You will hate me for this. Any spread sheet app, google Sheets , Excel, or open-source. Spend time doing it yourself because focusing on your finances matters more than just getting an automated solution that you can simply ignore or not understand completely. Don’t worry too much about it. Make a tab for income, a tab for recurring expenses, and a tab for all your transactions. Take a year or two, building it up. It will take time to build a good history and for you to refine your plan better(easier when you are focusing on creating the spreadsheet vs. taking a premade solution). Also I suggest thinking long term as much as possible, like a yearly plan instead of monthly. If you get lucky and your life is stable and safe, you will have a nest egg building, and it will make sticking to a yearly plan much easier as you won’t need to plan out around paychecks as your yearly income is usually going to stay the same.

Spreadsheets are cloud store able and editable, export features galore, and powerful stats with custom data manipulation or presentation. There is simply nothing better than making your own spreadsheet. You could always start with a premade spreadsheet that does not have too much fancy bs. Take time doing it, I promise you will be happier than stumbling around, not knowing what is going on or what your future holds.