Name: Dynamic Apnea Trainer
Author: FreedivingPH.com

DRY TRAINING ONLY. Dynamic Apnea Trainer is for dry-land breath-hold training only. Do not use it in water, while swimming, diving, driving, or during any activity where loss of consciousness could cause injury. This app is not a safety device or a substitute for trained supervision.
Build customizable breath-hold interval sessions with PREPARE, HOLD, and RECOVER phases. Set preparation and recovery time, rounds, recovery reduction, sound, vibration, and a maximum hold reminder.
Features large countdowns, 5-second backlight cue, pause/resume during preparation and recovery, heart-rate display where supported, and per-round hold-time summaries.
For educational and dry-land training-timer use only.