StopSure

Never miss your stop.

A quiet alarm for your train stop. Pick your stations once — your phone vibrates as each one comes up, even with the screen off and no signal underground. Read, listen, nap: StopSure watches the stops.

Coming soon to Google Play
No account · No ads · Audio and trips never leave your phone
StopSure alert on the lock screen: Next stop, 23 St, with a Got it button StopSure banner at the top of the screen: Next stop: 23 St

Set it once. Ride as usual.

No route to plan, nothing to start each morning.

1

Pick your stations.

Home, work, anywhere you often go — up to five. Change trains somewhere and want a reminder there too? Add that station.

2

Turn StopSure on.

Once. It starts by itself when you're on a train — or, if you prefer, tap the banner when you board.

3

Your phone vibrates as your station comes up.

"Next stop", then "Arriving". It keeps going until you tap Got it, or get up and walk to the door.

StopSure home screen: StopSure on or off, your stations with their lines, two settings

Built for the ride.

Underground, on a crowded car, with your eyes closed.

Offline

No signal needed.

Everything runs on your phone, so it works deep underground. No GPS, no location permission.

Quiet

Vibration, not a siren.

The alert vibrates — even in silent mode. With earbuds in, a voice says the station; never on the speaker.

Persistent

It doesn't give up.

The vibration repeats until you answer. A tap from inside a pocket or bag doesn't count.

Calm

Only your stations.

One alert per station per ride, and nothing in between. Passing work on a Saturday? Tap Got it and that's that.

Visible

Shows over anything.

A banner on top of whatever you're doing — and a full card on the lock screen.

Simple

One switch.

No live map, no dashboards. Your stations, on or off, and two settings.

Where it works.

Subway and light rail, station by station, from each system's own timetable.

Your trips stay yours.

A stop alarm has to know where you're going. That's exactly why nothing leaves your phone.

✓ Listens only on trains. The microphone is used during a ride, for the station announcements. Audio is processed on your phone as it comes in — never saved, never uploaded.
✓ No account, no location. No sign-up, no GPS, no advertising ID.
✓ Anonymous counts only. A few usage counters help us improve the app. They say at most which city — never stations, lines, or the times you ride.
✓ Three plain permissions. Display over other apps (for the alert), the microphone (on trains), and — recommended — running in the background. No notification access, nothing that reads your screen.

Questions.

Does StopSure need a signal or GPS?
No. Everything runs on your phone, so it works underground with no signal. StopSure doesn't use GPS or ask for your location.
How does StopSure know where the train is?
It listens for the station announcements on the train and follows the timetable in between, so a missed announcement doesn't mean a missed stop.
Is StopSure recording me?
The microphone is used only while you're on a train. Audio is processed on your phone as it comes in and is never saved or uploaded. Audio and trips never leave your phone.
What if I fall asleep, or my phone is in my pocket?
The alert keeps vibrating until you tap Got it or get up and walk. A tap from inside a pocket or bag doesn't count, so a brush against your coat won't silence it.
What if I change trains?
Add the station where you change to your list. StopSure alerts you only at the stations you saved, so you choose which ones matter.
Which cities does StopSure work in?
New York (Subway and PATH), Chicago ('L'), Boston (MBTA subway), the San Francisco Bay Area (BART), Los Angeles (Metro Rail) and Philadelphia (SEPTA Metro).
What permissions does StopSure need?
Display over other apps, so the alert can show over whatever you're doing; the microphone, used only on trains; and, recommended, running in the background. No location, no notification access, no account.
Is StopSure free?
StopSure is free to download, with no ads and no account.

Close your eyes on the train.
StopSure watches the stops.

Coming soon to Google Play
No account · No ads · Audio and trips never leave your phone