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 21–40 of 1,000 ranked alternatives.

  1. Breathing Exercises: Breathe+ app icon

    Breathing Exercises: Breathe+

    Dynamic App Design LLC

    Breathe, track, and calm your mind

    Visualize with full-screen animations. Adjust inhale and exhale durations from 1-32 seconds. Set guided sessions from 1-60 minutes or use free-form lengths. Track breath cycles and pause sessions manually.

    ★ 4.73,439 ratingsHealth & FitnessFreeData updated 2026-09-11
  2. Hüff: Breathwork app icon

    Hüff: Breathwork

    Eighty Four Degrees Limited

    Breathe deeply and meditate guided

    Guide users through breathing exercises to reduce stress and enhance focus. Track session duration and breathing patterns. Receive detailed summaries after each session. Adjust breathing techniques based on personal goals and preferences.

    ★ 4.8339 ratingsHealth & FitnessFreeData updated 2026-09-06
  1. Breathe • Calm down • Meditate app icon

    Breathe • Calm down • Meditate

    Joachim Tobias Nohl

    , customize,

    Set breathing rhythms to activate the parasympathetic nervous system. Customize meditation timers and create personalized breathing patterns. Track progress and build resilience through regular practice.

    ★ 4.8476 ratingsHealth & FitnessFreeData updated 2026-09-06
  2. Zen: Guided Meditation & Sleep app icon

    Zen: Guided Meditation & Sleep

    MOVENEXT SERVICOS DE INTERNET LTDA. - ME

    Relax with meditations and breathing exercises

    Access meditations, stories, and breathing exercises to reduce stress and anxiety. Practice yoga, listen to music, and track progress toward wellness goals.

    ★ 4.72,528 ratingsHealth & FitnessFreeData updated 2026-09-10
  3. Art of Living Official App app icon

    Art of Living Official App

    Art of Living Foundation

    Meditate, breathe, and reflect daily

    Access guided meditations, breathing exercises, and yoga sessions for stress relief, focus, and emotional balance. Track progress with daily wisdom and mood-specific content. Sync with Apple Health to monitor well-being metrics.

    ★ 4.5275 ratingsHealth & FitnessFreeData updated 2026-09-06
  4. Pranayama Kapalabhati Prana27 app icon

    Pranayama Kapalabhati Prana27

    TNX Apps UG (haftungsbeschraenkt)

    Breathe deeply and relax

    Offers guided breathing exercises including and Sama Vritti. Users can select sessions based on duration. Features include calming music, sleep aids, and meditation guidance for stress reduction. Track progress and set relaxation goals.

    ★ 4.5100 ratingsHealth & FitnessFreeData updated 2026-09-06
  5. Nordic Flow: Breathwork app icon

    Nordic Flow: Breathwork

    Nordic Flow, Inc.

    Meditate, breathe, and move daily

    Practice mindfulness with guided breathing exercises, meditation sessions, and movement routines. Access personalized plans to reduce stress and anxiety. Track progress and integrate cold plunging techniques for holistic wellness.

    ★ 4.539 ratingsHealth & FitnessFreeData updated 2026-09-06
  6. Deep Breathing Exercises app icon

    Deep Breathing Exercises

    Thach Nguyen Trong

    Breathe deeply and reset your focus

    Help reduce stress hormones and improve focus. Users can visualize breath cycles with full-screen animations. Track patterns and set custom session durations. Save progress and review session history for consistency.

    ★ 4.610 ratingsHealth & FitnessFreeData updated 2026-09-06
  7. Sym Breathing: HRV Coherence app icon

    Sym Breathing: HRV Coherence

    Daniel Lubbers

    Breathe in, breathe out, stay calm

    Follow a 5.5-second inhale/exhale rhythm to reduce stress and improve heart rate variability. Tap the breathing sphere for guided sessions. Track progress with session history and adjust breathing patterns manually.

    ★ 5.029 ratingsHealth & FitnessFreeData updated 2026-09-06
  8. Breath Ball: Breathing & HRV app icon

    Breath Ball: Breathing & HRV

    Michael Holl

    Breathe deeply and follow guided sessions

    Guide users through personalized exercises to reduce stress and anxiety. Track progress over time with detailed session logs. Adjust patterns based on individual preferences and goals. Include guided sessions for relaxation and mindfulness.

    ★ 4.8288 ratingsHealth & FitnessFreeData updated 2026-09-06
  9. STAmina Apnea Trainer app icon

    STAmina Apnea Trainer

    Squarecrowd Apps SIA

    Train breath control and mental focus underwater

    Track static sessions with customizable tables and lung capacity exercises. Monitor breath-hold duration and progress over time. Set reminders and view detailed performance analytics. Sync data across devices for consistent training.

    ★ 4.95,437 ratingsSportsFreeData updated 2026-09-09
  10. Kardia Deep Breathing app icon

    Kardia Deep Breathing

    Olivier Tache

    Breathe with guided rhythms and calming visuals

    Guide with guided exercises and calming sounds. Track heart rate variations during sessions. Use for stress relief, anxiety management, and improving sleep quality. Includes paced techniques and a visual sphere for focus.

    ★ 4.8130 ratingsHealth & FitnessFreeData updated 2026-09-06
  11. no.Diet app icon

    no.Diet

    WEST FEES UAB

    Plan meals based on your goals

    Create a personalized nutrition plan based on individual goals and body type. Track meals, set dietary preferences, and receive recipe suggestions aligned with Mediterranean cuisine.

    ★ 4.32,554 ratingsHealth & FitnessFreeData updated 2026-09-06
  12. Breathly app icon

    Breathly

    Matteo Mazzarolo

    Breathe guided and track progress

    Pause for a minute and try . Choose from guided breathing techniques to focus on deep breathing exercises. Track progress over time and adjust session lengths as needed. No ads or in- purchases.

    ★ 5.090 ratingsHealth & FitnessFreeData updated 2026-09-06
  13. BreatheIn: Calm Breathing app icon

    BreatheIn: Calm Breathing

    Dmitry Mashkin

    Breathe deeply and reset your mind

    Practice guided exercises to reduce stress and increase focus. Track progress over time with session history. Set custom patterns and receive reminders to breathe regularly.

    ★ 4.426 ratingsHealth & Fitness$0.49Data updated 2026-09-06
  14. The Breathing App: Calm Daily app icon

    The Breathing App: Calm Daily

    Breathing App, LLC

    Breathe deeply and your mind

    Guide with 5–7 breaths per minute to reduce stress and improve focus. Track progress over time. Set reminders for sessions. Sync with Apple Health to monitor wellness metrics.

    ★ 4.81,036 ratingsHealth & FitnessFreeData updated 2026-09-06
  15. Pulse - Breathing & Meditation app icon

    Pulse - Breathing & Meditation

    A2G3 Media inc

    Breathe deeply and relax quickly

    Guided exercises help reduce stress and promote relaxation. Calming visualizations aid in falling asleep faster. Tracks patterns and provides progress feedback. Includes programs for stress relief and sleep improvement.

    ★ 4.3580 ratingsHealth & FitnessFreeData updated 2026-09-06

How we rank alternatives

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