Tokenizator

Simple enough and works great for me.

Very nice app for totp testing - just drag and drop qr and everything works.

Doesn't open after first few successful executions

Great for when you need an authenticator setup on the browser for less secure sites/uses. Of course you always want to have an authentication on another device but still very useful plus its Open Source.

An excellently simple authenticator app. I'm not sure how secure/malicious it is though, but it's a good back-up. Would be nice if it took a QR code...