i havent tried this app out yet, im actually quite broke, but quicken makes top notch software and this app should help with budgeting, may it be 1000$ or 20k.

hyperlink at https://www.quicken.com/lp/ppc/brand-simplifi/, and yeah, works on mobile devices via app and through the web

now a physical, binary app would be awesome, but this is like 3$ a month and yeah, covers budgeting according to its info. you can hook it up to your bank accounts via bank login, ie wells fargo, bank of america, possible credit card companies, and you can see how much your spending, where it goes, provides graphs and possibly provides a projected budget

the web interface takes some time to get used ot, you can use gnucash but thats open source software, but this app covers most of hte budgeting aspects you'll probably need

heres a direct pane into that website if you dont want to click:

happy banking!
unidef