This application was tested with a group of people who used workshops at Espacio Pozas 14, Madrid Red Cross, and it was very new for all of them to learn about this type of application. The profile of the participants was: women between 65 and 80 years old with a basic level of technology management. 

The users who were in the session were reminded of their functioning a lot calm, and they agreed that the light in movement took them to the bottom of the sea, to the expansion into the water and its movement. They comment that it makes you keep the atención and it really evades you, allowing you to go blank. Music is central to the application and they share that it is very appropriate.

Regarding the handling of the app, everyone understood how it worked easily and saw that it was very simple and intuitive to use. The font size is perfectly optimized.

They also value very well that they can be reminders in the app to use it every day and generate a habit.

They believe that it is not only useful for them, but also for anyone who may need to relax, for example people with some kind of disability. They also did not propose in the session that it could be incorporated into a medical, dental or similar waiting room to relax. They all agree that they would install it and in fact they propose that in the same session we can leave it installed on their mobiles.

The requirements that users must have are: Attention, dovododa attention, reading ability, understanding of written messages, visual acuity, visual monitoring, manual mobility, coordination, hearing capacity is not essential.