Today you have to use a PIN code to pay if the amount is over 250 SEK, are you developing a solution to verify your payment by using a fingerprint scanner on your phone instead? That would make your app even better, faster and more convenient!
And while you're at it, could you add the possibility to identify you when paying at Willys via the fingerprint scanner instead of using the WIllys card or drivers license? So annoying to have to get a card out, the phone is already in the hand!
By using Fingerprint Cards' fingerprint sensors it's even more secure than PIN codes. It has liveness detection so it can't be spoofed with silicone. And it's even quicker than Apple TouchID. Once you've tried you don't ever wanna go back. I own a Huawei Honor8 and it can also be used to blip my purchases. The progress Fingerprint Cards has made is amazing. They also offer iris recogniton after acquiring DeltaID from California.
@Alexander: I know that the newer, high-resolution sensors with lifeness detection are becoming more and more the standard. However, there are still a lot of older devices with less capable finger print sensors around which are suitable solely for user convenience. Furthermore, and this is VERY important, the android api can not query the security features of the sensor used. In other words, there is no way to limit the use of fingerprint authentication to devices providing a suitably advanced sensor. Therefore, until and unless somebody, most likely Google, either exposes the capabilities of the sensor to the applications via the api or imposes a minimum requirement on fingerprint sensors and enforces it, I'd stick with my original statement that fingerprint authentication, at least at the moment, isn't a good choice for critical applications such as payment.