Native authentication experience with failover

A system, comprising:

• at least one computing device;
• and
• a network service executable in the at least one computing device, wherein when executed the network service causes the at least one computing device to at least:
• authenticate a first application executed in a computing device in a first instance using at least one authentication factor received via a platform-specific application programming interface that is native to the computing device;
• and
• after a change to how authentication is performed by the network service, authenticate the first application in a second instance via code-based linking with a second application that is authenticated.

A method, comprising:

• implementing, via at least one of one or more computing devices, a change in how authentication is performed by the one or more computing devices;
• receiving, via at least one of one or more computing devices, an authentication request from a first application;
• determining, via at least one of the one or more computing devices, that the authentication request is not supported;
• providing, via at least one of the one or more computing devices, a code to the first application;
• and
• authenticating, via at least one of the one or more computing devices, the first application in response to receiving the code from a second application that is authenticated.