# STAmina Apnea Trainer — user reviews > 355 indexed App Store user reviews of STAmina Apnea Trainer by Squarecrowd Apps, LLC, rated 4.90/5 from 5,438 ratings. - Source: https://appshunter.io/ios/app/stamina-apnea-trainer/id994874491/reviews - App overview in markdown: https://appshunter.io/ios/app/stamina-apnea-trainer/id994874491.md - Rating breakdown: 5★ 5,158 · 4★ 242 · 3★ 27 · 2★ 4 · 1★ 7 ## What do users think of STAmina Apnea Trainer? Overall sentiment: positive **Pros** - 🚀 Easy to use - 👍 Helps improve breath hold - 🚀 Customizable tables - 👍 Tracks progress - 👍 Integrates with devices - 👍 Responsive customer support **Cons** - 🐛 Glitchy UI when switching devices - 🐛 Unreliable Apple Watch sync - 🐛 Buggy watch app - 🐛 Laggy sync between watch and phone - 🐛 Haptic feedback issues - 🐛 Crashes and freezes **Commonly reported bugs** - Apple Watch app doesn't synchronize reliably - Watch app missing features of phone app - Random beeps and haptics not selected in settings - App crashes when run from synced phone - HRV not recorded in Apple Health **Most requested features** - Recommended training regimens based on goals - Voice announcements of passing time - Ability to pause/resume rest intervals - Apple Watch app with same functionality as phone app - Integration with more pulse oximeters - Ability to edit personal records - Progress tracking graphs - More guided tutorials and onboarding ## Newest reviews (17 of 355) ### 4/5 — Can’t even set up a table *2026-04-28, version 8.1.6* I used this app on my other phone. Just the basics. installed it quickly on another, some new version and it keeps just pop up error msg when trying to set a table. It generated one, but even that I can’t modify. Just wasted 30 mins repeating to put in the numbers, thanks a lot :/ ### 3/5 — doesn’t work *2026-03-07, version 8.0.4* the Watch app doesn’t work; it recognize my tables but inside it shows 0:00 - 0:00 time interval so it doesn’t start. ### 3/5 — Nice app *2025-11-12, version 7.6.4* Been using this for a few weeks. It’s pretty nice. Pairs to my garmin watch for heart rate. Things I don’t like about the app: The UI is very glitchy when switching connected devices. The popup window to choose my watch or a pulse Oximeter slows the app down, and the menu to choose devices is visually glitchy. If you only use one device, it’s not really a problem. But hope the dev can fix this. It would also be nice if it had recommended training regimens based on my goals… for example, if I want to get my static breath hold to 4 minutes, what should I focus on and how often? It’s also super annoying to delete the default comment text every time I want to leave a comment after doing tables. Little things like this would make the app feel polished. ### 3/5 — Nice app *2025-11-03* Been using this for a few weeks. It’s pretty nice. Pairs to my garmin watch for heart rate. Only thing I don’t like about the app is the UI is very glitchy when switching connected devices. The popup window to choose my watch or a pulse Oximeter slows the app down, and the menu to choose devices is visually glitchy. If you only use one device, it’s not really a problem. But hope the dev can fix this. It would also be nice if it had recommended training regimens based on my goals… for example, if I want to get my static breath hold to 4 minutes, what should I focus on and how often? ### 3/5 — Easy bug fixes *2025-11-01, version 7.6.4* Apple Watch app doesn’t synchronize reliably ever, sometimes it takes 20 minutes sometimes it doesn’t work. Also the watch app doesn’t have the same tables as the phone app which is really brutal when you realize that halfway through the set. Also seemingly random beeps and haptics like 10 seconds after you start hold that aren’t selected in the settings. Good app otherwise. ### 2/5 — Pessimo servizio clienti *2025-10-24, version 7.6.4* L’app non è male ma le integrazioni con garmin vanno male. Ho aperto un ticket al supporto sia sulla mail indicata nell’app che in quella indicata sul sito e non ho MAI ricevuto riscontro. Aspetto ancora qualche settimana poi disdico l’abbonamento. Poco serio come modo di fare ### 4/5 — AMAZING! *2025-10-22, version 7.6.4* Amazing it helps me so much ### 2/5 — No HRV and other issues *2025-10-21, version 7.6.4* Would be great if not: (!) HRV is not recorded in Apple Health app - it is a fundamental metric (!) Haptic feedback at 1 min fails (!) If screen auto turns off app does not stay on screen and quick tap is impossible (!) Buggy watch app that crashes often (!) If app is run from the synced phone and watch does not record heartbeat (!) Laggy sync between watch and phone (!) UX in general could be more streamlined (!) Needs simple voice announcer of passing time with flexible intervals. [My device: Apple Watch Ultra] ### 3/5 — Some issues *2025-10-20, version 7.6.4* I like the idea but… For Apple Watch Ultra 1 (1) Haptic feedback at 1 min fails (2) If screen auto turns off app does not stay on screen and tap is impossible (3) Buggy app that crashes (4) If run app is run from the synced phone and watch does not record heartbeat (5)Laggy sync between watch and phone (6) UX in general could be more streamlined (7) Needs simple voice announcer of passing time flexible intervals ### 5/5 — Muy útil *2025-09-25, version 7.6.4* La uso para surf ### 5/5 — Great app *2025-07-29, version 7.6.4* Simple, effective, great!! ### 5/5 — O2 tables are harder than CO2 tables *2025-07-26, version 