Casha is a minimalist expense tracker built for iPhone. You log purchases as you go, and the app surfaces patterns in your spending — categories you overspend in, days you splurge, trends over time. The interface is stripped down on purpose: no budgeting frameworks to configure, no bank sync to wrestle with. It's aimed at people who want a quick, frictionless way to stay aware of where their money goes without committing to a full personal finance app.