DragonSoul is free to download in the iPhone/iPad App Store and the Google Play Store for Android. I have been playing this game non-stop for about a week now. I know it has been out a while, but I just discovered it in the App Store. I don't play too many mobile games, but this is the best game I have played since Kingdom Rush. DragonSoul is a fun fantasy game with wizards and dragons so of course the nerd in me enjoyed it from the day I downloaded it. There are a ton of different modes in the game such as campaign, fight pit, expedition, and more. You can also join a guild and battle other guilds if you choose. If you are looking for a fun game that has a group chat type environment on your mobile device then you should give DragonSoul a shot on your phone or tablet. It is free to download and play so why not?
Google Play Store for Android; https://play.google.com/store/apps/details?id=com.perblue.dragonsoul&hl=en
iPhone or iPod Touch; https://itunes.apple.com/us/app/dragonsoul-rpg/id1020327340?mt=8&at=10l5Ha
Developers Website; http://dragonsoulgame.com/