Life & fun · alternatives · 2026

24 alternatives to PeakO₂: Stamina & Breath Guide

Endurance, Lung Health & Focus

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Apex Breath▲130

   Focused breath work to increase lung capacity + performance

   2025 · apps.apple.com · its alternatives →

2. 2
   PeakRoutine▲278

   Personalized health coaching powered by your biomarkers

   Jun 2026 · peakroutinehealth.com · its alternatives →

3. 3
   PeakForm▲64

   Perfect your exercise form with expert advice

   2016 · apps.apple.com · its alternatives →

4. 4
   Breathly▲110

   Open-source breath training and relaxation app

   2021 · breathly.app · its alternatives →

5. 5
   BREATHE+▲123

   Relaxation and breath training

   2017 · dynamicappdesign.com · its alternatives →

6. 6
   RESPIRA▲70

   Symphonic breathwork app

   2023 · respira.app · its alternatives →

7. 7
   Lungy▲92

   Next-gen breathing exercises that respond to every breath

   2022 · lungy.app · its alternatives →

8. 8
   breathin▲73

   Breathing exercises for everyone

   2021 · breathin.app · its alternatives →

9. 9
   WOD▲286

   A beautiful HIIT workout app for people on the go

   2017 · its alternatives →

10. 10
    DailyBreathing▲76

    Breathwork

    2023 · apps.apple.com · its alternatives →

11. 11
    Streaks Workout 2.0▲147

    The personal trainer that you actually want to use.

    2016 · its alternatives →

12. 12
    PeakWatch▲211

    AI Personal Trainer

    2024 · peakwatch.co · its alternatives →

13. 13
    Breathe V2▲88

    100% free breathing app for relaxation & stress relief

    2021 · play.google.com · its alternatives →

14. 14
    Breathonics by Silentmode▲14

    Rest, Nap, Focus, Energy, it's all at your fingertips.

    2020 · its alternatives →

15. 15
    Breathwork▲7

    Breathe Hold & Stamina Training. Get rid of Apnea!

    2025 · play.google.com · its alternatives →

16. 16
    Peak▲173

    Your personal fitness dashboard

    2023 · sneakpeak.app · its alternatives →

17. 17
    Breathwrk▲100

    Learn and master breathwork with guided breathing exercises

    2020 · breathwrk.com · its alternatives →

18. 18
    O2 - Breath Hold Trainer▲5

    Train your breath holds with science-based apnea tables

    Feb 2026 · apps.apple.com · its alternatives →

19. 19
    Unwind 2▲172

    Deep mindful breathing exercises from your phone and watch.

    2020 · apps.apple.com · its alternatives →

20. 20
    Keelo▲164

    Short, high intensity workouts with instructional videos

    2015 · keelo.com · its alternatives →

21. 21
    Runo 2.0▲132

    I built Runo after years of inconsistent marathon training. GPS watches tell you your pace AFTER it's too late. So I made a simple metronome that plays a beat at your target cadence (steps per minute). New in 2.0: Apple Watch haptics (run to the beat without headphones), Strava sync, and social features. 4.7 on App Store, 10k+ runners. Would love feedback from the HN community.

    Jan 2026 · runoapp.com · its alternatives →

22. 22
    AsthmaMD▲74

    Track your asthma symptoms and peak flow measurements

    2015 · asthmamd.org · its alternatives →

23. 23
    Breathe▲79

    Breathing exercises to focus and calm down.

    2022 · breathe.so · its alternatives →

24. 24
    BreatheSonic▲113

    Use music to improve your breathing

    2019 · apps.apple.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →