Retailers determine whether they want to set up a points scheme on Yoyo, most of the time they do, except for a few franchised outlets.
You will earn 100 points per pound spent. Once you reach the corresponding number of points, you will be able use your points to claim a points reward and enjoy a free product.
To see which points rewards are available, go to the relevant retailer store in-app and check out 'Your Rewards'. You will see the number of points you have accrued per retailer and what you can exchange them for.