I definitely would not call myself a "professional biologist" as that would make a whole room burst with laughs, lol. So, you're right on that.
But I do work as a researcher, publish some interesting papers from time to time and, yes, I think I'm also an "app developer", in the sense that I've made some apps?
These kind of arguments you make really come across as quite infantile, to be honest. I'm going to have to stop engaging with you because no substantial value is added to the conversation while you already crossed the line to personal attacks, several times, even after you've been told about it and pointed to this site's rules. Find somebody else to engage with your tantrums, I'm out.