To receive bitcoin in the Blockstream app, you'll need to generate an address and share it with the sender. To send, you'll need the recipient's address and enough funds in your wallet to cover the amount plus the network fee.
Receive bitcoin
1.
Log in to the Blockstream app and tap Transact.
2.
Select Receive from the available actions.
3.
Share the address with the sender and wait for them to broadcast the transaction. You will see your new balance appear on the home screen once they have successfully done so.
Send bitcoin
1.
Log in to the Blockstream app and tap Transact.
2.
Select Send from the available actions.
3.
Paste the address of the recipient or tap Scan QR Code, then select Next.
4.
Enter the amount of bitcoin you would like to send, then choose Next. Select Change speed to adjust the fee you will pay depending on the transaction's urgency. Please note that this fee is paid to bitcoin miners, not Blockstream.
5.
Confirm that the recipient address, amount, and network fee are as you intended, then Slide to Send to broadcast your transaction to the network.