Set your pace
Pick a guided breathing pattern, use your saved resonance rate, or shape a custom rhythm around your practice.
Breathing + heart-rhythm biofeedback · iPhone
Watch your heart follow your breath.
Attune turns paced breathing into clear, live feedback. Follow a calm rhythm, pair a compatible heart-rate monitor when you want deeper insight, and learn the pace that works for you.
- Seven days included
- No card to begin
- Monitor optional
A simple practice
Three steps. One calmer rhythm.
Start with the pacer alone, or connect a compatible Bluetooth heart-rate monitor to see how closely your heart rhythm follows each breath.
Follow the guide
A clear visual pacer leads each inhale and exhale without clutter, so your attention can stay with the breath.
Notice the pattern
Review session trends and, with a monitor connected, see when your heart rhythm moves in step with your breathing.
Before
Finding the rhythm
In step
Feedback you can feel
Two rhythms, one screen.
Attune presents your breathing guide and heart rhythm together. The goal is not a perfect score. It is a visible, repeatable way to explore which pace feels steady and sustainable for you.
82%
Example in-step reading
Built for practice
Useful depth. Quiet by design.
The session stays simple. The detail is there when you need it—before you begin, while you breathe, and after you finish.
Paced breathing
Follow an uncluttered visual guide with clear inhale and exhale timing.
Heart-rhythm feedback
See your live heart rhythm and an in-step reading based on compatible beat-to-beat data.
Resonance rate test
Compare guided rates and save the breathing pace that gives you the clearest response.
Session history
Review duration, pattern, and available feedback without sending your practice to an Attune account.
Start with what you have
The pacer works on its own.
A Bluetooth heart-rate monitor adds live rhythm and in-step feedback, but it is not required for guided breathing. You can connect one later whenever you want the extra signal.
Private by default
Your breathing practice stays on your iPhone.
Attune has no user accounts, advertising, or third-party analytics. Optional Apple Health writing is controlled by you.