I dunno if it's the latest update or what, but this works flawlessly now. (used to take a few tries and up to a few minutes to get my key to register)
Works well! Put the authentication math magic seeds onto two keys months ago. Used them to authenticate a login today successfully, because phone was wiped and lost the authentication seed.
They don't care about changelog in Google Play store so I can only give 3/5.
Took me a while to figure out how to position the neo for nfc detection to work, and still have ocassional hiccups with reading, but happy with it so far.
Drives me a little crazy. For some reason, it loses primary association with the NFC regularly (i.e., the web browser pops up uselessly to the yubico web page when you try to use the yubikey). To get it to stop doing that, I have to uninstall this app and reinstall and it seems to reassert it self. Super annoying.
Horribly unreliable. Originally I thought it was my Nexus 5. Then got a 5x same thing. Then I thought it was my yubikey neo, got another one. No, this app just sucks. Strange as the clip ap works fine. This one gives me communication errors more often then codes.
* Version 1.2.1 released 2017-05-05
** Better handling of errors.
** No longer require NFC to be enabled when available.
* Version 1.2.0 released 2017-04-26
** Embedded QR scanner to avoid relying on third party app.
** Experimental USB support, enabling use with YubiKey 4C or other YubiKeys via OTG cable.
* Version 1.1.0 released 2016-09-09
** Retain codes on screen rotate.
Two Factor Authentication by Spriv is Automatic, fast, cheap and highly accurate
Keepass2Android is a password manager compatible with KeePass 2 (.kdbx) files