Hello !
I've been trying to use Tap to Pay as a merchant on a Pixel 6, with apps that are usually provided by payment providers (such as Mollie, Quonto, ...). The principle is that you can use your phone as a POS, which is great because it allows you to accept card payments without expensive gear or subscriptions. In my case, the Mollie Terminal app has installed and made calls to the Google Play Integrity API, but the payment could not initiate properly. From the logs I see occurences of this :
RNFBAppCheck: RNFB: Unknown error while fetching AppCheck token Za.l: Error returned from API. code: 403 body: App attestation failed.
Has anyone been able to setup such apps ? Could it be possible that GrapheneOS supports such POS apps ? For now i'm using an old Samsung as a POS.
From the mollie requirements page :
Operating System: Android 10.0 or higher.
Security: An Android Security patch that is less than 12 months old.
Processor: 64-bit ARM v8 processor (or greater).
Hardware: Must be a single-screen device.
NFC: Built-in Near Field Communication (android.hardware.nfc) for contactless tapping.
Google Services: Google Mobile Services (GMS) must be fully certified and enabled on the device.
PS : I've been using GrapheneOS for a couple of years now, and I cannot thank the community and developers enough for the amount of work put into this project (especially with the Pixel 10). <3