What is the main OKVED activity code to choose to launch a mobile application?

Question

Apple Developer Program

Good afternoon, tell me, please, what is the main OKVED activity code (for LLC) to choose to launch a mobile application in iOS?
We ordered the development of an application from the developer, we need to get a DUNS number soon, is there a correlation between obtaining this number and the main code of economic activity?
A social network mobile application with the ability to make in-app purchases, we monitored similar applications, these legal entities often have the code "62.01 - Development of computer software" as their main activity.
Do we need to specify this code as the main one, despite the fact that we are not developers?