Log expenses, attach receipts, and see monthly spend broken down by category — next to the revenue it took to cover it.
An expense tracker only works if someone actually uses it every week — so this one stays out of the way.
Record what was spent, on what, and when — in a few taps, not a form with twenty fields.
Keep the paper trail attached to the record itself, not in a shoebox.
See spend by category over time, so a cost creeping up doesn't go unnoticed.
Bring historical expenses in from a spreadsheet when you're getting set up.