The words, in plain language

The vocabulary of splitting and settling on-chain.

The money

What you actually send and receive.

USDC: USDC is a fully-reserved US-dollar stablecoin. One USDC is redeemable for one US dollar, so it does not swing in value like other crypto assets. Spliz settles in USDC.
Stablecoin: A stablecoin is a digital token pegged to a stable asset, usually the US dollar. Its value is designed to stay flat, which makes it suitable for paying people back rather than speculating.
Base: Base is an Ethereum Layer 2 network with low transaction costs, built by Coinbase. Spliz settles on Base, which is why a settlement clears in seconds for cents.

What happens when a group settles.

Atomic settlement: Atomic settlement clears every balance in a group in a single transaction. All balances move together, or none do, so there is never a state where some people are paid and others are still owed.
Settlement vs tracking: Settlement is the act of actually moving the money to clear a balance. Tracking only records who owes what. Spliz settles, it does not stop at a running tally.
Relayer: A relayer is the service that submits the settlement transaction and pays the network gas. Because Spliz runs a relayer, users never need to hold the network's native token to settle.
Gas: Gas is the network fee paid to process a transaction on Base. On Spliz you never pay gas yourself: the relayer covers it, so you only ever sign.
Guest mode: Guest mode lets someone join a Spliz and take part without creating an account. They sign in later, when it is time to settle, and their place in the group carries over.

Why Spliz never holds your balance.

Non-custodial: Non-custodial means the service never holds your money. Funds stay in your own wallet, and nothing moves without your signature. Spliz cannot freeze, pool, or move a balance on its own.
EIP-712 signature: EIP-712 is an Ethereum standard for human-readable typed-data signatures. Spliz uses it so every member approves the exact balances before anything settles. It is a signed consensus, not one person deciding for the group.
EIP-2612 permit: An EIP-2612 permit is a signature that authorizes a USDC transfer without a separate on-chain approval step. It removes the extra transaction users normally pay for before a token can move.

Settle your next group tab in one signature.