From what I can tell, lumosity.com offers you 14 days as a free trial then your account is billed for $80 for a year's subscription.
I am not commenting either pro or con. Just commenting about lumosity rates. They are hard to find on-line.
Lumosoty.com and Posit Science at
http://cts.vresp.com/c/?PositScience...4d9/fd5cff8623
appear to be the top rated brain exercise companies.
Posit Science is much more expensive but considered to have better science behind their program. Just what I have found online.
I have not tried either. SSDI does not pay enough to afford either one.