User Experience Innovation
The core technical innovation is making blockchain invisible to users. A mainstream user experiences Hunch as a simple mobile app, unaware of the underlying infrastructure.
Onboarding Flow
| Step | User Action | What Happens Behind the Scenes |
|---|
| 1 | Tap “Sign in with Twitter” | Privy authenticates via OAuth |
| 2 | (Automatic) | Privy creates embedded wallet |
| 3 | (Automatic) | ZeroDev deploys smart account |
| 4 | (Automatic) | Backend mints 1,000 $HUNCH to account |
| 5 | Tap “Enable Quick Bets” | Creates session key (one-time approval) |
| 6 | Start swiping on markets | All bets execute via session key (no popups) |
Total time from app open to first bet: Under 30 seconds.
Gasless Transactions
Users never pay gas fees. The platform sponsors all transactions via ZeroDev’s paymaster infrastructure.
| Perspective | Reality |
|---|
| User Experience | Tap to bet, instant confirmation |
| Technical Reality | Platform pays ~$0.001 per transaction on Base |
| Economics | Easily covered by 1.5% platform spread |
Session Keys
The key innovation enabling frictionless betting:
One-Time Approval
User approves once with a single signature on first use
Scoped Permissions
Session key can only call betting functions
Time-Limited
Expires after 7 days for security
Zero Interaction
Every subsequent bet requires no user interaction
Wallet Architecture
Users have two addresses (invisible to them):
| Wallet Type | Purpose | Created By |
|---|
| Embedded Wallet | Signer / authenticator | Privy |
| Smart Account | Holds funds, executes bets | ZeroDev |
Always send tokens to the Smart Account Address, not the embedded wallet.
Login Persistence
Session key state persists across logouts:
1. User logs in
2. Backend checks: GET /api/users/:userId/session-key
3. If approved and not expired:
→ Restore session key from stored address
→ User can bet immediately
4. If not approved or expired:
→ Show one-time approval modal
→ Save new session key state
Comparison
| Action | Traditional Crypto | Hunch |
|---|
| Create account | Install wallet extension, write seed phrase | Tap “Sign in with Twitter” |
| Fund account | Buy crypto on exchange, transfer to wallet | Automatic 1,000 $HUNCH on signup |
| Make transaction | Approve popup, pay gas, wait | Swipe and done |
| Session management | Connect wallet each time | Automatic via session keys |
