CashApp
Cash App
Download and install the Cash App on your phone
Search for and download Cash App from your device's app store. Once it's installed, open the app and follow the prompts to set up your account. If all goes according to plan, this first step should be quick and painless.
Verify your identity (for security)
Cash App must verify your identity for security and legal compliance. To do this, provide your full name, date of birth, and the last four digits of your Social Security number. It usually takes just a few minutes.
Link a bank account or debit card to Cash App
Connect a bank account or debit card so you can move money into your Cash App balance. This makes it easy to transfer funds in and out, which matters if you're buying Bitcoin or cashing out.
Find the Bitcoin section
On Cash App, tap the money tab on the home screen and then choose the Bitcoin option.
Choose how much Bitcoin you want to buy
Tap Buy and choose from the available amounts. If those options don't fit your budget, tap the three dots and enter a custom amount. The app may ask basic identity questions such as your legal name and date of birth.
Confirm your purchase
Before you lock it in, review the details and any fees, then hit confirm. Once you do, your Bitcoin should appear in your Cash App balance right away.
Withdraw the Bitcoin
Withdraw the cryptocurrency you purchased to the Bitcoin address shown at the bottom of your invoice.