Comparison

Interval Timer vs IntenSync

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

Head to head
About

Interval Timer

This app provides a customizable interval timer for various training routines, including HIIT and Tabata. Easily set up custom workouts, track your progress, and stay motivated with visual cues and audio notifications. It's suitable for a wide range of activities from fitness to productivity.

Highlights
  • Customizable workout setup
  • Progress tracking with calendar
  • Saveable custom presets
  • Color-coded notifications
  • Listen to music/audiobooks
  • Large, full-screen display
  • Widget for easy access
Features
Read full description

Interval Timer: Tabata and HIIT is a customizable timer for sports. Use it for High-intensity interval training and workout. It's a free sports interval timer app that makes it easy to create your custom training routine. Use it as your timer for training or exercise. This sports timer is great for crossfit, fitness and running. The sports timer will also be useful for various activities such as crossfit, jogging, boxing,circuit training,breathing exercises and yoga. You can use this circuit timer as a productivity timer to focus on your work tasks. Key features: Setup workout Tracking your progress Customizable presets Notifications & colors Motivation Listening music or books Huge digits Widget SETUP WORKOUT Set up, edit and save your own workouts with the customizable feature. Add as many intervals as you like. You can add a 10 second rest period and a 20 second work period, as well as a 5 second interval between exercises. TRACKING PROGRESS Track your workouts with a Calendar. Plan and track events, and get notified when you have a training scheduled. With this feature, you will not miss a single workout and will keep track of your progress. CUSTOMIZABLE PRESETS Save your workouts in the presets section. It's also possible to create your own custom intervals. You can add an unlimited number of presets. NOTIFICATIONS & COLORS Each training phase is easy to distinguish by a different color and is initiated by an individually adjustable signal (sound, vibration, voice) MOTIVATION Each completed exercise motivates you to achieve higher goals. Enjoy your training and achieve your fitness goals with the interval timer. LISTENING MUSIC Listen to motivational audiobooks or your favorite music and get inspired and energized. Full screen color coded display is easy to read from a distance. Widget helps you train without being distracted by the constant unlocking of your phone. Interval Timer: Tabata and HIIT is an easy to use sports workout timer for your daily fitness training at home, at the gym or everywhere else.

About

IntenSync

This app helps you create and track custom interval workouts for various fitness activities. It offers voice cues, visual guidance, and progress analytics. Premium features include manual logging, hydration and nutrition planning, and community engagement.

Highlights
  • Custom interval workout builder
  • Voice cues and sound packs
  • Visual workout guidance
  • Workout progress tracking and analytics
  • Manual workout logging (Premium)
  • Hydration and nutrition planning (Premium)
  • Community and accountability features
Features
Read full description

Build workouts, follow every set and rep, and stay consistent with one focused training companion. IntenSync brings workout planning, guided exercise sessions, demonstrations, prerecorded voice coaching, progress insights, nutrition, hydration, and Apple Watch controls together in a clean, distraction-free experience. BUILD FOR YOUR GOALS Create structured routines from a preset exercise library for the gym, home, or wherever you train. • Organize exercises into sets and rounds • Choose repetitions or timed intervals • Add rest, recovery, and cooldown periods • Build strength, HIIT, Pilates, cardio, circuit, and bodyweight sessions • Save routines for quick access FOLLOW EVERY SESSION The guided workout player keeps your session moving while clearly showing what to do now and what comes next. • Rep-by-rep pacing for supported exercises • Set, round, repetition, and side tracking • Automatic rest and recovery periods • Prerecorded voice cues • Exercise demonstrations for supported movements • Controls to pause, skip, add time, mute, or finish COACHING AND TRAINING PLANS Use AI-assisted coaching to create practical workout drafts based on your goals and preferences. Review your routine before training and make adjustments when needed. Premium unlocks adaptive training plans, expanded coaching tools, exercise demonstration videos, and deeper workout insights. SEE YOUR PROGRESS Turn completed sessions into a clear view of your training consistency. • Workout history and session summaries • Recent progress • Training momentum • Completion and consistency insights • Detailed analytics with Premium SUPPORT YOUR TRAINING Log hydration and nutrition alongside your workouts. Review daily progress and keep the habits supporting your training in one place. Premium adds smarter planning and reminder tools. TRAIN WITH APPLE WATCH Premium members can use the Apple Watch companion during an active workout. • See the current exercise, set, repetitions, side, and remaining time • Pause, resume, skip, complete a set, or add time • Hear prerecorded voice cues on Apple Watch when connected • Continue voice guidance automatically on iPhone when the Watch is unavailable • View heart-rate information after granting Health access FREE AND PREMIUM Free features include the workout timer, routine builder, standard prerecorded voice guidance, recent progress, hydration tracking, and nutrition logging. Free browsing screens may contain ads, but ads are not shown during active workouts. IntenSync Premium adds AI-assisted coaching, adaptive training plans, exercise demonstration videos, detailed analytics, additional prerecorded coaching options, Apple Watch controls, and an ad-free experience. IntenSync is intended for general fitness and informational purposes. It does not provide medical advice, diagnosis, or treatment. Exercise within your abilities and consult a qualified professional when appropriate. SUBSCRIPTIONS IntenSync Premium is available through optional monthly and annual auto-renewable subscriptions. Payment is charged to your Apple ID account when your purchase is confirmed. Your subscription renews automatically unless canceled at least 24 hours before the end of the current subscription period. You can manage or cancel it through your Apple ID subscription settings. Privacy Policy: https://intensync.equilibelle.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Interval Timer4 screens
IntenSync4 screens

