Spearo Apnea is a standalone Apple Watch app for freediving and apnea training. Train with scientifically-designed breath-hold tables including CO2 Tolerance, O2 Deprivation, Square Breathing, Pranayama, Pyramid, and advanced protocols. Track your progress with real-time heart rate monitoring from HealthKit, SpO2 estimation, contraction counting, and an Apnea Score after every session. Level up through an XP system, unlock achievements, and sync your data across devices with Firebase.

What's New in Spearo Apnea

1.0.86 (921

September 4, 2026

Timers keep running when the screen turns off. During the breath-hold baseline test and training sessions, lowering your wrist no longer stops the clock, so your baseline and hold times are recorded accurately. Always On Display shows a dimmed timer during holds and rests. Heart-rate tracking continues while the screen is dark. The "Screen Always On" switch was removed: Apple Watch controls that in Settings > Display & Brightness. App Review note to paste with the submission: "Background Modes now declares mindfulness and workout-processing. Guided breathing and breath-hold timers must keep running while the wrist is lowered; the workout session is the existing HealthKit heart-rate stream during training."