CoinGecko's candies can be used to redeem rewards available here at Candies Rewards Store.
Do collect as many candies as you can so that you could trade them for any of these rewards. Candies are distributed every 24 hours and they do compound so you wouldn't want to miss it.
If you couldn't find any rewards that's appealing, fear not! Our team will be adding more rewards in the future so do stay tuned!
Here's a blog post that further explains the use of CoinGecko Candies!