ZET Radar

Zlatko Miletić

About this app

ZET Radar puts Zagreb’s entire tram & bus fleet on your wrist. It is your best companion for public transport. Track any vehicle live in realtime.

ZET Radar works as a standalone app and is available on devices that support Wear OS.

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KEY FEATURES
• Route list – every active tram or bus, automatically sorted by how close it is to you.
 – Pull-to-refresh, or simply reopen the app and the list updates in a second or two.
 – Tap the search icon to filter by route number (e.g. 6, 150…).

• Live map – follow one vehicle in real time.
 – Position refreshes about every 10 seconds via the official ZET GTFS-Realtime feed.
– Locate bus/tram stop stations.
 – Vibration + on-screen alert when the vehicle enters proximity radius.
 – Runs as a low-priority foreground service so you can glance away without losing the track.

• Smart alerts – let the watch notify you when the tram is nearby (no more staring at a timetable which btw we don't have)

• Battery-friendly – GPS is used only when the map is open or an alert is armed. Background polling is network-only.

• Privacy first – location never leaves your watch; no analytics, ads, or accounts.

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DATA SOURCE
Vehicle locations come from ZET’s public GTFS-Realtime endpoint (https://www.zet.hr/gtfs-rt-protobuf).
Feed is currently marked “for testing purposes only” and may occasionally be unavailable or delayed.

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PERMISSIONS
• Notifications – required for proximity alerts and foreground tracking indicator.
• Location – needed to sort vehicles by distance and to know when a tracked vehicle is nearby.
The app remains usable if you deny either permission, but some functions will be limited.

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LICENCES
ZET data © Zagrebački električni tramvaj – Open Licence, Republic of Croatia.

What’s new

Feature:
* Live Map:
- 'My Location' button now has toggle behavior. When ON (yellow state) then user location is in focus, when OFF (gray state) vehicle location is in focus and map continues to follow vehicle location.