# Sereze: Breathwork & HRV — Calm anxiety. Sleep. NSDR.

> Personalized breathwork and HRV tracking for stress, sleep, and focus. (iPhone/iPad app by Amita Dhand.)

- Source: https://appshunter.io/ios/app/sereze-breathwork-and-hrv/id6736566597 (this page in markdown: same URL + `.md`)
- Developer: [Amita Dhand](https://appshunter.io/developer/1437246199)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 12+
- Requires: iOS 17.6 · 83 MB
- Languages: American English
- Released: 2024-12-05
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sereze-breathwork-and-hrv/id6736566597/reviews.md

## What is Sereze?

Calm down in a couple of minutes. Real breathing, personalized by your body. Boring stories for busy minds. No network needed, all offline.

Calm you can actually see, and now share. Sereze reads your heart rate and HRV so you can watch your body settle, not just hope it does. It is private, on device, and works even in airplane mode. And with Breathe Together, calm becomes something you do with the people around you.

Listen to boring stories when silence makes your thoughts louder, or use Apple Watch guided breathing when your body feels stressed.

When you can't sleep, can't focus, or feel yourself winding up, Sereze does the breathing for you, in sessions short enough to actually use.

Tap once. Breathe. Feel steadier in minutes.

Why Sereze is different
Most breathing apps play the same audio for everyone. Sereze actually reads your body.

Tracks heart rate and HRV through Apple Watch
Picks the session your body needs right now
Turns it into one clear Calm Score, and shows your trends over time
Wakes up with you: a morning review explains last night and suggests what to do tonight
It is the difference between a yoga video and a personal trainer.

Use it when you:
Can't fall asleep: 4-7-8 breathing to wind down
Feel wound up or overwhelmed: belly breathing to settle a racing mind
Need to reset before a meeting: box breathing in about 90 seconds
Want to recover after a workout: extended exhales to ease your heart rate down
Want a calmer, steadier breath: gentle Buteyko and comfortable breath-holds

What's inside
30+ guided breathing techniques: 4-7-8, Box, Bhramari, Alternate Nostril, Buteyko, and more
Sleep Stories and NSDR (Non-Sleep Deep Rest) sessions
Morning review with personalized insights, generated on device with Apple Intelligence
Siri Shortcuts: your next session one tap or one phrase away
Apple Watch integration: every session followed by your heart rate
Logs how you feel to Apple Health State of Mind, and reads it back to tune your Calm Score
Works offline. Syncs with Apple Health.
No social feed. No streak guilt. No nudges before bed.

Pricing
Free to download, with a full-access trial to start, no card required. After that, choose your plan: $49.99/year (about $4.16/month) or $6.99/month. Auto-renews unless canceled, managed through your Apple Account.

Privacy
Your breath, sleep, and journal data stay on your device. Sereze runs entirely on device. We don't collect analytics, sell anything, or track you across apps. Apple Health access is optional, stays on your device, and is never uploaded.

Sereze is a wellness and relaxation app. It is not a medical device and does not diagnose, treat, or prevent any condition.

Terms of Use: https://sereze.ai/term_of_use.html
Privacy Policy: https://sereze.ai/privacy_policy.html

## Key features

- Personalized breathing sessions based on HRV
- Home screen and lock screen widgets
- Morning sleep review with AI insights
- Tracks progress with BOLT score and recovery rate
- Offline functionality
- Apple Watch integration

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly Subscription | $49.99 | per year |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/sereze-breathwork-and-hrv/id6736566597/reviews.md

### 5/5 — Forced me to exhale slow and better

*2026-08-08*

It has been a game-changer for improving my HRV. It’s also helping me achieve better sleep. Il

### 5/5 — Forced me to exhale slow and better

*2024-12-07*

Sereze has been a game-changer for improving and tracking my HRV. It’s also helping me achieve better sleep with its comprehensive features. I love the variety of breathing exercises, which give me plenty of options to choose from. My only suggestion: adding customization for exercise duration at the top level would make it even better. Highly recommend for anyone looking to optimize their health and well-being!

