This is an iPad version of original Apnea Timer.
Wether you are a free diver, underwater hunter or just like snorkelling in shallow water, this timer will be useful for you. Both CO2 and O2 training tables are included as well as tables for square and triangle breathing training techniques. Store more oxygen in your blood and cope with higher levels of CO2. Achieve better relaxation following recommendations of the world’s best freediving instructors. Training with this application will quickly and drastically increase the time you’ll be able to stay under water without scuba gear.
Dive deeper, stay longer!