I built Kumbi because I kept abandoning expense apps after a few days.
The main thing I wanted to fix was logging friction, so you can type things like coffee 4.5, lunch 12 and let the app parse them for you.
Kumbi also has AI feedback with Friendly, Neutral, Blunt and Roast tones. Roast is the fun hook, but I m curious what actually makes an expense tracker stick for you long term.
Is it faster logging, better reports, reminders, personality, something else?