Apex Flex FIDO Setup - Going Passwordless

So I started playing with my implant since the swelling went down and it’s not hurting. I was testing out the applets installs again and still can’t install fido2…it at least tries now but still failes saying not enough space even when nothing is installed. Since on iPhone and don’t have apex manager app yet I started playing with the yubikey Authenticator which works great for otp codes. Any other substitute apps that I can play with for now? I also have a flipper can that be used to write to these in anyway?