O2CO2 app icon

Apps Like O2CO2 for iPhone and iPad

by Les Entrecodeurs★ 5.02 ratingsHealth & FitnessFreeData updated 2026-09-06

O2CO2 screenshots

Ranked alternatives

Showing 61–80 of 1,000 ranked alternatives.

  1. Meditation Oasis: Simply Being app icon

    Meditation Oasis: Simply Being

    Meditation Oasis

    Meditate with guided sessions

    Learn techniques with guided sessions led by Mary Maddux. Track progress and set goals. Access a library of meditations for stress relief, focus, and relaxation. Sync with Apple Health to monitor mindfulness activity.

    ★ 4.72,273 ratingsHealth & FitnessFreeData updated 2026-09-08
  2. BreathReps app icon

    BreathReps

    Matthew Stephen Iczkowski

    ★ 0.00 ratingsHealth & FitnessFreeData updated 2026-09-06
  1. Relax Lite: Stress and Anxiety Relief app icon

    Relax Lite: Stress and Anxiety Relief

    Saagara LLC

    Breathe deeply and meditate quickly

    Guided breathing exercises and meditation sessions with calming music. Users can select sessions for , track progress, and set reminders. Syncs with wearable devices to monitor heart rate and breathing patterns.

    ★ 4.7349 ratingsHealth & FitnessFreeData updated 2026-09-08
  2. NTX Apnea app icon

    NTX Apnea

    Mariusz Kociubinski

    Train breathhold, track progress, refine technique

    Track breathhold progress with customized exercises for dive reflex, CO2 tolerance, and stress management. Monitor heart rate and depth during sessions. Access expert audio and video guidance for each exercise.

    ★ 4.962 ratingsHealth & FitnessFreeData updated 2026-09-06
  3. CalmCanvas:Meditation,Relaxing app icon

    CalmCanvas:Meditation,Relaxing

    APPS BAY LIMITED

    Play ambient sounds for meditation

    Play ambient nature sounds and relaxing music for meditation, breathing, yoga, and sleep. Combine multiple tracks to create custom soundscapes. Use focus music for concentration and motivation during workouts.

    ★ 4.8149 ratingsHealth & FitnessFreeData updated 2026-09-06
  4. ZenBreath : Find your rythm app icon

    ZenBreath : Find your rythm

    Maxime Tant

    Breathe deeply and adjust duration

    Guides users through breathing exercises to reduce stress and anxiety. It offers cardiac coherence sessions with adjustable duration and cycle counts. Users can start, pause, and stop sessions. The provides visual cues for inhalation and exhalation.

    ★ 4.6109 ratingsHealth & FitnessFreeData updated 2026-09-06
  5. M.T.O. Tamarkoz Meditation app icon

    M.T.O. Tamarkoz Meditation

    M.T.O. Tamarkoz Association

    Meditate, focus, and relax anytime

    Practice guided and relaxation techniques to reduce stress and improve focus. Track progress with daily sessions and breathing exercises. Access mindfulness activities for better sleep and emotional balance.

    ★ 5.0148 ratingsHealth & FitnessFreeData updated 2026-09-06
  6. Robox Relax - Breathe & Earn app icon

    Robox Relax - Breathe & Earn

    ROBOXONE OU

    To and track progress

    Guide breathing sessions with a tracker and offer modes for relaxation, focus, and stress reduction. crypto rewards through breathing exercises. Share progress and support others in finding calm.

    ★ 4.627 ratingsHealth & FitnessFreeData updated 2026-09-06

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.