Thank you for contacting Dyson Switzerland.

You are enquiring about the Dyson Link app.

We are happy to tell you that the Dyson Link app is designed to control multiple products from the app.

Accordingly, as a private user of our products, you have no restrictions here.

You can add more devices in the app without any problems. I cannot answer the maximum number of devices that can be added. There is no information about this in the in-app help either.