SonoLune Screen Dimmer & Sleep

Soundsoft Lab

In-app purchases

About this app

SonoLune is a screen dimmer, a blue light filter and a sleep sound mixer in one calm environment. Dim below your phone's own minimum, warm the screen for the evening, and fall asleep to an atmosphere you built yourself.

Not just a timer. Not just a white noise app. Not just a blue light filter. Everything is optional and off until you choose it.

No ads. No account. No third-party trackers built in. Core use works offline.

WHY PEOPLE INSTALL SONOLUNE
• A screen dimmer that goes below the system minimum, for reading in a dark room
• A blue light filter and warm night light for the evening
• Sleep sounds and white noise for calmer bedtimes
• Ambient focus music for study, reading, and deep work
• Eye comfort and screen breaks for long phone use

LIGHT SUITE
• Dim the display below the phone's own minimum brightness
• Warm Light on a true colour-temperature curve, warm-white to candlelight
• Blue light reduction for night and long reading
• Quiet Veil softens glare and harsh contrast
• Paper Matte with a tactile e-paper grain, like reading on a Kindle
• Colour Veil tints the screen; Living Field adds gentle motion
• The screen dimmer and the filter can carry across the whole phone, not only this app

SOUND ATMOSPHERE
• Layer rain, wind, forest, ocean and room tone into your own soundscape
• Curated fields: Library Rain, Tide Lantern, Low Storm, Quiet Room, Deep Rest
• NeuroLayers add binaural tones and stereo width for focus and rest
• Atmosphere Depth shapes warmth, room space, and layer presence from one calm control
• Compose, name, and save soundscapes to return to later

NIGHT ENVIRONMENT
• A deeper night space with an intensity slider and depth presets
• Auto-deepen through the evening, at the pace you choose
• A screen that can follow your own sun: local sunset and sunrise, worked out offline with no GPS

FOCUS SESSION
• A calm ritual, not a bare timer: name what you sit down to do and it is read back at the close
• Choose a room that recolours the screen and matches your light and sound
• Carry your Ambient Field into Focus. No streak to chase

PRESENCE FIELD
• A visual detox, a field not a fence, the calm answer to app blockers
• As your atmosphere deepens, a warm quiet draws over the apps that pull at you
• Choose the few apps it is for; always tap-through, always one tap to lift
• Uses Usage Access only to know which app is in front, never to read your screen

MIND, EYE CARE AND ARCS
• Living Moments for light and atmosphere you can return to, with Moment Memory
• Lune Guard eye care: 20-20-20 breaks, blink and far-focus cues, in or out of the app
• Lune Field, a living Night wallpaper: shape the sky, moon, horizon, and stars
• Lunar Arc schedules Night, Sound, Light, Mind and Focus to meet your day

ONE CALM SYSTEM
Use one app instead of a separate screen dimmer, blue light filter, night filter, sleep sound app, white noise app, focus timer, and relaxation tool.

WHAT IS FREE
Free: the screen dimmer, the blue light filter, dimming below minimum, Quiet Veil, Colour Veil, the core sound layers, focus sessions, Night and the Presence Field.
An optional one-time supporter purchase opens Paper Matte, the Living Field, saved soundscapes, Atmosphere Depth, NeuroLayers and deeper Presence. A monthly patronage covers the Lab sessions and packs that keep arriving. Neither is needed.

PRIVACY-FIRST
• No ads
• No account required
• No streak pressure or gamified loops
• No third-party trackers built in
• Core use works offline

ACCESSIBILITY SERVICE USE
Optional. If you turn on full-system Light coverage, SonoLune uses Android AccessibilityService only to extend the light tint onto the lock screen and notification shade. It never reads screen content, notifications, text, passwords, or personal data, and is never used for tracking or ads. You can use SonoLune fully without it and turn it off anytime.

Built with care. Shaped with restraint. Guided by calm.
Enter the environment.

Ratings and reviews

NOTE: As of 1.7.0 my gripe does NOT exist! it was updated for smoother listening. Original review: I really like SonoLune. I use it for work, my alarm, and pretty much anything for focus. My only gripe is when the sound reaches the end, it resets and there is a noticeable shift/restart of the sound instead of a gradual crossover so to speak. Otherwise, absolutely love. 5/5.

Sonolune creates a calm and peaceful environment that is perfect for relaxation and sleep. The soothing voices make it easier to unwind, while the screen-time control is useful for reducing unnecessary phone use. However, as an Indian user, I feel the app can sometimes be a little complex to understand and navigate. A simpler interface, clearer guidance, and more India-friendly language or voice options could improve the experience. Overall, I really like the concept and its potential in India.

I enjoy using SonoLune as it is ad-free which helps me focus on the sound without distractions. I also like that it works offline ensuring reliability even without Wi‑Fi. The soundscapes are truly calming and I can combine them to suit my mood. Overall this app provides a calm, distraction-free and user-friendly experience.

What’s new

You asked, and this is the answer.

A first run now opens on eight doors, one tap each, instead of nine pages to read.

True black for OLED screens, and it reaches every room now.

Night can hold calls and notifications back for as long as it has the screen.

Presence keeps improving: a video sent to a floating window no longer ends the field. Still in beta.

Every suite reads properly at the largest font, plus dozens of smaller fixes. Full notes in the app's Field Journal.