SignaCar

Someone left their lights on. A car is blocking your exit. You notice a flat tyre. How do you reach the driver? With SignaCar, just enter their license plate number and send an instant alert — they'll get a push notification on their phone within seconds. HOW IT WORKS Enter the driver's license plate number Pick from a list of common alerts (lights on, flat tyre, blocking exit, and more) The driver receives an instant push notification That's it. No phone number needed. No note on the windshield. No waiting around. KEY FEATURES Instant push notifications — alerts arrive in seconds Anonymous by default — your identity is never revealed No account needed to send — anyone can alert a registered driver, even from the web Two-way messaging — registered drivers can reply and start a private conversation Karma system — build your reputation as a helpful driver in the community Plate scanner — use your camera to scan a license plate instead of typing it Ghost alerts — if the driver isn't on SignaCar yet, your alert will be waiting for them when they sign up Block & report — stay in control of who can reach you COMMON ALERTS Parking: blocking my exit, parked on my spot, your vehicle is being towed Vehicle issues: lights on, flat tyre, trunk open, window left open, door not closed Safety: you dropped something General: thank you! BUILT FOR DRIVERS, BY DRIVERS SignaCar bridges the gap between drivers who have no way to communicate. Whether you're helping a stranger or reaching someone blocking your driveway — it takes two seconds and costs nothing. Your plate number is your identifier. Register it once and you're reachable by any driver, anywhere. PRIVACY FIRST Alerts are anonymous by default No location tracking No ads You control who can message you Block any plate instantly Delete your account and all data at any time Free to use. Free to send.