Best apps like Zx: Heart Rate Zones Training

102+ similar apps compared and reviewed

4.7 avg rating
10 free apps
Updated July 2026

Looking for something like Zx? We've analyzed 102+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

simply. nutrition tips

simply. nutrition tips by simply advisory LLC

that help you get healthy.
💪 Health & Fitness
5.0(17 ratings)
FreeIn-App Purchases
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Get daily nutrition tips from certified nutritionists with a subscription to this app, and start your journey to a healthier lifestyle. With features like customizable notifications, saved tips, and a tip tracker, you can easily incorporate healthy habits into your daily life.

Get More Info

Top Alternatives to Zx

Interval Timer - Tabata Timer#1

Interval Timer - Tabata Timer by NEO PIXEL LABS PTE. LTD.

Multiple timers for fitness
Editor's Choice
💪 Health & Fitness
4.5😊(18K ratings)
FreeAdsIn-App Purchases
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This app helps you manage workout intervals with customizable work and rest periods. It runs in the background and allows music playback, with options to save settings and share progress. Integrates with Apple Health for heart rate monitoring.

What We Love

  • 🚀 Free version works well
  • 👍 Customizable intervals and timers
  • 👍 Flexible for different workouts
  • 👍 Easy to use and set up

Room to Improve

  • 🐛 Timer issues (stops, loses time)
  • 🔋 Drains battery when used
  • 💰 Expensive subscription model
Zone 2: Heart Rate Training#2

Zone 2: Heart Rate Training by Shannon Bolick

Cardio zones workout HR alerts
Strong Contender
💪 Health & Fitness
4.7😊(236 ratings)
FreeIn-App Purchases
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This app helps you track your weekly workout time spent in the Zone 2 heart rate range. It provides detailed tracking, connectivity with various heart rate monitors and Strava, and real-time feedback on your progress towards your fitness goals.

What We Love

  • 👍 Simple and intuitive user interface
  • ⏱️ Accurate real-time zone tracking during workouts
  • 📊 Comprehensive cumulative time tracking by zone
  • 🎯 Customizable heart rate zones and weekly goals

Room to Improve

  • 🐛 Frequent Bluetooth disconnections from HR monitors
  • 🐛 App crashes and freezes mid-workout
  • 🐛 Tracking stops randomly during workouts
Intervals Pro: HIIT Timer#3

Intervals Pro: HIIT Timer by Intervals, LLC

Running & Fitness Workouts
Worth Considering
💪 Health & Fitness
4.8😊(13K ratings)
FreeIn-App Purchases
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Create and follow custom interval training routines for various fitness activities. This app offers extensive customization for intervals, alerts, and goals, with seamless integration for Apple Watch and Apple Health.

What We Love

  • 👍 Customizable timers and intervals
  • 🚀 Seamless Apple Watch integration
  • 💪 Helps with fitness goals and training
  • 🔍 Detailed workout tracking and analytics

Room to Improve

  • 🐛 Occasional sync and connectivity issues
  • 🔍 Lack of clear guidance and documentation
  • 💰 Paid version required for full functionality

More apps like Zx

4
Workout Timer Custom Intervals
Workout Timer Custom Intervals
Workout Timer Custom Intervals
Fitness, Circuit, AMRAP, EMOM
Free

This app offers customizable interval timers for various training styles like HIIT, Tabata, and Crossfit. Track your progress, enjoy background music, and switch between light and dark modes to enhance your fitness routine.

Customizable interval timersSupports HIIT, Tabata, WOD, Crossfit, EMOM, AMRAPHistorical workout tracking
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5
Interval Timer □ HIIT Timer
Interval Timer □ HIIT Timer
Interval Timer □ HIIT Timer
Minuteur intervalle
Free

Create custom workout timers with adjustable intervals for exercise and rest. Track your progress with detailed history and statistics, and repeat past workouts easily. Enjoy audio cues without interrupting your music.

Customizable intervalsWorkout and rest timersVoice or beep guides
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6
C25K® 5K Running Coach & Map
C25K® 5K Running Coach & Map
C25K® 5K Running Coach & Map
Run Training - Couch to Runner
Free

This app guides beginners from being inactive to running a 5K in 8 weeks. It uses a structured plan with audio coaching and alerts, gradually increasing running intervals. Users can map their runs and join a supportive community.

Official Couch to 5K program8-week training planAudio coach and alerts
💪 Health & Fitness
(170K)
free with in-app purchases
7
Interval Timer: HIIT Workout
Interval Timer: HIIT Workout
Interval Timer: HIIT Workout
Simple Stopwatch for Training
Free

This interval timer is designed for HIIT and interval training. Easily set work and rest periods, sets, and rounds to guide your workouts. It supports background operation and music playback, with an Apple Watch companion app for heart rate monitoring.

Customizable work and rest periodsSet number of sets and roundsBackground operation support
💪 Health & Fitness
(234)
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8
Interval Flow - WOD Timer
Interval Flow - WOD Timer
Interval Flow - WOD Timer
Create & Share Custom Workouts
Free

This app revolutionizes fitness routines with deep customization and advanced tracking for various activities like HIIT, Yoga, and CrossFit. It allows users to create, share, and follow personalized workouts with features like color-coded intervals, real-time progress tracking, and voice assistance.

Color-coded intervalsCustomizable circuitsReal-time progress tracking
💪 Health & Fitness
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9
HIIT • Workouts & Timer
HIIT • Workouts & Timer
HIIT • Workouts & Timer
24 Hour Fitness,Tabata,Cardio
Free

This app offers short, high-intensity interval training (HIIT) workouts that can be done anywhere with no equipment. It provides scientifically proven exercises, custom timer templates, and progress tracking to help users achieve fitness results quickly.

Short, high-intensity workoutsCustomizable timer templatesStep-by-step instructions
💪 Health & Fitness
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10
FITIV Pulse - Workout Tracker
FITIV Pulse - Workout Tracker
FITIV Pulse - Workout Tracker
GLP-1, HRV, Heart Rate Zones
Free

This app is a comprehensive health and fitness tracker that monitors workouts, heart rate, sleep, and recovery. It provides actionable insights to help users train smarter and achieve their fitness goals.

Heart rate zone trainingHRV and recovery trackingSleep monitoring
💪 Health & Fitness
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