Protect your children and your family and block access to online gambling such as poker, casino, blackjack, sports betting. LastPass: Free Password Manager. If you are really having problems with online gambling then blocking sites could be a way to help you However there are some free alternatives that may do the job. Just look for the software in the App Store or Play Store. gamban® blocks access to online gambling, including online casinos, sportsbetting, bingo and poker.