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 1–20 of 1,000 ranked alternatives.

  1. Wim Hof Method: Breathwork app icon

    Wim Hof Method: Breathwork

    WHM SERVICES, UNIPESSOAL LDA

    Breathe, expose, and focus daily

    Guide daily breathing exercises, cold exposure, and mind-powering practices. Track progress with session logs and recovery metrics. Set reminders for routines. Sync with wearable devices to monitor heart rate and sleep patterns.

    ★ 4.913,198 ratingsHealth & FitnessFreeData updated 2026-09-09
  1. Balance: Meditation & Sleep app icon

    Balance: Meditation & Sleep

    Elevate Labs, LLC

    Meditate daily and track progress

    Track stress and patterns with daily guided meditations tailored to your preferences. Answer questions to refine your practice. Access a library of audio sessions for different goals. Adjust sessions based on feedback over time.

    ★ 4.9118,298 ratingsHealth & FitnessFreeData updated 2026-09-06
  2. Moshi Kids: Sleep, Relax, Play app icon

    Moshi Kids: Sleep, Relax, Play

    Mind Candy

    Read bedtime stories and sleep sounds

    Interactive bedtime stories with original audio content. Listen to sleep sounds, music, and white noise. Set sleep timers and track sleep duration. Sync with Monsters' themed worlds. Adjust volume and brightness for nighttime use.

    ★ 4.767,924 ratingsBookFreeData updated 2026-09-06
  3. Inner Balance app icon

    Inner Balance

    HeartMath LLC

    Sync heart rate and manage emotions

    Monitor heart rhythms through a connected sensor. Guide users in breathing exercises to reduce stress. Provide real-time feedback on emotional states. Track progress over time with detailed reports. Sync data across devices for consistent monitoring.

    ★ 4.817,917 ratingsHealth & FitnessFreeData updated 2026-09-08
  4. HeartRate+ Coherence PRO app icon

    HeartRate+ Coherence PRO

    SoftArea srl

    Track heart rate during breathing exercises

    Monitor heart rate during guided slow breathing exercises to assess breathing effectiveness. Track progress over time. Receive feedback on breathing patterns. Set reminders for regular practice.

    ★ 4.1112 ratingsHealth & FitnessFreeData updated 2026-09-06
  5. Mindllama Breathe Sleep Focus app icon

    Mindllama Breathe Sleep Focus

    Llama Luna Apps Inc

    In, out, track sessions

    In... out... allows users to access a 5-breath session directly from the home screen.

    ★ 4.98,477 ratingsHealth & FitnessFreeData updated 2026-09-06
  6. Open: Breathwork + Meditation app icon

    Open: Breathwork + Meditation

    Open Inc.

    Meditate, reflect, and grow mindfully

    Regulate your nervous system through guided , , and movement exercises. Track progress with customizable goals and daily check-ins. Sync sessions with wearable devices and access a library of mindfulness practices designed by experts.

    ★ 4.913,591 ratingsHealth & FitnessFreeData updated 2026-09-06
  7. HarmLess: Self Harm Tracker app icon

    HarmLess: Self Harm Tracker

    Wired Betterment

    Track progress, set goals, and reflect daily

    Track emotional triggers and manage urges with a personalized toolkit. Set daily goals and receive guided exercises. Log progress and access coping strategies. Connect with support communities and receive reminders for -care activities.

    ★ 4.88,292 ratingsHealth & FitnessFreeData updated 2026-09-06

How we rank alternatives

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