If proprietary app is better and more robust I am willing to try it and assess it myself.
Thank you for the information. I am using Aegis and will not move away from it – I have no reason to. I am completely content with the features it provides. However, I want to look at Authenticator Pro to see how it works, what features it brings and in general, how good the application is. If I like what I see, I will be able to provide an alternative to Aegis when I suggest a TOTP application for someone. I hope Authenticator Pro is great, so I can recommend it with confidence.