Hey Jerome! Nice utility, but you may want to point people to andOTP (at least for Android devices), it's maintained (FreeOTP is unmaintained, I think) and much more featureful:
https://play.google.com/store/apps/details?id=org.shadowice....
https://play.google.com/store/apps/details?id=org.shadowice....
https://github.com/inversoft/prime-two-factor/tree/master/we...