The cash app card is just like a debit card from the cash app. You don't have a need to open again and again on your mobile to make a transaction. If you have a cash app card then you can just swipe it on any store. If you want to use the cash app card so you need to Login into Cash App. If you can't login then you can visit our website. It is just a simple process to do Cash App Login Online. If you are not able to do it . Then you contact us and we provide you the proper solution to the problem.