People winding down before sleep
Use gentle sounds to create a calmer bedtime routine and step away from busy thoughts before sleep.
App summary
- App name
- Pure Solfe
- What it does
- Supports sleep, meditation, breathing, and relaxation with solfeggio frequencies and nature-inspired sounds.
- Supported OS
- iOS
- Main uses
- Sleep, meditation, breathing, and relaxation
- Pricing
- Free to get started.
- Data handling
- Handles generated sounds and settings inside the app.
- Official support
- Pure Solfe Support
Who it helps
Pure Solfe is for people who want a calmer sound routine before sleep, meditation, or focused time.
It combines solfeggio frequencies and nature-inspired sounds to support sleep, meditation, breathing, and relaxation.
Meditation and breathing users
Set a simple sound environment for short breaks, meditation sessions, and breathing practice.
People shifting between work and rest
Use sound to mark transitions before study, work, chores, or quiet recovery time.
Use cases
Common ways to use Pure Solfe
Use solfeggio frequencies, nature-inspired sounds, sleep music, and meditation sounds as a daily cue for rest or focus.
Play sleep music before bed
Use gentle frequency sounds and nature-inspired audio to create a calmer bedtime routine.
Support meditation and breathing sessions
Set a simple sound background for short meditation, breathing practice, and quiet breaks.
Shift into focus before study or work
Play a short sound session before studying or working to mark the transition into focused time.
Purpose routines
Start with how you want to feel, not which frequency to choose.
Pure Solfe purpose routines combine frequency, nature sound, breath mode, and timer settings for sleep, meditation, focus, morning reset, and calm breathing.
Sleep
Use 432Hz with ocean sound to create a calm sound environment before bed.
Meditation
Combine 528Hz, fire ambience, and breath mode to ease into a short meditation session.
Focus
Use 741Hz with rain sound as a simple transition before studying or working.
Morning reset
Start the morning with 528Hz and wind sound for a brief reset routine.
Calm breath
Call up 432Hz, ocean sound, and breath mode together to settle your rhythm during a break.
Official links
Official Pure Solfe links
Use these official pages for support, privacy information, and terms of service.
Knowledge Base
What are Solfeggio Frequencies?
Specific frequencies (Hz) believed to bring deep relaxation to mind and body.
Today, they are attracting global attention as sound therapy that eases daily tension and supports preparation for comfortable sleep and meditation.
Q
Which frequency should I start with?
A.
432Hz or 528Hz is a good starting point for new users.
432Hz works well for gentle relaxation, while 528Hz is a popular choice for winding down at the end of the day and preparing for sleep.
Q
Is it safe to listen to them all night while sleeping?
A.
Yes, Pure Solfe can be used during sleep at a comfortable volume.
Its audio is generated by an algorithm that replicates nature's "1/f fluctuation," designed to prevent listening fatigue even over long periods. The sleep timer can also fade the sound out naturally as you drift off.
Q
How is this different from regular music or sound apps?
A.
Pure Solfe is different because it generates sound in real time instead of looping recorded audio.
The sound includes subtle fluctuations and rich overtones, making it less repetitive and more immersive for relaxation.
The Pure Solfe Experience
Features fusing thoughtful approach with spiritual tradition.
10 Solfeggio Frequencies
Selectable frequencies from 174Hz to 963Hz. Pure tones generated by precision oscillators.
Immersive Nature Sounds
No recordings used. Our proprietary sound engine generates rain and waves in real-time. No two moments sound the same.
Breath Mode
Rhythmic guide to 'Inhale, Hold, Exhale'. Deep relaxation just by breathing along with the visual guide.
Sleep Timer
Volume fades out gradually. Accompanies you to a comfortable sleep without disturbing your transition to rest.
Fork Sound
Reproduces beats
and
overtones of Tuning Forks
Bowl Sound
Deep resonance of
Singing
Bowls
Organic
Tone
Design
Not just electronic sounds. Living frequencies that resonate with your mind.
Most Solfeggio apps just play monotonous sine waves. However, 'healing sounds' in nature always contain minute fluctuations.
Pure Solfe uses proprietary physical modeling technology to calculate the '1/f fluctuations' and complex overtones of Tuning Forks and Singing Bowls in real-time. These organic tones prevent listening fatigue and resonate gently deep within your mind.
