The app-store handling (QR code on desktop, app to right app store on phone) is probably supposed to be clever, but browsing on desktop it just felt annoying. QR codes are fine, but at least give me a small direct link below the code. I don't want to take out my phone to figure out if it's supported, I want to click on a link that takes me to the app store so I can have a look at the page, the reviews, and if I'm logged in click install to trigger my phone to do its thing (not sure if the last part also works on apple or is only a google thing)