
Decode
Know a Treasure Hunt on sight
Every Treasure Hunt and Super Treasure Hunt gets a field guide: the logo to look for, the wheels, the paint, the card. A short checklist you can run through in the aisle.
- 🏆 TH
- ★ STH
Join the waitlist
Coming soon · iOS & Android
Spotter is the pocket field guide for die-cast hunters. Know a Treasure Hunt on sight, keep your whole garage in your pocket, then race the cars you own.


Decode
Every Treasure Hunt and Super Treasure Hunt gets a field guide: the logo to look for, the wheels, the paint, the card. A short checklist you can run through in the aisle.

Collect
Mark cars as owned, wanted or duplicate. Track carded, loose and custom, with quantities, notes and your own photos. See the collection by line and year, and export it whenever you like.

Verify
Each spec shows where it came from and how confident the match is. Official sheets are marked official, community reports are marked community, and rumors never pass as fact.

Play
Pick a car from your garage and take it round the Garage Grand Prix: three loops, two jumps and a chicane, against three rivals from your own collection.


Level up
Earn XP for scans and milestones, keep a daily streak, and unlock achievements. The leaderboard and public profile are opt-in; you stay private until you say otherwise.
Trailer
Every screen in it is the real app. The race is real gameplay.
Join the waitlist
Leave your email and we'll tell you the day Spotter is in the stores.
iPhone and Android. The same app, built from one codebase.
It goes on the launch list and nowhere else. You'll get one email when Spotter is available, and possibly an invitation to test it early. It isn't shared or sold.
From official assortment sheets and packaging where they exist, and from collector communities where they don't. Every field in the app shows which, with a confidence score, so you can judge it yourself.
No. Spotter is an independent tool made by collectors. It is not affiliated with, sponsored by or endorsed by Mattel.