You can use it to give and receive bitcoin off chain, if you dont trust it you can immediately redeem to another wallet and it can be used that way up to ten times. So it is very similar to opendime but it is not a one time redeem and you can tap to verify on iphone instead of needing a usb drive, After hyperbtc i think we will see a lot of similar items too satscards, maybe even with standard denominations similar to cash we use today. Satscards or perhaps something derivative of satscards are going to be very helpful and ubiquitous in the future.