VerifyShare is described as 'Choosing the winners of the contest in Instagram by comments. Checking mentions, likes, subscriptions, reposts in the feed and stories. Without registering. Export comments, members and likes to an Excel file' and is an website. There are five alternatives to VerifyShare, not only websites but also apps for SaaS, iPhone and iPad. The best VerifyShare alternative is Gleam. It's not free, so if you're looking for a free alternative, you could try POPSMASH or GiveLab. Other great sites and apps similar to VerifyShare are Promo Amp and Lizaonair Giveaway Randomizer.
It's the best app for Instagram giveaways.