Best O2 alternatives: apps like O2 - Breathing exercises

10+ similar apps compared and reviewed

4.7 avg rating

10 free apps

Updated October 2026

O2 - Breathing exercises

Gootra, Inc.

💪 Health & Fitness

Whether you want more options like O2 or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to O2

#1

Breah - breathing exercises by Squarecrowd Apps, LLC

Breathwork based on science

Editor's Choice

💪 Health & Fitness

4.9(34 ratings)

FreeIn-App Purchases

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This app offers a variety of science-backed breathing exercises to improve well-being. It provides customizable sessions with guided instructions, soundscapes, and reminders to help users build a consistent practice. Users can explore exercises based on goals or therapeutic needs, with detailed descriptions and research references available.

#2

Breathing Exercises * by Steve Veloudos

Unwinding Anxiety

Strong Contender

💪 Health & Fitness

4.5(60 ratings)

FreeIn-App Purchases

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This app guides you through timed breathing exercises to help manage stress and promote relaxation. It offers pre-set intervals like Box Breathing and 478 Breathing, along with customizable options for personalized practice.

#3

Breathing Exercises by Breeeze by At team LLC

Breathwork for Anxiety Relief

Worth Considering

💪 Health & Fitness

4.3(36 ratings)

FreeIn-App Purchases

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Discover simple breathing techniques to improve your mental and physical well-being. Reduce anxiety, enhance focus, and sleep better with guided exercises. Just a few minutes daily can help you achieve a more balanced and centered state.

More apps like O2

Breathing Exercises: Breathe+

Breathing Exercises: Breathe+

Breathing Exercises: Breathe+

Guided Patterns Box Breath 478

This app offers guided breathing patterns for relaxation, meditation, and breath training. Visualize your breath with customizable inhale, exhale, and hold times. Track your progress and integrate with HealthKit for mindful minutes.

Full screen breath visualizationGuided and free-form sessionsCustomizable inhale/exhale/hold times

💪 Health & Fitness

free with in-app purchases

Compare with O2

Box Breathing - Float

Box Breathing - Float

Box Breathing - Float

Buteyko exercises

Enhance your well-being with guided breathwork exercises. This app offers personalized sessions based on a breathing test, with categories for calm, sleep, focus, and energy. Experience immersive audio, haptic feedback, and sound cues for stress reduction and improved performance.

Personalized breathing testExercise categories (Calm, Sleep, Focus, Energize)Audio guide and sound cues

💪 Health & Fitness

free with in-app purchases

Compare with O2

Awesome Breathing: Pacer Timer

Awesome Breathing: Pacer Timer

Awesome Breathing: Pacer Timer

Breathwork, sleep calm anxiety

This app guides and visualizes your breathing patterns to promote calm, reduce stress, and improve sleep. It offers customizable breathing exercises and pre-set programs for meditation and mindfulness.

Customizable breathing patternsPre-set breathing programsGuided vocal and tone cues

💪 Health & Fitness

Compare with O2

Lungy: Breathing Exercises

Lungy: Breathing Exercises

Lungy: Breathing Exercises

Anxiety, Panic & ADHD Relief

This app uses your breath to create interactive visuals, promoting calmness and relaxation. Developed by doctors, it offers personalized feedback and exercises to improve sleep and reduce stress. Enjoy offline access and robust privacy features.

Real-time breath recognitionInteractive breath visualizationDoctor-developed exercises

💪 Health & Fitness

Compare with O2

Breathing Zone: Breathwork

Breathing Zone: Breathwork

Breathing Zone: Breathwork

Calm anxiety, stress & sleep

Reduce stress, improve mood, and feel more relaxed and energized with guided breathing exercises. This app uses scientifically based therapeutic techniques to help lower heart rate and potentially blood pressure. Discover mindfulness one breath at a time.

Guided breathing exercisesStress reductionMood improvement

💪 Health & Fitness

Compare with O2

Mindbreath : Breathing & HRV

Mindbreath : Breathing & HRV

Mindbreath : Breathing & HRV

Breathing exercises & HRV

This app offers guided breathing exercises and an integrated heart rate variability (HRV) monitor to help users manage stress, improve focus, and regulate blood pressure. It provides advanced programs for lung capacity, immunity, and habit formation, with detailed HRV analysis for health monitoring.

Guided breathing exercisesHRV heart rate monitorStress and anxiety relief

💪 Health & Fitness

free with in-app purchases

Compare with O2

Simple guided breathing

This app offers guided breathing exercises for daily relaxation and breath training. Simply select a technique and follow the on-screen prompts to improve your well-being.

Guided breathing exercisesDaily relaxationBreath training

💪 Health & Fitness

Compare with O2