Support
Bug reports, feature ideas or a viewing spot we should add: apps@stevenmadow.com. Launch Guide is a small independent project, so replies may take a few days.
A launch time changed but I didn't get an alert
Alerts go to launches you follow (the bell on a launch page). Check that notifications are on: on iPhone in Settings → Notifications → Launch Guide; on Android in Settings → Notifications → App notifications → Launch Guide (the “Launch updates” channel). Delay alerts usually arrive within five minutes of the schedule changing.
How do I get the countdown on my Lock Screen or in StandBy?
Open a launch and tap Live. For launches you follow, it also starts by itself about an hour before liftoff (turn this off in the Following tab). With the phone charging on its side and locked, StandBy shows the countdown full-screen. For a countdown that's always there, add the Countdown Clock widget to StandBy.
How do I get a live countdown on Android?
Open a launch and tap Live, or follow it: the countdown notification starts by itself an hour before liftoff and, after liftoff, counts down to each booster burn. On Android 16 it also shows on the lock screen and as a chip in the status bar. For your nightstand, add the Countdown clock widget to your home screen.
How do wake-up alarms work?
On a launch page, tap “Need to wake up for this one?”. Choose a time before liftoff, or a set time like 4:00 AM that only rings if the launch is still on for that day. Alarms ring at full volume even on silent, and you'll get a notification if a slip moves or cancels one. On Android, allow Launch Guide to set alarms (and to show full-screen alarms) when it asks, so the alarm rings on time and opens the Stop/Snooze screen.
Why does a launch say “Time TBD” or “Date TBD”?
Launch providers often announce a day or month before an exact time. Launch Guide shows only what has actually been announced rather than guessing.
What do the weather numbers mean?
The percentage is the 45th Weather Squadron's probability of weather acceptable for launch. Cloud cover by layer comes from Apple Weather on iPhone and Open-Meteo on Android: low clouds are what usually hide a rocket, while a thin high layer often lets the plume glow through.
Launch data from The Space Devs' Launch Library 2. Not affiliated with NASA, SpaceX, ULA, Blue Origin or the U.S. Space Force. Launch times change often; always confirm before you drive.