Yes, Badland Brawl is free to play, but it does also offer to purchase in-game currency for real money. These purchases can be made directly from the Shop tab. The transactions are handled entirely by the App store/Google Play services, to ensure maximum safety of your personal and payment information.
While some items can be purchased through our Shop, we also want to make sure that our players can choose how they prefer to play: the same items that are available for purchase on our Shop, can also be earned while leveling up.
For further information on how to enable or disable in-app purchases, please visit these articles:
Pick your preferred play style and start brawling!