Thank you for your answer! Why do I need to know who is my audience? => You mean Android or IOS? I think it can be better to begin by an "everyone" approach, I

Thank you for your answer! Why do I need to know who is my audience? => You mean Android or IOS? I think it can be better to begin by an "everyone" approach, I will have a look on the Toggle Device Mode, thank your for the info!