Verdict

The call

The clearest difference is ratings volume: Interval Timer at 384 against IntenSync's 2. IntenSync's advantage is update cadence (every 6 days vs monthly). On price, rating, ads and in-app purchases 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 sells 12 in-app purchases, starting at $2.09 per month and IntenSync sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Interval Timer against 5.0 for IntenSync. That said, the two scores are not equally well evidenced: Interval Timer has 384 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Interval Timer ships an update monthly, IntenSync every 6 days. The most recent releases landed on October 18, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level
Interval Timer versus IntenSync: the parameters behind the verdict, then further details
ParameterInterval TimerIntenSync
PriceFreeFree
Rating4.9 (384 ratings)5.0 (2 ratings) — better
Positive reviews96.6% of reviews—
Number of ratings384 — better2
Update frequencyMonthlyEvery 6 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS15.014.0 — better
Further details — not scored
Size113 MB253 MB
Age rating4+12+
DeveloperSimpleInnovation LLCEquilibelle App Solutions

Customer experience

Interval Timer

All ratings384 ratings
Positive99.5%
Neutral0.3%
Negative0.3%
Written reviews319 reviews
Positive96.6%
Neutral0.9%
Negative2.5%

IntenSync

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Interval Timer

Reported bugs

2 issues
  • Occasional app crashes
  • Compatibility issues with older devices

Requested features

3 requests
  • More pre-designed workout routines
  • Ability to name and customize exercises
  • Option to adjust countdown time between intervals

IntenSync

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

Interval Timer

Subscriptions8
  • Timer PRO for 1 month: 30% OFF7 Days trial$2.091 Month
  • Timer PRO for 1 month: 25% OFF7 Days trial$2.291 Month
  • Interval Timer PRO for 1 month$2.991 Month
Show 5 more
  • Interval Timer PRO for 1 month7 Days trial$2.991 Month
  • Interval Timer PRO - 30% OFF7 Days trial$15.001 Year
  • Interval Timer PRO - 25% OFF7 Days trial$16.491 Year
  • Interval Timer PRO for 1 year$21.991 Year
  • Tabata Timer PRO for 1 year7 Days trial$21.991 Year
One-time4
  • Interval Timer - no Ads$2.99
  • HIIT Timer PRO Forever 30% OFF$27.99
  • HIIT Timer PRO Forever 25% OFF$29.99
Show 1 more
  • Exercise Timer PRO Forever$39.99
2 purchases

IntenSync

Subscriptions2
  • Monthly Premium$3.991 Month
  • Annual Premium$34.991 Year

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is IntenSync free?
IntenSync is free to download, with in-app purchases available.
Which has better reviews, Interval Timer or IntenSync?
IntenSync is rated higher. Interval Timer averages 4.9 out of 5 from 384 ratings, while IntenSync averages 5.0 from 2 ratings.
Do Interval Timer or IntenSync have ads?
Both Interval Timer and IntenSync show ads.
Which is updated more often, Interval Timer or IntenSync?
Interval Timer ships an update monthly, and IntenSync every 6 days. Most recently, Interval Timer was updated on October 18, 2026 and IntenSync on October 6, 2026.

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