CardVault

CardVault is a mobile app that helps riders manage multiple public transit fare cards (and mobile wallets) across cities and agencies. It stores card details, reminds you when balances are low or passes are expiring, and logs top-ups so you can see where your money goes. The realistic angle: it won’t magically read every card in every city—many agencies block third-party access. Instead, CardVault focuses on what can be done reliably: receipt/email parsing for reload confirmations, optional manual balance entries with smart reminders, and direct integrations only where agencies provide APIs or web portals that allow it. For frequent travelers, families managing multiple cards, and commuters juggling commuter rail + metro, it reduces “oops, I’m out of fare” moments and makes reimbursements easier. It’s a traditional app with light AI for parsing receipts and categorizing spend.