Box breathing app icon - meditation and breathing exercise

Breath

Master Box Breathing Technique · Box Breathing Exercise for Anxiety · Professional Breathing App

🧘 Start Practice 📖 View Tutorial

✨ About

Breath is a beautiful box breathing app designed to help you master the box breathing technique. Learn what is box breathing and practice this proven breathing exercise for anxiety relief, stress reduction, and improved focus. With its clean design, smooth animations, vibration feedback, and audio cues, it provides an immersive box breathing meditation experience.

This is a PWA (Progressive Web App) that can be installed on your phone's home screen and used like a native app. Completely free, ad-free, privacy-respecting box breathing exercise app, with all data stored locally on your device.

Box breathing app interface showing breathing exercise with visual animation circle

App Main Interface - Clean & Elegant Design

🎯 Core Features

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Smart Breathing Rhythm

Scientific inhale-exhale rhythm with visual animation guidance to help you master proper breathing easily.

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Flexible Duration

Preset options of 8s, 10s, 12s, plus custom 4-60s duration to meet different scenario needs.

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Vibration Alerts

Android devices support vibration feedback at each phase transition, even with eyes closed.

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Beep Sound

Simple audio cues available on all platforms (iOS/Android/Desktop) to complement vibration.

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Beautiful Visual Animation

Soft gradient glow, smooth scaling animation, elegant outer ring pulsation for immersive experience.

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Screen Wake Lock

Uses Wake Lock API to prevent screen sleep during practice sessions.

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Offline Ready

Service Worker enables offline caching, works without internet connection.

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PWA Installation

Add to home screen, runs in standalone window for near-native app experience.

📖 Tutorial

Quick Start

Open App

Visit the app URL in your browser, or tap the Breath icon on your home screen (if installed).

Select Duration

Tap the 8s / 10s / 12s buttons at the bottom to quickly choose breathing cycle duration. Beginners should start with 8s.

Start Practice

Tap the central blue orb to begin breathing exercise. Follow the circle's contraction and expansion to adjust your breathing:

  • Circle contracts = Inhale
  • Circle expands = Exhale

Follow the Rhythm

Close your eyes and focus on breathing. Vibration and sound cues will alert you at each phase transition. The screen also shows current phase and remaining time.

End Practice

Tap the central circle again to stop. Recommended: 3-5 minutes per session, 2-3 times daily.

💡 Pro Tip: Background Practice

Once you're familiar with the rhythm, you can minimize the app or switch to other tasks. The audio beep cues will continue to guide you through each breathing phase transition (inhale ↔ exhale), allowing you to maintain your practice while working, reading, or doing other activities. This hands-free approach makes it easy to integrate breathing exercises into your daily routine.

Advanced Settings

Open Settings Panel

Tap the gear icon ⚙️ at the bottom to open settings.

Custom Cycle Duration

Drag the Breathing Cycle Duration slider to adjust freely between 4-60 seconds. Suitable for advanced users to customize personal rhythm.

Adjust Vibration Duration

Drag the Vibration Duration slider (Android only) to set vibration length (0.1-2.0 seconds).

Check Feature Support

The settings panel bottom displays supported features on your device: Vibration, Wake Lock, Service Worker, etc.

Install as PWA

📱 Android Chrome

  1. Visit the app page
  2. Tap the Install icon in browser address bar
  3. Or tap menu (⋮) → Add to Home screen
  4. After confirming install, app icon appears on home screen

🍎 iOS Safari

  1. Visit the app page
  2. Tap the Share button in bottom toolbar
  3. Scroll down and select Add to Home Screen
  4. Enter name and tap Add

🖥️ Desktop Chrome/Edge

  1. Visit the app page
  2. Click the Install icon in address bar (computer + download arrow)
  3. After confirming install, app opens in standalone window

📊 Platform Support

Feature iOS Safari Android Chrome Desktop
Core Breathing ✅ Full Support ✅ Full Support ✅ Full Support
Beep Sound ✅ Supported ✅ Supported ✅ Supported
Vibration ❌ Not Supported ✅ Supported ❌ Not Supported
Wake Lock ✅ Supported ✅ Supported ✅ Supported
Background Running ⚠️ Limited ⚠️ Limited ✅ Supported
PWA Installation ✅ Supported ✅ Supported ✅ Supported
Offline Usage ✅ Supported ✅ Supported ✅ Supported

