Hi Rafly20,

What's your Horizon iOS Client version? From Horizon 8, Physical smart card is not supported on Horizon mobile client. Derived Credentials(Virtual smart card) feature supports mobile Client. So far, only Purebred Credential Provider is supported by Horizon Mobile Client Derived Credentials feature. Purebred can manage the mobile device, and push the P12 format cert/key to your device. Then Horizon Client uses the cert/key for smart card authentication. From the description, looks like your environment doesn't involve Purebred.