I don't boil eggs.
So if you ask me how to do a hard-boiled or a soft-boiled, I can't help you there sorry. But hey, I can tell you about this app that can get you the perfect egg.
Created by a Swedish sandwich spread Kalles Kaviar, the app basically guides you through getting the perfect boiled egg.
Although when they say that the egg has to have a code in it, does it mean that it can only be a specific brand of egg that you can use to work with this app? Hmm.