Assasa
Breathwork & Heart Rate
Free · Designed for iPad. Not verified for macOS.
New: heart rate analysis with Apple Watch, trends for hold time, HRV and resting heart rate – and your sessions now count in Apple Fitness.
Assasa is your companion for breathwork with breath holds – on iPhone and Apple Watch. Breathe in rhythm, hold your breath and see how your body responds.
GUIDED BREATHING SESSIONS
• Cyclic breathing, breath holds (retention) and recovery breaths in as many rounds as you like
• Voice guidance, gong and vibration – even with the silent switch on and the screen locked; music from other apps keeps playing
• Calibration finds your personal breathing rhythm
• Practise with your eyes closed: vibration guides you through every phase
• Soundscapes for focus or relaxation
• After the last round, simply add 1 or 3 more rounds
APPLE WATCH
• Standalone sessions right on your wrist – the watch keeps vibrating with your arm lowered
• Or as a remote: the watch mirrors your iPhone session and vibrates along
• Advance the phase with a tap, double tap or the Digital Crown
• Set rhythm and rounds right on the watch
• Watch sessions appear automatically in your iPhone history
HEART RATE ANALYSIS & APPLE HEALTH – NEW
• Heart rate curve for every session with range (min–max) and average
• Dive reflex analysis per round: heart rate drop during the hold, peak after the recovery breath and recovery time
• Saves sessions as a Mind & Body workout (counts in Apple Fitness) and/or as mindful minutes
• Trends: hold times over 12 weeks, practice calendar, plus HRV and resting heart rate from Apple Health
• Your health data stays on your device and in Apple Health
PROGRESS
• History with every round, heart rate and personal best
• Streaks, badges and milestones
• Optional account to sync your history across devices
DESIGN & PRIVACY
• Deep black, OLED-optimised design
• No subscription, no ads, no tracking
• English and German
Live heart rate requires an Apple Watch (standalone session or mirroring) and the Health mode “Workout” or “Both”.
SAFETY
Never practise breath holds in water, while driving or anywhere a loss of consciousness could be dangerous – always sit or lie down. Assasa is for relaxation and is not a medical device; heart rate values are for information only and not a medical diagnosis. If you have health concerns, talk to your doctor.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New in version 2.1:
• Apple Health: sessions count as a Mind & Body workout in Apple Fitness – or as mindful minutes, your choice
• Heart rate curve with Apple Watch: range, average and dive reflex analysis per round (drop during the hold, peak, recovery time)
• New trends: hold times over 12 weeks, practice calendar, HRV and resting heart rate
• Tap any session in your history to see the details
• Apple Watch: advance the phase with double tap or the Digital Crown
• Apple Watch: add 1 or 3 rounds after the last one – also while mirroring
• New help page for the watch app
• Your health data stays on your device and in Apple Health
The developer, Jan Moller, 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 Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Contact Info
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jan Moller
- Size
- 10.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
4+
- 4+
- Copyright
- © 2026 - Jan Moeller