One example : Calculator
This is one of the currently 21 exercises at NeuroNation. After signing up, you can enjoy all of the exercises. Signing up is absoultely free of charge, so why not try it out?Why should i sign up?
NeuroNation is only able to track your progress if you have an account. Having signed up, you can view your strengths and weaknesses. This way, your training can be fitted to neutralize weaknesses and to improve strengths.
For signing up, an email adress is needed. Your email adress is used for e.g. retrieving your password if you forgot it. It is also used for notifying you about new brain training exercises on NeuroNation. However, your personal data will never be passed on to third parties.