According to a post on the TFEW VIP Discord server, Transformers: Earth Wars has reached 15 million downloads globally. Here is a look at the exact post:

Transformers: Earth Wars has reached 15 million downloads globally on Android and iOS combined! Here is a small thank you gift to everyone!

As a thank you to the community, all who use the link (below) will get a couple thousand Premium Crystal shards.

TFEW Crystals Link: http://bit.ly/15Milliond