100 Free Apps For Your Child's Amazon Fire Tablet - Is your child always asking you to download apps to their Android phone or Amazon tablet? You will love Amazon Underground. With Amazon Underground you have access to over 3,000 apps and I have picked our top 100 favorite apps for children that you can send stright to your child's device from Amazon.com. It's fast and easy. Check it out today. In about 2 hours your child can have over 100 free apps on their device! #ad