What does tapping your Plussa card (contactless) in MobilePay mean?

When you add your Plussa card to the MobilePay app on your iPhone, you can scan your Plussa card at the store payment terminal just by holding your phone close to the terminal. From now on, you don’t need to show the barcode on your Plussa card – you can scan the card faster by opening your Plussa card in MobilePay.