I don't think people would want to enter their expenses manually. It is 2020, there are much better alternatives that you can explore. There are already apps that scrape data or gather spend data using SMS notifications etc.
It's for users who don't want to connect any of their bank accounts etc. to these kind of services. A possible feature is to import a csv and automatically add all the expenses.
Registration is needed so you can add your expenses to a personal account. But you only need to fill in a username, email is not required. We're also looking into adding a demo video on the landing page.
It's really easy to use and there's no commitment. You only need a username and you're ready to go. Perfect for people who want to start keeping track of their expenses.