Breathing Exercise - Calmerra
Box breathing, 4-7-8, HRV
$1.99 · Designed for iPad. Not verified for macOS.
Science-backed breathing techniques for better sleep, sharper focus, and instant calm. Just follow the circle. No counting needed.
Breathe better. Sleep deeper. Focus sharper.
Calmerra is a beautifully simple breathing app grounded in science. Choose your intention — whether it's winding down for sleep, sharpening your focus, or resetting after a stressful moment — and Calmerra recommends the right technique for you.
No confusing instructions. No counting. Just follow the animated circle and breathe.
9 SCIENCE-BACKED TECHNIQUES
Each method is rooted in peer-reviewed research, including the Stanford-developed Physiological Sigh for instant stress relief, 4-7-8 breathing for sleep, Box Breathing used by Navy SEALs, and more.
BREATHE WITH PURPOSE
Tell Calmerra what you need right now:
Better Sleep
Feel Calmer
Sharpen Focus
Reset Energy
Quick Stress Relief
Get a personalized recommendation in seconds.
VISUAL-FIRST DESIGN
A gentle animated circle guides your inhale, hold, and exhale. No numbers to track. No voice telling you what to do. Just you and your breath.
TRACK YOUR PROGRESS
Build a daily breathing habit with session history, streaks, completion rates, and stats. See your favorite techniques and total mindful minutes at a glance.
APPLE HEALTH INTEGRATION
Sessions automatically sync as Mindful Minutes in Apple Health, so your breathing practice lives alongside the rest of your wellness data.
CUSTOMIZE YOUR PRACTICE
Adjust phase timing, set your number of cycles, and toggle haptic feedback to make each session yours.
NO ADS. NO CLUTTER.
Calmerra is designed to calm you, not distract you. A clean, warm interface that feels like a deep breath the moment you open it.
What's Inside:
• 4-7-8 Breathing
• Box Breathing
• Equal Breathing
• Resonance Breathing
• Physiological Sigh
• 4-6 Breathing
• 4-8 Breathing
• 1:2 Ratio Breathing
• Rectangle Breathing
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Calmerra is now a paid app, with all breathing techniques and features fully unlocked. No subscription is required.
The developer, Nastja Asipkina, 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
- Nastja Asipkina
- Size
- 37.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 2 more
- English, Russian, Spanish
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
Contains
Health or Wellness Topics
- Copyright
- © 2026 Nastja Asipkina
