There are many free financial resources available that are supported on various platforms to help you get started:
Google Sheets – Create and edit online spreadsheets.
Numbers – Numbers lets you build beautiful spreadsheets on a Mac, iPad, or iPhone.
EveryDollar – Track your spending and show your money who’s in charge.
Mint – Reach your goals with personalized insights, custom budgets, and spend tracking.
YNAB – You Need a Budget is a budgeting app and proven method that helps you gain total control of your money and build wealth.
Networthify (Early Retirement Calculator) – Personal finance for savings extremists and early retirement savants.