Zettle

Demo

About

The problem it solves **Zettle is a zero-settlement**, cross-chain expense-splitting app—think Splitwise. If someone logs an expense on the Avalanche network, you can view and settle it on Sepolia, where your native funds reside. **Create groups easily using your Farcaster following list**, add shared expenses in a few clicks, and clear debts across chains instantly—making on-chain settlement seamless and simple.  **1. Create Group** - User connects wallet. - Select or import friends via Farcaster followers. - Group created with members’ wallet addresses + names. **2. Add Expense** - User inputs: - Expense name (e.g., “Dinner @ Goa”) - Total amount - Select members to split with - Network to initiate payment (e.g., Avalanche) - The app automatically: - Splits the amount - Assigns equal (or custom) debt shares to members - Creates DEPOSIT transactions for each member - Creates a CLAIM transaction for the payer **3. Payback Flow** - Each debtor sees pending transactions in their UI. - They can pay back from any chain (e.g., from Sepolia even if the debt was on Avalanche). - Using CCIP, funds are bridged and payment confirmed. **4. Debt Resolution & Claim** - Once all DEPOSIT transactions are marked completed: - The creator (payer) can claim the amount on their preferred chain - Zettle settles debts on-chain and updates group stats  Mobile View      

How it's made

Challenges we ran into ⚠️ Challenges I Faced: Difficulty accessing Avalanche faucet tokens Long finality times for cross-chain settlements via CCIP Insufficient funds on Ethereum and across all Sepolia testnets