CatchBack Cards – Custom mystery packs with cryptographic odds for Pokemon and Sports cards

Summary: CatchBack Cards is an iOS and web platform that enables collectors to create custom mystery packs with personalized card pools and cryptographically verified odds. Users can open digital packs, receive physical cards by mail, sell cards in a $1 marketplace, and get instant buyback offers via Venmo or PayPal.

What it does

It allows users to design mystery packs with chosen cards and risk levels, backed by cryptographic randomness proofs and open-source selection code. Collectors can buy packs, list cards for sale, and receive immediate buyout offers on pulled cards.

Who it's for

Collectors and traders of Pokémon and sports cards seeking transparent, customizable mystery packs and low-fee digital card transactions.

Why it matters

It addresses the lack of transparency, high fees, and fraud risks in traditional mystery packs and card marketplaces by providing verifiable odds and a low-cost, liquid trading platform.