Best Buy offers the $20 LeapFrog App Center Download Card, model no. 39525, for $12.99. (Amazon charges the same for Prime members.) Opt for free in-store pickup to avoid the $1.99 shipping charge. That's tied with our November mention and the lowest total price we could find by $8. It allows you to choose from games, videos, and books, to download to your Leapster Explorer or LeapPad Explorer from the LeapFrog App Center.