Apps Like Norwegian 4x4 Protocol: Boreas for iPhone and iPad
Train with 4x4 intervals and track heart
Perform 4x4 interval training with customizable warm-up and cooldown durations. Track heart rate and calories using Apple Watch. Receive voice guidance for interval transitions.
by Havard Tryman★ 4.725 ratingsSportsFreeData updated 2026-09-06
Track heart rate live from AirPods Pro 3 and Powerbeats Pro 2 without a chest strap. Monitor training readiness, daily strain, and recovery status. Sync data from Apple Watch, Garmin, Oura, and WHOOP. Log workouts and view progress charts.
Track runs and walks with route creation and progress comparison. Monitor heart rate and sync with Apple Health and Apple Watch. Set goals and receive voice coaching. Enable LiveTracking and group tracking. Share runs with friends and family.
Set workout intervals with customizable prepare, work, rest, and cool down times. Adjust cycles and sets. Configure individual intervals for custom sequences. Use voice assistant for text-to-speech guidance.
Track intervals with customizable timers for HIIT, Tabata, and Circuit Training. Set full-screen displays in landscape or portrait. Combine multiple timers for complex workouts. Receive spoken names and warnings.
Track workouts video tutorials and progress metrics. Log meals custom meal guides and nutritional info. Set fitness goals and receive personalized training plans. Sync fitness trackers and view activity summaries.
Track workouts by logging sets, reps, and weights. Build custom routines tailored to fitness goals. Sync with Apple Watch for real-time data. View progress charts and adjust training plans as needed.
The controls a wall-mounted LED display and offers interval training features. Users can set custom workout intervals, track time, and manage sessions. It supports multiple workout types like CrossFit and HIIT.
Track work and rest intervals for workouts. Set custom durations for sets and rounds. Start and pause sessions manually or with voice commands. Monitor heart rate via Apple Watch. Sync progress with iCloud and integrate with Health .
Track work and rest intervals during workouts. Set total time and alternate between high and low intensity periods. Run in foreground, background, or with device locked. Log exercise types like cycling, running, lifting, or stretching.
Set intervals for prepare, work, rest, and cool down periods. Adjust duration and number of cycles. Configure custom sequences for training. Use voice commands for guidance. Track workout progress with real-time timing.
Track and variability with advanced algorithms. daily steps and blood oxygen levels. Set goals and view progress over time. Sync data with apps and receive notifications for abnormal readings.
A workout with interval training modes including , Rounds, Stopwatch, Intervals, and Workout of the Day. Displays round count and duration. Works in background with premium version. Tracks time and allows customization of sessions.
Create runs with customizable time, distance, or open intervals. Design HIIT, tempo, fartlek, pyramid, or progression workouts. Track pace, cadence, and heart rate in real time. Save and reuse favorite routines. Syncs with Apple Watch.
Set training sessions with customizable sets, actions, and breaks. Track time for exercises and rests. Save session settings for future use. Prevent screen dimming on iOS during workouts.
Generate random functional fitness workouts based on available equipment. Select equipment, click "GO," and browse generated WODs. Track time directly within the . No barbell? Use bodyweight or household items.