Beat Master is a professional metronome and rhythm tool app for iPhone. It offers precise and accurate beats for musicians of all levels. With a variety of adjustable instruments, Beat Master allows users to customize their rhythm experience.

In addition to its metronome and rhythm features, Beat Master also includes an ambient lighting function, making it a must-have tool for musicians looking to create the perfect atmosphere for their practice sessions or performances.

Please note that Beat Master offers a subscription service for access to unlimited metronome, rhythm, and ambient lighting features. The subscription fee of ¥298/year will be charged to the user's iTunes account upon confirmation of purchase. A free trial period of three days is available, and the subscription will automatically renew unless canceled at least 24 hours before the end of the current period. Users can manage their subscription and auto-renewal settings in their iTunes account settings.

For more information, please refer to the User Agreement and Privacy Policy provided by the developer.

User Agreement: [link]

Privacy Policy: [link]