7.6.4* It helps ### 5/5 — Eccellente *2025-07-25, version 7.6.4* Perfetto per tenere conto di tutti i dati ### 5/5 — Stamina *2025-07-24, version 7.6.1* great app! only thing that would male it even better if the tables automatically changed according to the change of your pb breathhold.. right now it only generated the breathhold tables at the very start when i downloaded the app ### 5/5 — Good app *2025-07-20, version 7.6.1* Works well and generates plans for you. Progressing well. ### 5/5 — My time useing this app *2025-07-14, version 7.6.1* Amazing holding my breath this app was so helpful 5 stars I would definitely recommend. ### 5/5 — Free *2025-07-11, version 7.6.1* It is free and works good wish it told you more helpful stuff but other then that it is is grate. ## Most critical reviews (10 lowest-rated) ### 1/5 — Frustrating *2026-06-04, version 8.1.8* As a free user this is really annoying. The popup to pay pops up every single time I open it. Also the volume is not adjustable and that’s frustrating too. I’m deleting it for an app that isn’t like this. ### 1/5 — Annoying pop up *2026-04-08, version 8.0.10* The subscription pop up is so incredibly annoying. It should not pop up every single time I open the app. It made me want to delete this and use a different app. ### 1/5 — Apple Watch doesn’t work *2025-07-10, version 7.6.1* Disappointed this app on iPhone doesn’t support Apple Watch as a companion device and use it’s sensors ### 1/5 — I’m love this app *2025-07-03, version 7.6.1* Best app ever well made no nonsense great. Has helped me train apnea for nearly 6 years now I’ve never felt better ### 1/5 — Scammy *2025-04-30, version 7.5.1* Customer support ignored me so I basically wasted my money and got nothing out of it. ### 1/5 — Bug Bug Bug *2025-01-04, version 7.3.0* J’adore l’application mais elle bug tout le temps. Je mets 1 étoile pour alerter les développeurs et corriger car ce n’est pas normal que toutes les 2 minutes l’application se ferme toute seule. ### 1/5 — Oxygen not work *2023-11-24, version 6.5.9* Deceptive in-app purchase, link after purchase, Apple Watch has no blood oxygen saturation ### 1/5 — Application payée mais qui perd peu à peu ses fonctionnalités *2023-08-10* Application qui était payante et excellente. Mais elle est passée en mode gratuit + abonnement et des fonctionnalités de base disparaissent peu à peu. Très décevant **Developer response:** Bonjour, si vous avez acheté l'application, vous êtes éligible pour toutes les fonctionnalités que vous aviez. Si quelque chose ne fonctionne pas pour vous, veuillez me contacter par e-mail. Je n'enlève jamais aucune fonctionnalité et je ne réduis pas le niveau de base. ### 1/5 — Costs money *2023-06-15, version 6.3.6* Free to get, costs money to open ### 1/5 — Why? *2023-04-28, version 6.1.1* I bought the app last year on both google and apple and now the subscription has disappeared! ## Most praised reviews (10 highest-rated) ### 5/5 — Für mich die beste Apnea App, die es gibt! *2026-04-27* Ich nutze die STAmina App nun schon seit langer Zeit und kann ehrlich sagen: Für mich ist sie die beste App, die es im Bereich Apnoe-Training gibt. Was sie so besonders macht, ist die Kombination aus durchdachter Funktionalität, Klarheit und echter Praxisnähe. Egal ob CO₂- oder O₂-Tabellen, statisches Training oder einfach nur das strukturierte Arbeiten an der eigenen Atemkontrolle, die App liefert genau das, was man braucht, ohne unnötigen Schnickschnack. Für mich persönlich hat sie einen noch größeren Stellenwert, weil ich selbst bei der Übersetzung mitwirken durfte. Zu sehen, wie sich die App entwickelt hat und wie vielen Menschen sie inzwischen beim Training hilft, macht mich ehrlich stolz. Aber unabhängig davon: Die STAmina App ist für mich ein echtes Werkzeug. Sie unterstützt mich zuverlässig in meinem Training, hilft mir dranzubleiben und mich weiterzuentwickeln. Wer sich ernsthaft mit Apnoe beschäftigt – egal ob Einsteiger oder Fortgeschrittener – kommt an dieser App eigentlich nicht vorbei. ### 5/5 — Simple but very effective! *2026-02-14, version 7.6.4* The app is just great! You don’t need the paid version but I bought it just to encourage the developers! ### 5/5 — Easy to use *2026-02-09, version 7.6.4* This is a great app that offers a lot of value for free. Custom O2 and CO2 tables are very easy to use. The structure of the workouts is very helpful and encourages progression. ### 5/5 — Отлично! *2026-02-02* Очень хорошее приложение. Без лишних наворотов, полностью выполняет свою функцию! ### 5/5 — Awesome free app *2026-02-01, version 7.6.4* Amazing !!! This free app makes creating and training on breath tables super easy and fun. I highly recommend it - wish I had found it before !!! ### 5/5 — Best breath hold app but.. *2026-01-31, version 7.6.4* Would be nicer if it had a bit more of an up to date UI and UX ### 5/5 — Very useful app *2026-01-28, version 7.6.4* I’ve just started with breath holds and found this an invaluable tool. ### 5/5 — Great Apnea timer !! *2026-01-05, version 7.6.4* Great Apnea app. Easy to use and easy to customise. Bring on more CO2!! ### 5/5 — This app *2025-12-30, version 7.6.4* It took me from breathing at ten now I breathe way past that. ### 5/5 — I’m love this app *2025-10-01, version 7.6.4* Best app ever well made no nonsense great. Has helped me train apnea for nearly 6 years now I’ve never felt better --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*