Comparison

Interval Timer vs BJJ 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

BJJ Stopwatch

This specialized timer app provides clear audio cues for training Brazilian Jiu-Jitsu. It features a user-friendly interface with large displays and dark mode, along with quick actions for pausing, resetting, and adjusting rounds. Ideal for practitioners, coaches, and academies seeking structured training sessions.

Highlights
  • Clear audio signals for round start/end
  • Configurable warning signals
  • Rest period indicators
  • Large, easy-to-read display
  • Dark mode support
  • Pause/Resume functionality
  • Quick round reset
Read full description

BJJ Stopwatch is a specialized timer application designed specifically for Brazilian Jiu-Jitsu practitioners. Whether you're training for competition, drilling techniques, or enjoying an open mat session, this app has you covered. FEATURES: • Clear Audio Signals: Start/end round notifications Warning signals at configurable intervals Rest period indicators to prepare for the next round • User-Friendly Interface: Large, easy-to-read display Simple, intuitive controls Dark mode support for low-light training environments • Quick Actions: Pause/Resume functionality Quick round reset Easy timer adjustments Perfect for BJJ students, coaches, and academies looking to structure their training sessions efficiently.

Screenshots

Interval Timer4 screens
BJJ Stopwatch4 screens

Verdict

The call

The clearest difference is ads: BJJ Stopwatch at none against Interval Timer's shown. BJJ Stopwatch also leads on monetization model (free vs free with in-app purchases) and update cadence (weekly vs monthly). Interval Timer's advantage is ratings volume (392 vs 1) and device support (4 vs 2). On price, rating, review sentiment 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 10 in-app purchases, starting at $2.09 per month and BJJ Stopwatch sells 1 one-off in-app purchase. 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 BJJ Stopwatch. That said, the two scores are not equally well evidenced: Interval Timer has 392 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 97% of Interval Timer's written reviews are positive against 100% of BJJ Stopwatch's.

UpkeepUpdate frequency

Interval Timer ships an update monthly, BJJ Stopwatch weekly. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

Scorecard5 real differences · 5 level
Interval Timer versus BJJ Stopwatch: the parameters behind the verdict, then further details
ParameterInterval TimerBJJ Stopwatch
PriceFreeFree
Rating4.9 (392 ratings)5.0 (1 ratings) — better
Positive reviews96.6% of reviews100.0% of reviews — better
Number of ratings392 — better1
Update frequencyMonthlyWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.0 — better16.2
Further details — not scored
Size112 MB61 MB
Age rating4+4+
DeveloperSimpleInnovation LLCDIOGO AUGUSTO OLIVEIRA

Customer experience

Interval Timer

All ratings392 ratings
Positive99.5%
Neutral0.3%
Negative0.3%
Written reviews322 reviews
Positive96.6%
Neutral0.9%
Negative2.5%

BJJ Stopwatch

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
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

BJJ Stopwatch

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Interval Timer

Subscriptions7
  • 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 4 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 for 1 year$21.991 Year
  • Tabata Timer PRO for 1 year7 Days trial$21.991 Year
One-time3
  • Interval Timer - no Ads$2.99
  • HIIT Timer PRO Forever 30% OFF$27.99
  • Exercise Timer PRO Forever$39.99
1 purchases

BJJ Stopwatch

One-time1
  • BJJ Stopwatch PRO Unlock$4.99

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is BJJ Stopwatch free?
BJJ Stopwatch is free to download, with in-app purchases available.
Which has better reviews, Interval Timer or BJJ Stopwatch?
BJJ Stopwatch is rated higher. Interval Timer averages 4.9 out of 5 from 392 ratings, while BJJ Stopwatch averages 5.0 from 1 ratings.
Do Interval Timer or BJJ Stopwatch have ads?
Interval Timer shows ads; BJJ Stopwatch does not.
Which is updated more often, Interval Timer or BJJ Stopwatch?
Interval Timer ships an update monthly, and BJJ Stopwatch weekly. Most recently, Interval Timer was updated on November 7, 2026 and BJJ Stopwatch on November 4, 2026.

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