Is there an online service that helps develop the ability to concentrate, concentrate your attention?

Question

IT education

Interested in web services with this purpose. In my opinion, this is an interactive service that sets certain conditions for short gaming sessions with symbols, pictures, makes short-term memory and concentration work at the same time in order to increase its own efficiency in continuous work. Are there options?

Answer 1

Attention concentration training. Exercises, Games.

Answer 2

Maybe lumosity will come in handy