A traffic alarm clock that also lets you sleep in
Most “traffic alarms” only do half the job: they wake you earlier when there's a jam. The better half is the other direction: sleeping in when the roads are empty.
How it works
- You set your usual alarm, where you need to be, when you need to arrive and how long you take to get ready.
- The night before, it checks predicted traffic for your arrival time and schedules the alarm.
- Shortly before dawn it checks live traffic and moves the alarm if something changed: a crash, roadworks, an unusually empty road.
- When it rings, it tells you why: “Leave by 8:44 · 16 min drive to work.”
Earlier and later
Waking you earlier for a jam is useful, but it happens a few times a month. Light traffic happens far more often, and a fixed alarm wastes that time every time. An alarm that also moves later on clear mornings gives back real sleep: 10–30 minutes on a good day.
The important safeguard: if traffic can't be checked, the alarm should ring at the time you set. Never later.
What to look for in a traffic alarm app
- Real system alarms. It should ring on silent and through Focus, not as a notification you can sleep through. On iOS 26, apps can do this with Apple's AlarmKit.
- Limits you control: how much later and how much earlier it may move.
- A fail-safe: rings at your set time if there's no data.
- Your travel mode: drive, transit, walk or bike.
- A “leave now” reminder so the extra sleep doesn't turn into running late.
- Privacy: your home and work addresses shouldn't need an account or a server.
Wakebird
Wakebird is built around all of the above. It uses Apple Maps traffic directly on your iPhone (no account, no tracking), rings with AlarmKit, and moves your alarm both ways within the limits you set: by default up to 30 minutes later and 60 minutes earlier. It also merges stacks of snooze alarms into one alarm with gentle nudges.
Regular alarms are free. Traffic-aware alarms are part of Wakebird Plus: $1.67 a month billed yearly, with a 7-day free trial.
Can't I just use Shortcuts?
You can get partway with an iPhone Shortcuts automation, but it can't safely move an alarm you're already asleep for, and it can't sleep you in. Here's what works and what doesn't.
Frequently asked questions
Is there an alarm clock that adjusts for traffic?
Yes. Traffic-aware alarm apps check your commute before waking you. Wakebird for iPhone moves the alarm both earlier for heavy traffic and later when the roads are clear.
Where does the traffic data come from?
Wakebird uses Apple Maps (MapKit) traffic, both predicted and live, requested directly from your iPhone.
What happens if there's no internet?
Wakebird schedules a real alarm ahead of time. If it can't check traffic, it rings at the time you set, never later.