BTS Universe Story is a game developed by Netmarble Corporation and is available on the iPhone platform. The game is based on the official BTS Universe and allows players to create their stories using an easy-to-use, personalized story-creation system. The game also offers expert tools for those who want to level up their storytelling skills.

One of the unique features of BTS Universe Story is its choice-based playthrough system, where players can influence the ending of the story by making choices that impact the fate of each character. Players can also build their collection and their personal universe by creating their own BTS Universe Collection.

Please note that the app offers in-app purchases, which can be disabled by adjusting the device settings. By downloading the game, players agree to the Terms of Service and Privacy Policy. Gameplay is supported on tablets.

The Premium membership costs $7.99 per month and can be purchased via in-app purchases. Monthly subscription fees will be charged to the iTunes account. Cancellations can be made by logging into iTunes > Account > Subscriptions.