Mental flexibility games
In the app this skill is called Flex. The games make a habit and a rule disagree: read the ink, not the word; count the digits, not the digit; change rules when the card moves. Doing that quickly and without slips is mental flexibility.
All 5 mental flexibility games

Color Word
Tap the colour of the ink, not the word you read.

Number Stroop
Count how many digits you see, not which digit it is.

Place Word
A direction word sits somewhere on the screen. The cue says whether to answer where it is or what it says.

Task Switch
A card shows a number and a letter. On top, say if the number is even; below, say if the letter is a vowel.

Rule Switch
Tap the key card that matches the card above. A hidden rule decides how, and it changes.
Well-known games and tests
Other skills
Free on iPhone and iPad. Works offline, with no account.
Download on theApp StoreComing soon