Is this legit?

Yes, Uproar is dedicated to rewarding gamers for achievements in the games you love to play. We partner with retailers, manufacturers and publishers to be able to connect to games, detect if you have completed certain quests and to offer you real life rewards for completing those quests.

How much does it cost?

Being a member and completing quests on Uproar is totally free. We do have Supporter and Premium Upgrades available for you to have more energy to use every day and gain discounted raffle tickets.

You can find details for that here