Which course or program should I choose to maximize the functionality of the app?

To fully utilize the app's functionality and make the most progress in your voice training journey, we highly recommend enrolling in our Ultimate Challenge. The Ultimate Challenge is specifically designed for users who are seeking an advanced course and want to extract the maximum benefits from our app. By completing this challenge, you will gain access to an extensive and comprehensive program that will help you refine and enhance your voice. Whether you're an experienced user or looking to take your skills to the next level, the Ultimate Challenge is tailored to meet your needs and provide you with a rewarding experience.