In contrast to classical smartphone based tokens the privacyIDEA Authenticator also allows for a more secure rollout process as well a push token implementation.
You do not need to modify your network for privacyIDEA, it does not write to existing databases or user stores.
The Smartphone App "privacyIDEA Authenticator" turns your smartphone into an authentication device, which smoothlessly runs with the privacyIDEA backend.
privacyIDEA is a modular solution for two factor authentication especially with OTP tokens.
It only needs read access to your user stores like LDAP, Active Directory, SQL, SCIM-service or flat files.