The 6-8 Sports app subscription is through Apple or Google Play (depending on if you have an iPhone or Android). Therefore you need to visit Settings on your phone to view any and all active subscriptions you have. You will also be able to cancel your subscription in Settings. 

For an Apple phone, please follow THESE instructions.

For an Android phone, please follow THESE instructions. 

Since mobile app subscriptions are not managed by 6-8, you will you need to manage your subscription directly through Apple or Google Play and we can't cancel for you.