
Driver on 5th St
Hey, I'm blocked in on 5th Street. Can you move when you get a chance?
Someone blocked you in
Message the driver blocking you and get on with your day. No waiting, no angry notes.

Trace is the car network for every car owner. Find your car in any garage with Trace Locate. Reach any car owner on Trace privately, by their Trace Tag or license plate. You can even make an offer on any car on Trace Market, for sale or not.
Whatever you drive, Trace connects you to your car, to the people parked around it and to everyone who will ever own it.
Never lose your car again.
Park and walk away. Trace saves the exact row and spot on its own, then walks you back with a live radar or arrows on the ground in AR.

Reach any driver
A QR code for your car. Anyone can scan it to message you about it, without ever seeing your number.
Learn moreMake an offer on any car
Even one that isn't for sale. Negotiate in a Deal Room with counters, deadlines and questions.
Learn moreYour car's service history
Records, receipts and maintenance reminders, handed to the next owner when you sell.
Learn moreEvery car has a price.
Browse cars for sale, or every car on Trace. The one you've always wanted is already here, and its owner is one offer away.


Every owner, on the record
See who has owned a car before you and who's driving it now. Sale prices are never shown.
Learn moreNever lose your car again. Trace Locate uses advanced motion intelligence to automatically save where you parked — no buttons, no Bluetooth pairing, no setup.
A simulation of AR Mode in a parking garage: arrows on the floor, a pin over the car, and its floor and spot.
Trace detects when you're driving using your phone's motion sensors. Works with every car — Tesla, BMW, Honda, rentals.
The moment you stop driving and start walking, Trace captures your GPS location with pinpoint accuracy.
After confirming you've left the car, your spot is saved and you get a push notification. Completely hands-free.
Open Trace Locate to see a live radar guiding you back, changing from red to green as you get closer. Or switch to AR Mode and follow the arrows on the ground.
Built for giant lots and underground garages, where one row looks like every other.
Hold up your phone and Trace finds the real floor, lays a path of arrows on the ground and pins your car above it, with its parking floor, spot number, how long ago you parked and the photo you took of the spot.
In a parking structure, Trace notes which floor you parked on, so you head for the right level the first time.
No bars in the garage? Your saved spot, floor, radar and AR all work offline, along with your garage and messages.

Four products for every stage of owning a car, from the first offer to the day you hand over the keys.
Browse cars listed for sale, or every car on Trace. Watch the ones you love and see how many people are watching yours.


Seen the car you've always wanted? Send its owner a Serious Offer. A small fee shows you mean it, so owners actually answer.

Keep every service record, repair and receipt with the car. Snap a photo of the invoice and it's filed.

Every car on Trace keeps a record of its owners, so buyers know where it's been and who's driving it now.

A scannable identity for every car. Print it, place it on your dash, and let anyone reach you in seconds.

Every vehicle gets its own QR code that links directly to you.
Save to photos, AirDrop, or print directly from the app.
Prints at 3" × 3" — perfect for your dash, visor, or windshield.
No personal info on the tag. Scanners only see a message form.
Scan their Trace Tag or search their plate. The owner gets your message, and nobody shares a phone number.
Start free. Upgrade when you're ready for the full experience.
Everything you need to get started with Trace.
The full Trace experience. Unlock everything.
Cancel anytime. No commitment. Less than the cost of a parking ticket.
One fee per offer covers the whole negotiation in the Deal Room. Listing your own car is always free (up to 3 at a time).
Three steps to join the car network.
Add your car in seconds and it joins the Trace network, with its own Trace Tag, Binder and Owner History.
Trace Locate saves your spot every time you park, and your Trace Tag on the dash lets anyone reach you about your car.
Walk back to your car in AR, log a service in the Binder, list it on Trace Market or make an offer on the car you've always wanted.

Download Trace free on the App Store or Google Play and join the car network built for every car owner.