This application allows you to use OnlyKey's FIDO U2F and OTP two factor authentication features on your Android phone (min Marshmallow). In addition, the U2F functionality enables PGP support at https://apps.crp.to.
U2F two factor authentication and PGP functionality are only supported in the Chrome web browser.
Note: This application facilitates communication between the OnlyKey and your Android device. There is currently no user interface.
The app is available on Google Play here
OnlyKey Store - https://onlykey.io
OnlyKey Documentation - https://docs.crp.to
Support - https://forum.onlykey.io