Persistent SSO with OnPrem ADFS for smartphones

Tobias Heeb 1 Reputation point

We have an OnPrem ADFS setup for a web application.
The web application is targeting windows 10 clients (kerberos) and smartphones (forms authentication).
Smartphones could connect from the internal network or the internet.

The Problem is that the smartphone users have to authenticate every time they use the web application.
I read something about persistent SSO. This should persist the authentication cookie for several days.
That's what we want.
How can we implement this?

Active Directory Federation Services
Active Directory Federation Services
An Active Directory technology that provides single-sign-on functionality by securely sharing digital identity and entitlement rights across security and enterprise boundaries.
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