I have activated the skill for alexa but no pixie device is added to me
(while in google home instead after adding the service my pixie appeared)
what can i do or check to solve?
Which Alexa still are you using? It should be the Netro Home skill not the Netro skill.
Also, I think you will see the Netro device in the skill. It is completely on voice command and after you link your Netro account you can just say the commands to Alexa.