Apps similar to Norwegian 4x4 Protocol App include Kuta, which has a free version. Other options are Workout Time!, Interval Timer (PFA), Just Another Workout Timer and Aika Workout Timer. You can choose from more than 10 Fitness Trackers like Norwegian 4x4 Protocol App for Android, iPhone, iPad, the web and Mac.
The first rule of Zombieland; cardio.
HIIT, high intensity interval timer, is a no frills timer for interval training routines, or anything you may need an interval timer for really. You may specify a number of seconds for each active period, a number of seconds for each rest pe.
ProtoFit: Workout & HIIT timer is a workout timer and tracker app. With its custom exercise parameters, it is the most versatile workout timer suitable for any workout type, including tabata, HIIT, interval training and more.
Free online interval timer for HIIT, Tabata, EMOM, AMRAP workouts. Customizable work/rest periods, rounds, cycles, and sounds. Works on any device.
