For comparison, Foreflight does not require a digital signature.
Here is a link for a QR code to load a route into ForeFlight:
http://api.qrserver.com/v1/create-qr...=400x400&ecc=L
This is the URL if the route were added as a link: foreflightmobile://maps/search?q=APT@EHAM%20BERGI%20AMGOD%20L602%20SUPUR%2 0P1%20GIGUL%20N44%20UPNAL%20RIXUN%206600N01000W%20 7000N02000W%207200N04000W%207200N06000W%20NADMA%20 6700N08000W%206300N09000W%206000N09500W%205600N100 00W%205500N10100W%205000N10500W%20GGW%20BIL%20JAC% 20NORDK6%20APT@KSLC