Can you afford this today?

Runway is a zero-dependency financial engine that uses Monte Carlo simulations to forecast your solvency. No budgeting. No judgment.

Your transaction history is converted into a daily spend vector. We run 2,000 simulations per render.

const forecast = calculateForecast(
  balance, 
  transactions, 
  buffer, 
  Date.now()
);

Runway rejects the SaaS dogma. Your financial ledger lives in IndexedDB on your device. The server is only used for encrypted backup.

Inject hypothetical spend events into the state tree. The engine re-computes your zero-date instantly without touching real data.