- Rich, warm tones containing overtone components
- Relaxation effect through minute pitch fluctuations
- Sound with tuning fork and bowl elements
Immersive
Visuals
Mystical Interface to Align from Vision
Healing isn't just sound. Pure Solfe is designed to guide you into deep relaxation visually as well. Based on a dark mode that is gentle on the eyes even in a dark bedroom, the mystical aurora and starry sky calm your mind.
Chakra Colors
The app's theme color and aurora change beautifully to match the selected frequency (Chakra).
Visual Breathing Guide
The central mandala expands and contracts with your breath. Intuitively guides 'Inhale, Hold, Exhale' timing with light movement.
True Dark Mode
Deep black optimized for OLED displays. The eye-friendly design will calm your mind, even when used at night.
Proprietary Sound Engine
The Science of Computed '1/f Fluctuation'
Pure Solfe is not just a player that plays recorded sounds. Proprietary Audio Engine synthesizes sound inside your iPhone.
Pink noise and brown noise are filtered with advanced algorithms to generate irregular fluctuations found in nature in real-time. We realized ultimate immersion where "the brain never gets bored", which cannot be reproduced by loop playback of recordings.
Generative Rain
Rain intensity is randomly generated. It never rains the same way twice.
Dynamic Ocean
Reproduces the rhythm of waves with complex LFOs.
Pure Frequencies
Generates uncompressed pure sine waves. Zero quality loss.
Best Experience
with Headphones
Use headphones/earphones for
binaural immersive experience.
Engineering Review
Engineered for Peace of Mind.
Rigorous code review by psychoacoustics and signal processing experts ensures our algorithms are mathematically valid and comfortable for long-term listening, minimizing fatigue.
1/f
FILTER
Nature's Jitter (1/f)
Uses DSP industry-standard 'Paul Kellett's Optimized Pink Noise Filter'. High-precision approximation of the -3dB/oct spectral tilt generates the soothing 'fluctuation' found in wind and streams.
Mathematically Valid
INTEGRATOR
Deep, Warm Bass
The 'Leaky Integrator' algorithm eliminates divergence risks. Even during long playback sessions, it safely provides warm, deep bass (Brown Noise) without digital artifacts.
Quality Ensured
RESULT
Rating: Excellent
Achieved the highest rating of 'Excellent' in a rigorous review from mathematical and psychoacoustic perspectives. Perfectly balances computational efficiency with acoustic quality.
EXCELLENT
Healing
Frequencies
Meaning of Frequencies
174 Hz
AWARENESSBrings a sense of stability, deeply calming the mind.
285 Hz
HEALINGSupports a sense of renewal and positive energy.
396 Hz
LIBERATIONLiberates from anxiety and fear, helping to release negativity and find peace.
417 Hz
CHANGEHelps challenge change and guides recovery from negative situations.
432 Hz
POPULARResonates with nature's rhythm, bringing ultimate relaxation.
528 Hz
MIRACLEFrequency of love and harmony. Said to bring a deep sense of peace.
639 Hz
HARMONYSupports harmonizing relationships and liberation from conflict, bringing harmony.
741 Hz
EXPRESSIONEnhances expressiveness and cultivates clear power to lead to problem solving.
852 Hz
INTUITIONSharpens intuition and promotes spiritual awakening and insight.
963 Hz
ONENESSFrequency to connect with higher dimensional consciousness and feel oneness with the universe.
Pricing
Simple, One-time Purchase
No subscriptions. Pay once, own it forever.
Basic features (432Hz &
Ocean)
are free.
LAUNCH SALE
Timer & Breath
$7.99
$5.99
One-time purchase
- Unlock Sleep Timer
- Unlock Breath Mode
BEST VALUE
LAUNCH SALE
Full Set
$13.99
$11.99
One-time purchase / Everything included
- Unlock All 9 Frequencies + Manual
- Unlock All Nature Sounds
- Unlock Sleep Timer
- Unlock Breath Mode
LAUNCH SALE
Frequencies & Nature
$9.99
$7.99
One-time purchase
- Unlock All 9 Frequencies + Manual
- Unlock All Nature Sounds (Rain, Storm, etc.)
*The Free version (432Hz & Ocean Sound) is available indefinitely.
This app is intended to support relaxation and meditation, and is not intended for medical practice, treatment, or the prevention of specific diseases. Effects may vary from person to person.