GiveYaw alternatives

VYPER 2.0 is a new and improved viral marketing tool that lets business owners easily build beautiful giveaways (contests, leaderboards, waitlists, sweepstakes) and reward programs (loyalty, referral, ambassador).

If you want to run a retweet contest on Twitter, but you don't want to signup and put it your Twitter login on a shady website, just use luckyretweet.co Just paste your tweet and click "Draw". Simple as that!