I see so many of them around today but I am always skeptical of the scientific validity of them. I’m happy to pay a reasonable amount and I greatly value privacy. Main thing for me would be trying to improve memory.
Any recommendations are appreciated! If I need to go out and buy a DS and a copy of Brain Age, so be it.
I’m utter shit at math, so I got one of those apps for kids from Kahoot that teaches you algebra starting with symbols instead of numbers, which was helpful until I reached the level where they started switching some of the symbols to numbers and letters, and it got way too confusing again.
numbers and letters are symbols