We built ThirdTone in devotion to the potency of sound. Evan brings decades of creating through deep listening. Lisa brings a lifetime of studying the body. Together, we've created something we could not have made alone: sound medicine that invites your body to heal and your mind to open.
Evan Premo Co-founder 
Lisa Masé Co-founder
Six sonic elements to activate
healing states
Every frequency comes from acoustic instruments, digitally shaped to influence brainwave states. The full library lives inside the app.
Wellness Formulas and Custom Protocols move with you on the healing path.
Real effects, observed across neuroscience
and psychoacoustic research.
Binaural beat exposure has been shown to significantly predict post-session relaxation outcomes, accounting for meaningful variance in individual responses.
McConnell et al., 2014 → 22+ Clinical studies analyzedA meta-analysis of 22 peer-reviewed studies found statistically significant effects on anxiety, cognition, and pain perception.
Garcia-Argibay et al., 2019 → Measurable Creative cognition shiftsFrequency-based audio stimulation has been shown to influence divergent thinking—one of the core markers of creativity—with effects varying by individual neurobiology.
Reedijk et al., 2013 → Whole-brain Neural engagementResearch shows that binaural and frequency-based auditory stimulation can modulate activity across multiple regions of the brain, supporting integrated neural processing.
Dougherty et al., 2024 →
Your complete sound pharmacy
in your pocket
Personalized based on your needs.