The Social Market

Login Page
Home Page
Friends Page
Bet Summary Page
Bet Invite Page
Bets Made Page
Profile Page

Inspiration

We’ve all been in a group chat that slowly dies. Someone sends something funny, gets a couple reactions, then silence. Staying connected with friends, especially as life gets busy, is harder than it should be.

We realized that instead of just a generic messaging app, people need a reason to check in. This idea came from a recurring bet on a friend who would always show up late. We wanted to give that feeling a home.

What it does

The Social Market is a social prediction market for friend groups. It turns everyday moments into fun, competitive bets.

Users can:

Create bets and invite friends
Pick sides and stake coins
Win or lose based on real outcomes

Examples:

“Will Ryan skip the gym this week?”
“Over or under 3 cancellations?”

Each bet lives on a shared feed and contributes to a user’s win/loss record.

How we built it

We built a full-stack app focused on real-time interaction and secure transactions.

Frontend

React, TypeScript, Vite, Tailwind
Mobile-first UI with reusable components

Backend

Supabase (PostgreSQL, Auth, RLS)
Tables for users, bets, participants, transactions, and votes

Core Features

Bet creation, invites, and social feed
Wallet system with automatic payouts
Win/loss tracking + earnings graph

Settlement System

Standard voting
Weighted voting (trusted user influence)
Location-based resolution

Backend Logic

Triggers for wager handling
Stored procedures for payouts/refunds

Challenges we ran into

Designing fair and abuse-resistant voting systems
Managing complex relational data across bets and users
Handling edge cases like ties and refunds
Keeping real-time interactions smooth and consistent

Accomplishments that we're proud of

Built a complete full-stack product with real-time social interaction
Designed a unique multi-mode settlement system
Created a product centered around engagement, not just functionality

What we learned

We learned that great social products aren’t built around features, but around moments.

We initially focused too much on backend logic and not enough on what drives users to return. What mattered most was the experience: the tension of a bet, the anticipation of results, and the social dynamics between friends.

That shift changed how we approached the entire product.