Calming sound that listens
to your heart
Resyna plays soft, layered tones that follow your heart rhythm and gently pace your breathing slower — a calm space, made to support relaxation.
Get Resyna on iOSOn Android? Get notifiedFree — and the first 500 keep every feature free for life · Patent pending · Not a medical device
How Resyna works
Resyna plays gentle, layered sound that follows your heart rhythm and slowly guides your breathing toward a calmer, steadier pace. Slow, paced breathing is a well-studied way to help the body settle — what researchers call coherence. It's made to support relaxation, not to treat any condition.
Listens
With an Apple Watch or Bluetooth heart-rate strap, Resyna follows your actual heart rhythm in real time. No wearable? A gentle default pace works too.
Responds
Soft, consonant tones shift slowly as you settle, encouraging your breathing toward a calmer, steadier rhythm.
Settles
Slow, paced breathing is a well-studied way to help the body settle — what researchers call coherence.
Listening well
- Best with headphones, if able to wear them without sensory discomfort
- Start slow: try 2-5 minutes at first, then build up gradually as it feels comfortable
- If you feel any discomfort, dizziness, or unease, stop listening right away
- Do not operate heavy machinery after listening
- Not a medical device and not medical advice; it does not diagnose, treat, or cure any condition. If you are pregnant or have epilepsy or a heart condition, check with your doctor first
Frequently asked questions
What is Resyna?
Resyna is a free iOS app that plays gentle, layered sound designed to support relaxation. It follows your heart rhythm and slowly guides your breathing toward a calmer, steadier pace.
How does Resyna work?
Resyna plays gentle, layered sound that follows your heart rhythm and slowly guides your breathing toward a calmer, steadier pace. Slow, paced breathing is a well-studied way to help the body settle — what researchers call coherence. It's made to support relaxation, not to treat any condition.
Do I need headphones?
Yes — headphones are recommended. Resyna plays slightly different tones to each ear, which only works when left and right channels are separated.
Does Resyna need an Apple Watch or heart-rate strap?
No. Resyna works on its own. If you wear an Apple Watch or connect a Bluetooth heart-rate strap, the sound adapts to your actual heart rhythm; without one, Resyna uses a gentle default pace.
Is Resyna a medical device or therapy?
No. Resyna is not a medical device and does not diagnose, treat, or cure any condition. It is made to support relaxation. If you are pregnant or have epilepsy or a heart condition, check with your doctor first.
How long should a session be?
Start with 2–5 minutes at a comfortable volume and build up gradually as it feels comfortable. Stop if you feel any discomfort, dizziness, or unease.
Get Resyna
Resyna is on iPhone and Apple Watch, free to download. The first 500 people keep every feature free for life — no subscription, now or later.
Android
Android is in testing and not out yet. Leave your email and we’ll send one message the day it lands — the free-for-life offer holds for you too.
Made by VizyPlan — an app for families raising autistic and ADHD kids, where Resyna first took shape.