Top Rated Apps for Common Core Standards:

Rube Works: Rube Goldberg Game

Rube Works: Rube Goldberg Game:
Rube Works is widely adopted by a growing number of elementary and middle schools and is fast becoming one of the years favorite educational games. Aligned with CCSS (Common Core State Standards) and NGSS (Next Generation Science Standards), Rube Works is a standout app that effortlessly bridges the worlds of gaming and education..

Google Play Store details:
Ratings – 4.3
Installs – 1,000 – 5,000
Developers – Electric Eggplant