Force Smart Card per user - exclude certain hosts

In AD Users and Computer we enabled the option 'Smart Card is required for interactive login'.  This forces Smart Card login via that AD user account... That way no matter what computer that user logs in on they are forced to use a Smart Card, however, this causes a problem.  We have a few mobile apps that use AD authentication.  When we try to log into these apps from our iOS / iPhone we are unable to do so.. This is because it's wanting a Smart Card...  What is the work around?  The only GPO that force Smart Card is computer based.. We don't want to force all users on all computers to use Smart Cards.. So... I don't see a work around unless the mobile apps support some type of cert based SSO?  Even then I don't think it will work for AD is looking for a Smart Card.
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btanExec ConsultantCommented:
Frankly, you may have answered your query already.
Your setting is a user specific Smartcard login so unless you have two 2 accounts otherwise as you mentioned the apps to support certificate login. I would not think the latter need the smartcard as long as the certificate can be enrolled and issued to the mobile device and the backend AD has the UPN mapping done for that mobile user (see this).

Another way is the two accounts - one account with "smart card required" to all other computers. A second that logon without such SC restriction. The latter will likely need to be"Deny log on locally"  into the computers (not the mobile device). Can get complicated though.

Just to share actually there is a past blog discussing the depth of SCL and a PS script for surfacing all user under SCL enforcement.

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btanExec ConsultantCommented:
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