Tagwin - Instagram contests & giveaways made easy
Giv - Snapchat & Instagram giveaways made easy
ViralSweep - Grow your fans and increase sales with sweepstakes and giveaways.
Freeplee - Free raffles service with content, created by users
once fyi - Create privacy friendly one-time mailing lists
Çekiliş GO - Raffle for businesses or your social media account