I've been looking for a personal finance app for a long time. I don't want a Saas that charges me monthly and can shutdown at anytime. Most other homebrewed apps are incomplete or abandoned. Of all things I ended up paying for an Excel sheet to track it all - https://cspersonalfinance.io/

This tracks all my cashflows, investments, net worth etc, and since it's in excel there's no risk of it disappearing after 10 years