The mobile version is especially useful
How to Create a Custom Google Form as an Expense Tracker for Personal Use – A Beginner's Guide
A spending tracker is essential if you’re budgeting or just want to know where your money is going. Google Forms is a free form builder that works great as a spending tracker.
Google Forms is highly customizable. You can use it as a survey, RSVP tool, contact form, product registration form, or any other question/answer form. However, you can also turn it into a custom expense tracker by asking questions related to your expenses.
With a Google Forms expense tracker, you can keep track of everything you want to know about a transaction. And because it works great on a phone, you can always have it with you.