VICTO IDEAS Health & Fitness Lab(Top 3 Health & Fitness in the US and top 100 in many countries)Tap on "more by this developer" -> you will see a lot of amazing things!!!Run in foreground, background and screen locked, this HIIT app allows you to specify an overall time as well as program High/Low intensity interval and rest time between cycles. + Flexible and Advanced Timer+ Clean, simple and easy to use (There is no learning curve here)+ Create your own timers with some taps+ Create fully customized timers with a complex of cycles and sets,+ Run in the background, foreground, screen locked+ Color, Voice and Sound Navigations (Customizable)+ Built in Music Player (in sync with iOS Music Player)+ Multiple themes to select+ Manage your timers and data of training (you can even delete unwanted timer or junk data)+ Create your own alarms right in the app+ Work on iPhone, iPad and iPod+ And a lot more features will be added in over time.How to use this app: There is no user manual here! -> Download it -> tap on play button -> you will see -> It’s super easyAbout us: VICTO IDEAS is a research lab, specializes in health & fitness technologies. We are the lab that created the famous Massage Pillow, Bedtime Sleep Fan, 7 Minute Workout Plus, Water Tracker, 20 Day Fit, 20/20 Diet For Life... (You may want to have a look at our apps -> tap on more by this developer/Thang Nguyen -> it will navigate to all the available apps)We created technologies to help more and more people improving their health & life experience.