Important Notes:

❓ FAQ

Q: What is box breathing?
A: Box breathing, also known as square breathing or four-square breathing, is a powerful stress-relief technique used by Navy SEALs, athletes, and meditation practitioners. It involves breathing in a rhythmic pattern to calm the nervous system, reduce anxiety, and improve focus. This app simplifies the box breathing technique with visual guides, vibration alerts, and audio cues to help you master this proven breathing exercise.
Q: How does the box breathing technique work?
A: The box breathing technique works by creating equal phases of breathing: inhale and exhale for the same duration (e.g., 4-8 seconds each). This rhythmic pattern activates the parasympathetic nervous system, which helps reduce stress hormones, lower heart rate, and promote relaxation. Our app guides you through each phase with visual animations and alerts.
Q: How to do box breathing exercise?
A: To do the box breathing exercise: ① Tap the central blue orb to start ② Inhale slowly as the circle contracts (e.g., 8 seconds) ③ Exhale slowly as the circle expands (8 seconds) ④ Repeat for 3-5 minutes. The app provides vibration (Android) and audio cues at each transition to guide you. Beginners should start with 8-second cycles.
Q: Is box breathing good for anxiety?
A: Yes! Box breathing is highly effective for anxiety relief. Studies show that controlled breathing exercises like box breathing can significantly reduce anxiety symptoms by regulating the autonomic nervous system, lowering cortisol levels, and promoting a sense of calm. Many users report feeling more relaxed and centered after just one 3-5 minute session. Practice 2-3 times daily for best results.
Q: When should I practice box breathing?
A: Box breathing is beneficial anytime you need to reduce stress or improve focus: during work breaks, before important meetings, when feeling anxious, before sleep, or after waking. The app's background mode allows you to practice while working or multitasking - audio cues will guide you through each breathing phase.
Q: Why doesn't iOS have vibration?
A: iOS Safari prohibits web pages from calling the Vibration API for system security. You can use audio cues as an alternative, or use the native iOS Breath app for full Haptic Feedback experience.
Q: Can the app run in the background?
A: Partially supported. Mobile browsers limit background tab activity. Best to install as PWA and keep app in foreground during use. Desktop version has better background support.
Q: How to adjust breathing rhythm?
A: Tap the gear icon at bottom to enter settings, drag the "Breathing Cycle Duration" slider to customize. Beginners should start with 8-10 seconds, then try longer cycles when comfortable.
Q: Does the app need internet connection?
A: First visit requires internet to load resources. After that, Service Worker caches all files for complete offline use. Install as PWA for best offline experience.
Q: What are the benefits of breathing exercises?
A: Regular breathing practice can: ① Reduce stress and anxiety ② Improve focus ③ Enhance sleep quality ④ Lower blood pressure ⑤ Calm emotions. Recommended: 2-3 times daily, 3-5 minutes per session.
Q: Will my data be collected?
A: No. The app runs completely locally, collects no user data, sends no network requests (except loading resources), and all settings are stored only on your device. Completely private and secure.

💡 Usage Tips

🌅 Best Times

After waking, before lunch break, or before bed are ideal practice times. Helps wake the body, relax the mind, and improve sleep.

🪑 Comfortable Posture

Sit in a comfortable chair with straight back and feet flat on floor. Can also cross-legged or lying down - find what's most comfortable.

👁️ Close Eyes

Recommend closing eyes during practice, relying on vibration and sound cues. Makes it easier to eliminate distractions and focus on breathing.

📱 Background Mode

After mastering the rhythm, you can put the app in the background. Audio beeps will guide you through phase transitions while you work or multitask.

🎯 Gradual Progress

Beginners start with 8s cycle, 3 minute sessions. Gradually increase to 12s cycle, 5-10 minutes when comfortable. Don't rush.

🔇 Quiet Environment

Choose quiet, undisturbed environment for practice. Can enable airplane mode or do not disturb to avoid notification interruptions.

📅 Build Habit

Practice at fixed times daily to form a habit. Even just 3 minutes, consistency shows significant results.

🔧 Technical Implementation

Breath is built with modern web technology stack, fully utilizing the latest browser APIs to provide near-native app experience.

Core Technologies

Design Features

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