Comparison

Interval Timer vs TMR Interval Timer & Stopwatch

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

TMR Interval Timer & Stopwatch

Features
Read full description

TMR is the one interval timer for all your needs — simple, flexible, and powerful. Create fully customized timers or choose from dozens of ready-made presets: Pomodoro, Tabata, HIIT, EMOM, AMRAP, Boxing Round Timer, Study Sessions, Focus Blocks, Yoga Intervals, and more. Key Features: • Extensive library of professional presets for work, training, rest, and focus • Fast creation and saving of personalized timers • Full customization of all parameters: rounds, intervals, rest periods, sounds, and alerts • Favorites — quick access to your most-used timers • Versatile for Pomodoro, HIIT, Boxing, Tabata, Study, Focus, and any other routines • Runs in the background TMR helps you manage your time efficiently — from everyday tasks to high-intensity workouts. Read our full Terms of Service and Privacy Policy: https://zdravo.mobi/docs/Terms_and_Conditions.pdf https://zdravo.mobi/docs/Privacy_Policy.pdf

Screenshots

Interval Timer4 screens
TMR Interval Timer & Stopwatch4 screens

Verdict

The call

The clearest difference is ads: TMR Interval Timer & Stopwatch at none against Interval Timer's shown. TMR Interval Timer & Stopwatch also leads on update cadence (every 9 days vs monthly). Interval Timer's advantage is device support (4 vs 1) and iOS requirement (15.0 vs 17.6). On price 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 TMR Interval Timer & Stopwatch sells 8 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Interval Timer ships an update monthly, TMR Interval Timer & Stopwatch every 9 days. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 6 level
Interval Timer versus TMR Interval Timer & Stopwatch: the parameters behind the verdict, then further details
ParameterInterval TimerTMR Interval Timer & Stopwatch
PriceFreeFree
Rating4.9 (387 ratings) — better—
Positive reviews96.6% of reviews—
Number of ratings387 — better—
Update frequencyMonthlyEvery 9 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone
Requires iOS15.0 — better17.6
Further details — not scored
Size113 MB17 MB
Age rating4+4+
DeveloperSimpleInnovation LLCAliaksei Kruchkou

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

TMR Interval Timer & Stopwatch

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
8 purchases

TMR Interval Timer & Stopwatch

Subscriptions8
  • Weekly TMR Pro3 Days trial$0.997 Days
  • TMR Pro Monthly7 Days trial$3.991 Month
  • TMR Pro Monthly3 Days trial$3.991 Month
Show 5 more
  • TMR Pro Weekly$5.997 Days
  • Annual TMR Pro3 Days trial$10.991 Year
  • TMR Pro Annually7 Days trial$19.991 Year
  • TMR Pro Annually3 Days trial$19.991 Year
  • Annual TMR Pro$34.991 Year

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is TMR Interval Timer & Stopwatch free?
TMR Interval Timer & Stopwatch is free to download, with in-app purchases available.
Do Interval Timer or TMR Interval Timer & Stopwatch have ads?
Interval Timer shows ads; TMR Interval Timer & Stopwatch does not.
Which is updated more often, Interval Timer or TMR Interval Timer & Stopwatch?
Interval Timer ships an update monthly, and TMR Interval Timer & Stopwatch every 9 days. Most recently, Interval Timer was updated on October 21, 2026 and TMR Interval Timer & Stopwatch on October 7, 2026.

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