A new "full-scale" free-to-play (with in-app purchases) Final Fantasy game is out now for iOS and Android devices. It's called Final Fantasy Brave Exvius and includes a "captivating story" with turn-based gameplay.

Adventurers begin their quest for a highly-coveted crystal, shortly meeting two knights from Grandshelt, and a young girl. With special appearances by classic FINAL FANTASY characters like Cecil, Vivi and Terra, players adventure through fields and dungeons discovering items, collecting gil, uncovering hidden paths, and unlocking high-quality CG-animated summons.

The game has been out in Japan for a bit and boasts more than 6.5 million players. At least, that's what they tell me.