Fall asleep on the KRL. Alight will tell you when to get off.
Select your destination station, start the journey, and put your phone away. Alight reminds you before your stop, and again when you arrive.

No account. Your location stays on your phone. Works offline.
Alight works locally on your device. There is nothing to sign up for, and we never ask for your name, email, or telephone number.
Your coordinates are queried only while a journey you started is running, processed directly on your hardware. It is never transmitted to our servers or used for ad targeting.
Once station geometry is cached, active journeys function reliably without an internet connection, even with the screen locked in your pocket.
What Alight does
Reminder before your stop
Choose one or two stations ahead. One is the default setting.
Arrival notification
Notifies you when your train pulls in, then automatically terminates location tracking.
Runs in your pocket
Runs reliably with the screen locked or while you use other apps.
Your kind of alert
Choose Senyap (silent), Getar (vibrate), or Suara dan getar (sound and vibrate). Includes a test alert.
Station discovery
Browse stations by line, search by name, or locate on the interactive map.
Clear transfer routes
If your journey requires changing trains, Alight highlights where to transfer.
Home-screen widget
Monitor destination and remaining station progress at a glance without unlocking.
Approaching station alerts
When your train approaches your target stop, Alight triggers your selected alert mode so you can gather your belongings calmly without checking the station signs every minute.

Questions
Is Alight free?
Yes. Alight is free and supported by non-intrusive ads. Ads never appear on the active-journey screen. A brief ad may show when initiating a journey.
Do I need internet?
Only to initially download or update station data, and to load map tiles. The journey itself, from departure to arrival reminder, works completely offline.
Why does Alight ask for background location permission?
So the reminder can trigger while your screen is off in your pocket. Alight only queries GPS while a user-started journey is active, with an ongoing notification. Tracking terminates upon arrival.
Does Alight send my location anywhere?
No. Your coordinates are processed entirely on-device and are never uploaded to any server or shared with advertisers.
Will it drain my battery?
Alight engages GPS strictly while a journey runs and stops immediately upon reaching your station. The app includes vendor-specific background optimization tips.
Is there an iOS version?
Not currently. Alight is focused on Android.
Does it work for MRT, LRT, or TransJakarta?
Alight is built specifically for KRL Commuter Line Jabodetabek today.
Is the reminder guaranteed?
Alight is an assistive reminder, not a safety-critical system. Heavy signal loss, device battery savers, and underground tunnels may affect GPS accuracy. Keep an eye on your journey.
Station and route data © OpenStreetMap contributors, available under the Open Database License (ODbL).
Map view: OpenFreeMap © OpenMapTiles, data from OpenStreetMap.