If you integrate TypingDNA Verify and the end-user tries to authenticate from a phone, it will go by default on SMS (the fall-back option we added using Twillo).

Alternatively, you can use TypingDNA's API. This will work on any device type (smartphones, computers, tablets, etc.).

In summary, TypingDNA Verify works on phones as well, but it will just go directly to SMS rather than typing biometrics.

I hope this answers your question, Jörn