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 261–280 of 1,000 ranked alternatives.

  1. Breathe - unwind and relax app icon

    Breathe - unwind and relax

    Denis Tokarev

    , control, and

    Track breathing patterns with customizable exercises. Adjust inhale, hold, and exhale durations. Use 4-7-8 technique for relaxation. Save and replay sessions. Share progress with others.

    ★ 4.49 ratingsHealth & FitnessFreeData updated 2026-09-06
  2. in+hale app icon

    in+hale

    NND Studio LLC

    Breathe, meditate, and customize sessions

    Guided breathing sessions help reduce stress and improve focus. Users can customize session duration and breathing patterns. Track progress over time with detailed insights. Receive reminders and notifications for regular practice.

    ★ 5.011 ratingsHealth & FitnessFreeData updated 2026-09-06

How we rank alternatives

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