This app was mentioned in 8 comments, with an average of 1.75 upvotes
I use this app. https://play.google.com/store/apps/details?id=com.naterop.freedive
Keep it simple is my method. Every few weeks I'll do a max static and see where I'm at and update the app.
You don't need an O2 link. Or at all. Just feel your body's reaction and behavior. That's what you're trying to control. The finger O2 sensors aren't accurate anyway on breath holds. A regular fitness tracker can track HR. But these are pieces of information that just doesn't apply. If you are calm and relaxed your specific HR doesn't matter. We're all different. The data could be helpful but in reality it's all in your head. You don't need data... You need relaxation while holding! The only data that matters is how long you can comfortably hold.
You can train as much as you have the capacity for both mentally and physically. I've done two a days ( the tables I do are under 30 minutes still ).
You'll know you've done too much if you don't have the stamina to stay present while training. If you doze off or lose focus call it off for a day or three!
There's so many schools of thought on which series of tables is the best. It's still such a new science. I do the CO2 tolerance mostly and then mix in an O2 deprivation table (presets in the app). Looking for a challenge? Try it holding on exhale :)
Correct. But you do need that when freediving.
And freedivers have so-called O2 and CO2 tables as their training tools. They are sequences of intervals to breathe and to hold your breath, specifically designed to improve the breath-hold time. The difference is that O2 tables are progressions of intervals of breath-hold of increasing length, with fixed and quite long gaps where you are allowed to breathe, while CO2 tables have identical and fixed breath-holding intervals, with progressively shortening gaps between them. You are supposed to do one table per day: one day O2, one day CO2, and so on.
There are Android apps that implement that kind of training ("apnea trainer" type of apps, e.g. this one), you can use them on dry land safely. Just make sure to calibrate them initially, because all the intervals are calculated as percentages of your personal best breath-holding time. And stay relaxed, so that your muscles do not waste O2 and produce extra CO2.
using Freedive by Luca Naterop https://play.google.com/store/apps/details?id=com.naterop.freedive
well made app for static training
No, I use this alternative.
https://play.google.com/store/apps/details?id=com.naterop.freedive
I trained with this app. (Available in App Store also as long as I know)
Took about 3 weeks to reach 3 minutes.
Yes! But it is still a bit buggy.
https://play.google.com/store/apps/details?id=com.naterop.freedive&hl=en
Android app. There are multiple such apps with the same functionality, this one is what I use, for no particularly good reason.