This is a big step forward for Cash app -- and the financial services sector in general. As long as you don't need to deposit a cheque or wire a transfer (and who in this day and age does?) it's now entirely possible to rely on the app in lieu of a traditional bank account, which is helpful for younger users entering their first job, those in underserved areas, or anyone reluctant to pay fees at more mainstream institutions. It's not so straightforward for Square itself, though, as it doesn't yet have its own bank charter, so it's had to figure out quite a few workarounds to adhere to legislation. But as more and more fintech companies pioneer these kinds of services and see large-scale take-up, it might not be too long before at least some of the rules are reformed.