AweSUM, originally $0.99, is today's free app. A nice original puzzle. Move numbered cube around so that they add up to the sum of the predetermined AweSUM number.
Critter Escape, originally $0.99, is today's free app. A stealth based games that has you control your character as you try and escape capture from a research facility.
Wacky Sound Effects, originally $0.99, is today's free app. Now you know that Amazon needs to add some productivity apps to this when a sound effect app is next.
Big Brain Quiz GOLD, originally $5.99, is today's free app. It's a trivia game with some social media options. It's linked with OpenFient so you can complete with others.