Private beta on Android

Trade with people you've never met. Without the guesswork.

Grevvo locks a photo of your item to a ledger, with an ID and a QR code. Buyers check it in seconds: who took it, when, and the seller's track record.

The problem

Every trade with a stranger starts with a leap of faith.

Photos can be copied from anywhere. Profiles can be made in a minute. And once the money is sent, it is gone.

"Is this their card, or a picture they found online?"
"Do they really have it in hand right now?"
"Have they ever actually shipped anything?"

How it works

Proof, in three steps.

The seller does one thing differently: they take the listing photo in Grevvo. Everything else follows from that.

01

Lock it

Take the photo in the Grevvo camera. It is sealed on the ledger with its own ID and a QR code, and stamped with your level.

02

Check it

A buyer scans the QR code or opens the link in Grevvo. They see who locked the photo, when, their level, reviews and anything worth a second look.

03

Trade it

Agree the deal in the chat, add tracking when you ship, then review each other. Every finished trade builds your level.

For buyers

Check any photo before you pay.

Scan the code on the photo, or open the link from the listing. Anyone can see the item is locked on Grevvo; in the app you see the rest.

  • Who locked it, and when. The photo was taken in the Grevvo camera, not uploaded from somewhere else.
  • Their level and reviews. Built from real trades and reviews both sides confirm.
  • Linked accounts. See which of their Facebook, Discord or other profiles are verified.
  • Anything to consider. A quiet heads-up when something about a photo or account deserves a closer look.

Levels

Trust you earn, not buy.

Every trader starts as New and moves up through finished trades, confirmed reviews and verified accounts. Buyers see the level on every photo you lock.

New
Bronze
Silver
Gold
Platinum
Diamond

Be one of the first 50 testers.

We want traders who actually ship items. You get Grevvo free for the whole beta, and you help decide what gets built next.

Save my spot
  • Free for the whole beta, on Android
  • A full year of Premium once we launch
  • A private Discord with the developers

Questions

Good to know

What happens after I sign up?

We email you when your spot opens, with how to get the app and join the Discord. After that, one more when Grevvo launches. No spam: two emails, tops.

Does it work on iPhone?

Not yet. The beta is Android only. iOS is on the roadmap, and you can still sign up now to hear when it is ready.

What does it cost?

Testers use Grevvo free for the whole beta and get a year of Premium once we launch. After that there is a free plan with a number of locked photos each month, and Premium for people who list a lot.

What can I trade with it?

Anything you can hold up to a camera: trading cards, sneakers, watches, collectibles and more. Grevvo does not sell or ship anything itself. You trade wherever you already do, and Grevvo adds the proof.

What do you do with my email?

We use it to invite you to the beta and tell you when we launch, nothing else. You can ask us to remove it at any time. Read more in the privacy policy.