小睡眠 - 内置白噪音帮助睡眠 is a productivity application designed for iPhone users, aimed at improving sleep quality through sound therapy. The app allows users to easily create sounds at different frequencies by sliding their fingers up and down, making it user-friendly and practical for those seeking relaxation. It includes built-in white noise options, providing a natural ambiance that can be beneficial for individuals who struggle with sleep, distractions, or anxiety.

Key features of the app include automatic frequency adjustment, with a maximum frequency setting of 25,000 Hz. Users can choose from multiple playback modes, including list looping, single track looping, random play, and sequential play. Additionally, the app has been fully optimized for iOS 13, ensuring compatibility with the latest mobile operating system.