maybe a OCR feature to capture receipts - its data entry heavy currently - meaning i have to check bank account(s) to see funds credited or debited and then log them into the personal finance app... I mean that is unless you've got a hidden v2 feature coming up, or integrations to banking providers that automatically fetch balances or even refunds/chargebacks in process (because you have receivables)..
all in all - if the objective is to have an expense and income tracking / personal finance tracking app - i believe you've achieved it (its a crowded space - so not sure what is the product moat you will have to encourage downloads. Is it no-ads so you create stickiness and slowly build features? free apps are a nightmare with all the ads. Even if its serverless, people all still make ads - just to make the few bucks).
Might be worth considering a recurring expense account - such expenses are always carried forward every month... e.g. gym membership / streaming subscriptions / mobile phone subscriptions etc....
thanks for testing Kmic btw :) you can open your music app and let Kmic run in the background ;) haha no ads there. i wanted to create stickiness. Will continue building more features if there is some level of interest...