The Power Speed Endurance App. Access your PSE PRO online training plans through the official PSE PRO App. This app is an extension of the Power Speed Endurance - PSE PRO online training platform. Access your daily training, the PSE video library, the Power Speed Endurance blog, a customized PSE breathing protocol timer and comment on the PSE PRO daily training through the PSE app interface. The Power Speed Endurance app is designed to optimize the user experience for all PSE PRO members.