## Frequently asked questions about Sereze

### How does Sereze personalize breathing sessions?

Sereze tracks your heart rate and HRV through Apple Watch to understand your nervous system's current state. It then selects a breathing session tailored to what your body needs at that moment, offering a personalized experience beyond generic audio.

### What kind of progress can I track with Sereze?

Sereze measures real progress through metrics like your BOLT score (a measure of breath-hold capacity), breath-hold time, and recovery rate. The morning sleep review also provides insights into your night's rest and actionable advice.

### Does Sereze have ads?

No, Sereze is ad-free. The app focuses on providing a seamless and uninterrupted experience for users to manage their breathing and well-being.

### What are the subscription details for Sereze?

Sereze offers a free download with 90 days of full access, no card required. After the trial, a yearly subscription costs $49.99, which auto-renews unless canceled through your Apple Account. This averages to about $4.16 per month.

### Can Sereze be used offline?

Yes, Sereze works offline. You can access its guided breathing techniques and other features without an internet connection, making it convenient for use anywhere.

### What devices does Sereze support?

Sereze is designed for Apple devices, including the Apple Watch and iPhone. It integrates with Apple Health to sync your data and provide a comprehensive overview of your health metrics.

### How often is Sereze updated?

The latest version of Sereze is 2.29.1, and it was last updated on May 14, 2026. This indicates a commitment to ongoing development and feature improvements.

### Is Sereze suitable for younger users?

Sereze has an age rating of 12+. This suggests it is designed for teenagers and adults, focusing on health and wellness features that are appropriate for this age group.

## Version history (last 5 releases)

### 3.19 — 2026-08-26

Calmer, clearer cues on Apple Watch. Guided sessions no longer buzz on their own, and the breathing cues are now one clear tap per phase, so inhale, hold, and exhale are easy to tell apart without looking. Very short steps don't buzz at all. Plus small fixes and polish.

### 3.18 — 2026-08-18

Sereze now reads your body more closely and shows the proof.
See your HRV rise. Every session shows how much your heart rate variability climbed from start to finish, measured on your Apple Watch.
A smarter coach. It now notices when you have just worked out and treats a lower HRV as normal recovery rather than stress, and it keeps sessions eyes open when you seem to be driving. On days several signals line up, it gently tells you your body is running warm and to take it easy.
Steadier sleep, not just longer. Trends now reflects how consistent your sleep and wake times are, which can matter as much as total hours.
A one minute reset. Tap Quick reset any time for a physiological sigh, the fastest way to settle.
Train your HRV. A new three week guided program builds a calmer baseline with daily resonance breathing.
Plus night wind down improvements, a quick bedtime note to clear your head, and a batch of fixes and polish.

### 3.17 — 2026-08-11

• Guided and sleep sessions now run their full length, with a soft pause at the end so nothing cuts off mid-thought.
• Quick and Deep now show up only where they belong, on breathing sessions.
• Your watch refreshes your heart rate and HRV the moment you raise it.
• Smarter suggestions to breathe, offered only when your body actually needs a moment, never when it doesn't.

Same calm, fewer rough edges. Thank you for breathing with us.

### 3.16 — 2026-08-06

Gentler, clearer guidance across breathing sessions
Smarter at-rest suggestions that appear only when your body genuinely needs a moment
Quicker access to your daily check-in from the home screen

### 3.15 — 2026-08-02

• Favorites — heart any exercise and find them (plus a browse-all list) in Search.
• Quick start now fits the time of day, with a power nap during daytime.
• Apple Watch, refined: phone-started sessions now show a clean status, your live heart rate, and controls on the wrist
• Live heart rate now appears during the resonance and BOLT breathing tests.
• Smoother, more reliable watch sessions — guided sessions no longer get stuck, and sessions end and clean up properly every time.
• Plus a batch of fixes and polish across Home, favorites, and the daily check-in.

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## More apps by Amita Dhand

- [Treephillia](https://appshunter.io/ios/app/treephillia/id1437246200)
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- [Bivryn Biological Intelligence](https://appshunter.io/ios/app/bivryn-biological-intelligence/id6774502017)

All apps by Amita Dhand: https://appshunter.io/developer/1437246199

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*