Veil: White Noise & Sleep Sounds

The app synthesizes white, pink, brown, and fan noises in real time, ensuring that each second of audio is unique and never repeats. Users can select from fourteen built‑in sounds, layer up to three simultaneously, and adjust individual parameters such as treble blend, low‑pass cutoff, speed, and volume to tailor the output to their hearing preferences. A dark‑mode‑only interface provides a single‑tap start, a fading sleep timer, and voice‑assistant integration without requiring accounts or permission prompts.

Targeted at people seeking a simple, ad‑free solution for sleep, focus, or relaxation, the tool offers a one‑time purchase model rather than a subscription. It aims to replicate the precision of dedicated hardware noise generators while remaining portable on iOS and Android devices.

Distinctive aspects include real‑time synthesis that eliminates looping, a sound‑mixer with independent volume controls for each layer, and per‑sound tuning controls that allow users to shape the frequency profile of each noise type—features not commonly found in other white‑noise applications.