For the people who spend all day regulating someone else
You’re the one who needs the time out.
Resyna plays gentle, layered sound that follows your heart rhythm and eases your breathing slower. Two to five minutes, whenever the day has run you down — nothing to wear unless you want to.
Free on iPhone and Apple Watch. The first 500 people keep every feature free for life — no subscription, now or later.
Patent pending · Not a medical device
Start where you are
Resyna is the same app in every one of these moments. These are just the ways in — pick the one that sounds like today.
Calming sound that listens to your heart
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.
Built by people who needed it first
Resyna started inside VizyPlan, an app for families raising autistic and ADHD kids. It was a card in someone else’s routine before it was its own app — which is why it assumes headphones might not be comfortable, why a session can be two minutes, and why nothing here asks you to explain how you feel first.
It is also why Resyna does not sell you healing frequencies. What it does is pace your breathing, which is a well-studied way to help the body settle. That is the whole claim, and we would rather make a small true one than a large one.
Get Resyna
Free on iPhone and Apple Watch. 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.
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.
Is there a subscription?
No. Resyna is free to download today, and the first 500 people keep every feature free for life — no subscription, now or later. If paid features arrive after that, the first 500 still keep theirs.
What happens to my heart-rate data?
Your heart rhythm drives the sound while a session is playing. Resyna does not sell it and does not need an account to play. See the privacy policy for exactly what is stored and for how long.
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.
Getting the most from a session
- 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