One free account, five tabs. Here is what lives where, so the first week is not a hunt.

Go to app.cowstail.app/signup or install the app from the App Store or Google Play. Email and password, or continue with Google or Apple. No card, and the Solo plan stays free.
The day's three shortcuts sit at the top: Make an invoice (same client and rate as last time), Log today's hours, and Scan a ticket or receipt. Under them, what needs attention: a LOLER inspection due, an invoice overdue, a ticket about to expire. Under that, the tax year so far.
More on Home holds Tickets, Logbook, Clients and Quotes. The big New button makes anything from anywhere; Ask answers a question in plain words.
Home asks once. Say yes and the app pings you when a booking lands, a client pays or a ticket is about to expire, and the moment a job fits you.
Related: set your day rate, add your first client, your first invoice.