No, totally separate company.Does 28degrees have a companion partnership with Amex ?
Following a different model to most - no annual fees etc but no points. The no charge FX transactions are its lure for us, also if you can be bothered to register it gives free hi-speed wifi in most airports globally & has free lounge access if flight is delayed more than 2 or 3 hours BUT must pre-register your flight. Cannot claim as it happens.