Apps Like O2CO2 for iPhone and iPad
O2CO2 screenshots
Ranked alternatives
Showing 1–20 of 1,000 ranked alternatives.


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.


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.


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.

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.



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.




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.




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.

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.

How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.