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Life & fun · alternatives · 2026

24 alternatives to Shark Apnea Trainer

Freediving breathing exercises and tables

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Shark Apnea Trainer launched in 2021; newer entries below may have overtaken it.

  1. 1

    Improve breath-hold and lung capacity with CO2 & O2 tables.

    2025 · apps.apple.com · its alternatives →

  2. 2

    Breathe Hold & Stamina Training. Get rid of Apnea!

    2025 · play.google.com · its alternatives →

  3. 3

    Train your breath holds with science-based apnea tables

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

  4. 4

    Focused breath work to increase lung capacity + performance

    2025 · apps.apple.com · its alternatives →

  5. 5

    Hey HN! Some more info: I’m an NHS doctor and the founder of Pi-A (https://www.pi-a.io) which developed Lungy (https://www.lungy.app). Lungy is an app (iOS only for now) that responds to breathing in real-time and was designed to make breathing exercises more engaging and beneficial to do. It hopefully has many aspects of interest to the HN community – real-time fluid, cloth and soft body sims running on the phone’s GPU. My background is as a junior surgical trainee and I started building Lungy in 2020 during the first COVID lockdown in London. During COVID, there were…

    2023 · lungy.app · its alternatives →

  6. 6

    breathe is a (distraction-free) peripheral breath trainer, it helps you breathe correctly so you can stay calm and focus on what matters. - GitHub - tryhardfifi/breathe: breathe is a (distraction-free) peripheral breath trainer, it helps you breathe correctly so you can stay calm and focus on what m

    2020 · github.com · its alternatives →

  7. 7

    Ai apnea training for freediving

    2025 · freediving.web.app · its alternatives →

  8. 8MT
  9. 9

    Not AI-powered. Built for my wife. Simple & Science-backed.

    2025 · apps.apple.com · its alternatives →

  10. 10
    Lungy▲92

    Next-gen breathing exercises that respond to every breath

    2022 · lungy.app · its alternatives →

  11. 11

    Breathing exercises for everyone

    2021 · breathin.app · its alternatives →

  12. 12

    Turn your watch into a complete breath training system.

    Jun 2026 · apps-developer.garmin.com · its alternatives →

  13. 13
    Breathly▲110

    Open-source breath training and relaxation app

    2021 · breathly.app · its alternatives →

  14. 14

    AI-guided breathing trainer with companion app

    May 2026 · oumua.me · its alternatives →

  15. 15

    Through controlled breathing it is possible to regulate your body's stress response. I've built an app to measure and train this effect with a Polar H10 Heart Rate monitor. With every breath you take, you can set the pace of your breathing rate, measure your breathing control with the chest accelerometer, and see how heart rate variability responds.

    2023 · github.com · its alternatives →

  16. 16

    Learn to hold your breath for 1,2,3 or 4 plus minutes!

    2024 · apps.apple.com · its alternatives →

  17. 17

    Easy CPR training & simulation using only an iPhone

    Nov 2025 · forres.tech · its alternatives →

  18. 18
    Breathwrk▲100

    Learn and master breathwork with guided breathing exercises

    2020 · breathwrk.com · its alternatives →

  19. 19

    Improve your reaction times

    2019 · apps.apple.com · its alternatives →

  20. 20

    Hey HN! I’m an NHS doctor and the founder of Pia (https://www.piahealth.co) which developed Lungy (https://www.lungy.app). Lungy is an iOS app that responds to breathing in real-time and was designed to make breathing exercises more engaging and beneficial to do. It’s been two years since Lungy launched (here’s the original ShowHN: https://news.ycombinator.com/item?id=34534615) and it's had a huge update and complete redesign. We rebuilt the whole app, and added a real-time 3D soft body solver which gives some really cool interactions like blobs /…

    2025 · apps.apple.com · its alternatives →

  21. 21
    Squair▲162

    I built Squair because my phone was giving me anxiety - and it was also the only thing in my pocket when anxiety hit. The problem: 4 cups of coffee just to focus. Then the anxiety kicks in. Chest tight. Racing thoughts. Scrolling reels to "calm down" made it worse. I Googled "anxiety relief" at 2am and found box breathing — same technique Navy SEALs use in combat. First time I tried it, I felt the difference within 2 minutes. No crash. No pills. Just breathing. So I built an app around it. 6 months. Solo dev with a full-time job. 112 builds. 2 App Store rejections. Finally live. What it…

    Jan 2026 · squair.app · its alternatives →

  22. 22
    Breathhh▲204

    Personal mental shield against stress and anxiety

    2022 · breathhh.app · its alternatives →

  23. 23

    Train any breathing exercise & posture with sensor feedback

    2023 · prana.co · its alternatives →

  24. 24

    Yoga breathing exercises, pranayamas

    2023 · universalbreath.app · its alternatives →

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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 →