Noctra Sleep is an ad-free Android app for sleep, focus, naps, and masking everyday noise. It offers white noise, brown noise, pink noise, rain, fan, ocean, nature, focus, and baby-friendly sounds. Its on-device room-noise scan listens to the surrounding environment and suggests audio that fits the room. Premium is optional, with very low-cost monthly and yearly plans for extra sounds and routines.
- No ads in the app
- Room-noise scan recommends sounds based on the surrounding environment
- White, brown, and pink noise plus rain, fan, ocean, nature, focus, and baby-friendly sounds
- Optional premium with very low-cost monthly and yearly plans
- Fall asleep faster without ads interrupting audio
- Mask apartment, street, office, or baby-room noise
- Find a sound mix for the current room without guessing
- Use calmer background audio for focus, naps, and bedtime routines

I built Noctra Sleep because many sleep-sound apps interrupt the experience with ads or make users guess which audio fits the room. Noctra keeps the Android app ad-free, offers low-cost monthly and yearly premium options, and includes an on-device room-noise scan that listens to the surrounding environment and recommends audio that matches it. I would love feedback from Android users who use white noise for sleep, focus, naps, or masking city and apartment noise.

I built Noctra Sleep because many sleep-sound apps interrupt the experience with ads or make users guess which audio fits the room. Noctra keeps the Android app ad-free, offers low-cost monthly and yearly premium options, and includes an on-device room-noise scan that listens to the surrounding environment and recommends audio that matches it. I would love feedback from Android users who use white noise for sleep, focus, naps, or masking city and apartment noise.
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