v18.104.22.168 - Added vibration notifications STAmina is a Windows Phone app created by and for freedivers with the ultimate purpose to improve your freediving skills by increasing the breath-holding time. STAmina is all about O2 deprivation and CO2 tolerance tables. It allows you to configure the tables to correspond to your skill level. It leads you through a workout with visual and voice notifications and tracks the history of your workouts. STAmina is absolutely free, adless application. We welcome and encourage your feedback. Help us to make this application even better! See you underwater!