I do marketing for a living. I can read code and I've done web work for years, but I never got round to learning Swift or Kotlin properly. Never had enough time to dive into it. So my list of apps I wanted to make just sat there getting longer. This year I took one off the list and actually finished it, which still surprises me a bit. Byna : it's a countdown app. Before anyone says it: yes, there are hundreds. I picked this one because it was the smallest idea on the list, and because the t...