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
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
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.
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.
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.
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.
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.
Rating: Excellent
Achieved the highest rating of 'Excellent' in a rigorous review from mathematical and psychoacoustic perspectives. Perfectly balances computational efficiency with acoustic quality.
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.
Simple, One-time Purchase
No subscriptions. Pay once, own it forever.
Basic features (432Hz &
Ocean)
are free.
Timer & Breath
One-time purchase
- Unlock Sleep Timer
- Unlock Breath Mode
Full Set
One-time purchase / Everything included
- Unlock All 9 Frequencies + Manual
- Unlock All Nature Sounds
- Unlock Sleep Timer
- Unlock Breath Mode
Frequencies & Nature
One-time purchase
- Unlock All 9 Frequencies + Manual
- Unlock All Nature Sounds (Rain, Storm, etc.)
*The Free version (432Hz & Ocean Sound) is available indefinitely.