Case Study: CollX Achieves 75% Retention with Stream Chat

Sports Card Marketplace CollX Sees 75% Retention Rate After Introducing In-App Chat Negotiation

CollX, a sports card marketplace and valuation app, wanted its in-app chat to do more than support community building. Using Stream Chat, the team saw that collectors were already negotiating buys and trades inside conversations, and they needed a faster, smoother way to turn those chats into sales.

Stream helped CollX build a custom Deals feature using its React Native SDK and flexible chat tools, allowing users to bundle cards, make offers, and counteroffer directly in chat. The feature drove over 1,500 sales within days of launch and helped CollX reach a 75% retention rate among chat users, showing the impact of Stream on engagement and conversions.

CollX

Ted Mann

Co-Founder