Hoshinzo: Athlete Breathwork
Recovery, focus, stress relief
Free
HOSHINZO helps you regulate your nervous system through breathing.
Choose how you're feeling right now: acute stress, anxiety, anger, lack of focus, fatigue, or trouble falling asleep. The app guides you to the most suitable breathing protocol, out of 15 documented techniques.
It also offers protocols tied to specific moments: before and after training, morning or evening.
WHAT MAKES HOSHINZO DIFFERENT
Most breathing apps treat every technique as equally valid. HOSHINZO makes a radical choice for transparency: each protocol displays its evidence level, rated on a scale adapted from the GRADE methodology. You always know what you're relying on — whether it's a technique backed by published studies or a practice with more limited evidence.
Each protocol is linked to its reference publications: Heart coherence, Cyclic sighing (Stanford RCT, 2023), 4-7-8 breathing, Box breathing, Nadi Shodhana, and more.
HOW IT WORKS
Breathing is one of the few voluntary levers on the autonomic nervous system. A prolonged exhale is associated with vagus nerve stimulation and can activate the body's "rest" mode. A pace of six breaths per minute favors heart-breath synchronization — this is heart coherence. Each technique is linked to an identified physiological mechanism, clearly explained in the app.
THE SIX STATES
· Acute stress — calm down fast
· Anxiety — quiet circular thoughts
· Anger — defuse irritation and rising tension
· Lack of focus — regain clarity
· Fatigue — restore energy
· Sleep — fall asleep more easily
TARGETED MOMENTS
· Before training — physical activation
· After training — muscle recovery
· Morning — activation and clarity
· Evening — wind down and recover
ON APPLE WATCH
Hoshinzo is also available on Apple Watch: start a breathing session right from your wrist.
A QUIET GUIDE, VISUAL OR AUDIO
During the exercise, the screen strips away entirely: a visual breathing pace guide, nothing else. If you like, a sound guide paces each inhale and exhale (Breath, Astral, Melodic or Handpan), and an ocean, nature or forest ambiance plays in the background. Everything is one tap away, and everything can be turned off.
HONESTY FIRST
No invented metrics, no fake social proof, no defensive jargon. Contraindications for each technique are clearly stated. HOSHINZO doesn't replace medical care — it's a regulation tool, not a treatment.
Available in French, English, and Spanish.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New: share your sessions.
• A card with the shape of your breathing, your state and the duration
• A transparent sticker to place on your photo, in 3 colors
• Share the app with friends from Settings
• Send us your feedback from Settings
The developer, Yoann Bourdet, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yoann Bourdet
- Size
- 26.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Yoann Bourdet