An excellent domain name for hosting or advertising online sweepstakes and contests for promotional websites and apps, and especially a great domain for sponsors that use cash prize promotions and giveaways to loyal subscribers, and for lead generation campaigns. CashPrize.com could also be very useful as an online lottery ticket sales app or lottery results website.
BuyOpt.com
BuyOpt.com is a great domain name for an email list building or lead generation service, or social selling app for other peoples things similar to the LetGo selling app.