Apps Like N4x4 for iPhone and iPad
Ranked alternatives
Showing 1–20 of 1,000 ranked alternatives.



Vo2 Max & Endurance: Zone2AI
Unbounded Technologies LLC
Train with Zone 2 and 4x4 sprints
Track heart rate and cadence during Zone 2 training and 4x4 sprints. Set personalized workout intervals and durations. Monitor progress with performance analytics and health projections. Export data to external apps and devices.


Voltage Fitness Apex
Sutra Fitness, Inc.
Train with HIIT and strength workouts
Track heart rate and calories burned during workouts. Follow structured HIIT and strength training routines. Join live or recorded group classes. Set goals and monitor progress. Sync with wearable devices for real-time data.


Timer Plus - Workouts Timer
VGFIT LLC
Track intervals and manage workout cycles
Interval Training allows users to set and track intervals with customizable rounds and durations. It includes a stopwatch, background functionality, and screen flash alerts. Users can create and save multiple timers for .



FivePointFive: Breathwork
FivePointFive Movement Limited
Breathe coached sessions for performance
Track breathing patterns with real-time feedback. Perform guided sessions for performance, recovery, and sleep. Measure improvements in VO₂-max, HRV, and stress resilience. Sync data with fitness apps for comprehensive tracking.

Norwegian 4x4 Protocol: Boreas
Havard Tryman
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.






Nike Training Club
Nike, Inc
Workout, track progress, access coaching
Access workout programs created by trainers and experts. Track progress with goal setting and session logging. Follow structured routines for strength, conditioning, yoga, and recovery. Receive mindfulness and mobility exercises.


Tabata HIIT. Interval Training
Axiom Mobile LLC
Workout hard in 4 minutes
Offers 4-minute high-intensity sessions using 20-second work intervals and 10-second rests. Users can choose from pre-set plans for abs, lower body, upper body, and fat burning. Custom workouts can be created.

How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.