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Scores your sleep, recovery and steps, with live heart rate
Atria is an iPhone app that talks to a WHOOP 4.0 directly over Bluetooth, so it needs no WHOOP account or membership. It keeps your readings on the phone and works out its own sleep, recovery, strain and step estimates, and can send heart rate, workouts and sleep to Apple Health.
So far only its step counts on walks have been checked, against a metronome; sleep, recovery and strain are unchecked, and blood oxygen isn't shown. There's no App Store version, so you build it in Xcode.
How did it go? Tips, problems, questions…
Scores your sleep, recovery and steps, with live heart rate
Atria is an iPhone app that talks to a WHOOP 4.0 directly over Bluetooth, so it needs no WHOOP account or membership. It keeps your readings on the phone and works out its own sleep, recovery, strain and step estimates, and can send heart rate, workouts and sleep to Apple Health.
So far only its step counts on walks have been checked, against a metronome; sleep, recovery and strain are unchecked, and blood oxygen isn't shown. There's no App Store version, so you build it in Xcode.
adidshaft
11 followers · joined Aug 2025
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How did it go? Tips, problems, questions…