Comparison

Interval Timer・HIIT Timer vs Ntrval Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Interval Timer・HIIT Timer

This app provides a customizable interval timer for various fitness activities like HIIT, strength training, and yoga. It includes real-time audio cues, heart rate monitoring using your phone's camera, and automatic workout logging to track progress.

Highlights
  • Customizable workout intervals
  • Real-time audio and voice cues
  • Heart rate monitoring via camera
  • Automatic workout logging
  • Workout history and statistics
  • Drag-and-set interface
Features
Read full description

Fitness Timer is your all-in-one workout timer app designed to help you stay focused, train efficiently, and monitor your fitness progress. Whether you're doing HIIT, strength training, Tabata, cardio, or yoga, this interval timer makes it easy to set up custom workouts and follow them with precision. Perfect for both beginners and advanced athletes, Fitness Timer delivers a clean, distraction-free experience with customizable intervals, real-time audio cues, and heart rate tracking—all without interrupting your music or other apps. Interval Timer for Every Workout Fitness Timer is a powerful yet simple workout timer built for all types of interval training: * Create and customize workout intervals for active time, rest time, and number of rounds * Set up timers for HIIT, Tabata, EMOM, AMRAP, circuit training, or stretching * Get started in seconds with a clean drag-and-set interface * Clear audio or voice alerts guide you through each interval Use Fitness Timer to structure your home workouts, gym routines, or running intervals without hassle. Heart Rate Monitor Using Camera Now featuring built-in heart rate monitoring with no extra device required. Use your phone's camera and flashlight to measure your heart rate instantly: * Place your finger on the camera to measure your pulse * Monitor heart rate before, during, or after exercise * Useful for cardio training, recovery, and intensity tracking This feature turns your phone into a lightweight heart rate tracker to support safe, effective workouts. Fitness Tracking and History Fitness Timer automatically logs every session so you can track your progress and stay motivated: * View workout history and total training time * Repeat previous sessions with one tap * Analyze your training patterns in the statistics tab Information about the auto-renewable nature of the subscription. Confirm subscription: Payment will be charged to iTunes Account at confirmation of purchase. Manage subscriptions: Users can manage or unsubscribe in iTunes & App Store account management in the phone system settings. Auto-renewal: Apple iTunes account will be charged for renewal within 24-hours prior to the end of the current subscription period. To cancel the renewal, please turn off auto-renew manually at least 24-hours before the end of the period. No cancellation of the current subscription is allowed during the active subscription period. You can go to the Account Settings to cancel the renewal before the trial ends. The current free trial will be forfeited when you purchase a subscription to the premium version before the trial period ends. By using the app, you confirm that you acknowledge and accept our Privacy Policy and Terms of Service: Privacy Policy: https://sites.google.com/view/reva-desai/privacy Terms of Service: https://sites.google.com/view/reva-desai/terms You no longer need to manually record your workouts—everything is saved automatically.

About

Ntrval Timer

Design custom interval timers with work/rest periods, rounds, and visual cues. Build complete workouts from exercises, schedule training, and display timers on a large screen. It's designed for efficient training, from quick sessions to coached classes.

Highlights
  • Customizable interval timers
  • Workout builder with exercises
  • Per-interval names and colors
  • Glanceable display
  • Workout scheduling
  • TV display mode
Read full description

Ntrval is an interval timer built for how people actually train — fast to set up, clear to read across the room, and flexible enough for everything from a quick Tabata to a full coached session. Design a timer in seconds: set your work and rest intervals, rounds, colors, and sound cues, then hit start. Or build a complete workout from your own exercises and let Ntrval generate the timing for you. CUSTOM INTERVAL TIMERS • Work and rest intervals, rounds, and structure your way • Per-interval names, colors, and sound cues • A big, glanceable display you can read mid-set • Countdown beeps, transition cues, and vibration WORKOUT BUILDER • Build sessions from stations and exercises • Warm-ups and finishers • Timing generated automatically from your workout • Save workouts as reusable templates EXERCISE LIBRARY • Keep your movements, equipment, and notes in one place • Attach video links for form reference PLAN YOUR WEEK • Schedule timers and workouts on a calendar • Keep your training organized from anywhere RUN IT ON THE BIG SCREEN • A clean, full-screen TV display mode — AirPlay or screen-mirror to a TV for gyms, studios, and group classes ALSO INCLUDED • Stopwatch and alarms • Works offline — your timer runs even without a connection • No ads. No tracking. Whether you train at home, coach clients, or program classes for a studio, Ntrval keeps the timer out of your way so you can focus on the work. — PLANS Ntrval is free for core interval timers, stopwatch, and alarms. Optional annual subscriptions unlock more: • Basic — $19.99/year: the training calendar • Pro — $39.99/year: the workout builder, exercise library, templates, and sharing • Business — $79.99/year: everything in Pro, plus the commercial Display Board for gym TVs Subscriptions are auto-renewable. Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours prior to the end of the period. You can manage or cancel in your Apple Account settings after purchase. Terms of Service: https://www.ntrvaltimer.com/terms Privacy Policy: https://www.ntrvaltimer.com/privacy

Screenshots

Interval Timer・HIIT Timer4 screens
Ntrval Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Ntrval Timer at none against Interval Timer・HIIT Timer's 2. On price, rating, ratings volume and update cadence there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Interval Timer・HIIT Timer sells 2 in-app purchases, starting at $2.99 per month. Ntrval Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Interval Timer・HIIT Timer against 5.0 for Ntrval Timer. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Interval Timer・HIIT Timer ships an update every 4 days, Ntrval Timer weekly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 8 level
Interval Timer・HIIT Timer versus Ntrval Timer: the parameters behind the verdict, then further details
ParameterInterval Timer・HIIT TimerNtrval Timer
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Number of ratings2 — better1
Update frequencyEvery 4 days — betterWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size74 MB15 MB
Age rating4+4+
DeveloperReva DesaiBlake Garcia

In-app purchases

2 purchases

Interval Timer・HIIT Timer

Subscriptions2
  • Premium Monthly Access$2.991 Month
  • Premium Yearly Access$19.991 Year
None

Ntrval Timer

No in-app purchases

Questions

Is Interval Timer・HIIT Timer free?
Interval Timer・HIIT Timer is free to download, with in-app purchases available.
Is Ntrval Timer free?
Ntrval Timer is free to download, with no in-app purchases.
Which has better reviews, Interval Timer・HIIT Timer or Ntrval Timer?
Interval Timer・HIIT Timer and Ntrval Timer are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Interval Timer・HIIT Timer or Ntrval Timer have ads?
Neither Interval Timer・HIIT Timer nor Ntrval Timer shows ads.
Which is updated more often, Interval Timer・HIIT Timer or Ntrval Timer?
Interval Timer・HIIT Timer ships an update every 4 days, and Ntrval Timer weekly. Most recently, Interval Timer・HIIT Timer was updated on October 28, 2026 and Ntrval Timer on October 31, 2026.

Other comparisons