What technology provided the platform for cognitive exercises to become widespread apps?

Answer

Smartphones and tablets

The widespread adoption and proliferation of cognitive training exercises into accessible applications were fundamentally enabled by the advent and ubiquity of powerful, portable computing devices. Specifically, the arrival of smartphones and tablets provided the necessary mobile platform that allowed these digital exercises, which previously might have been confined to research labs or paper formats, to be delivered daily to a mass consumer audience. This shift from dedicated lab settings or static paper tests to portable digital applications marks the key transition point in the history of the modern cognitive training app.

What technology provided the platform for cognitive exercises to become widespread apps?
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