Interval Timer vs Justfit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Justfit
This app provides customizable interval timers for various activities like HIIT, Tabata, meditation, and studying. Track your progress with detailed history and analytics, and personalize your experience with custom sounds and colors.
- Fully customizable interval timers
- Full-screen circular countdown/countup stopwatch
- Pre-made templates for HIIT, Tabata, Meditation
- Customizable audio for intervals, sets, and rest
- Detailed progress tracking and analytics
- Timer sharing via export/import
- Multilanguage support
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Justfit is the interval timer that stays out of your way. Build a circuit, Tabata, HIIT or boxing timer in seconds and let it run in the background with big, readable digits. WHAT YOU GET • Unlimited intervals, sets and rest — name and color each one • Voice announcements and 3-2-1 countdown, so you never look at the screen • Sounds that cut through your music, then get out of the way • Apple Watch app and complication, Live Activity on the Lock Screen • History, streaks and weekly insights • Widgets and Siri: "Start Tabata in Justfit" FREE VS PRO Free: 3 timers, all basic sounds, 7-day history. Pro unlocks unlimited timers, templates, premium sounds and full insights — monthly, yearly or one-time. PRIVACY No account, no tracking. Your timers stay on your device and, if you choose, in your iCloud. Terms of Use (EULA): https://www.nahitfidanci.com/justfit/terms Privacy Policy: https://www.nahitfidanci.com/justfit/privacy
Screenshots
Verdict
The clearest difference is ads: Justfit at none against Interval Timer's shown. Justfit also leads on update cadence (every 3 days vs monthly). Interval Timer's advantage is ratings volume (379 vs 1). 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
Both are free to download. Interval Timer sells 12 in-app purchases, starting at $2.09 per month and Justfit sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for Interval Timer against 5.0 for Justfit. That said, the two scores are not equally well evidenced: Interval Timer has 379 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 Justfit's.
Interval Timer ships an update monthly, Justfit every 3 days. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.
| Parameter | Interval Timer | Justfit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (379 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 96.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 379 — better | 1 |
| Update frequency | Monthly | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod, Apple Watch |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 113 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | SimpleInnovation LLC | Ferda Nahit Fidanci |
Customer experience
Interval Timer
Justfit
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
Justfit
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Interval Timer
- 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
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- 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
- Interval Timer - no Ads$2.99
- HIIT Timer PRO Forever 30% OFF$27.99
- HIIT Timer PRO Forever 25% OFF$29.99
Show 1 moreShow fewer
- Exercise Timer PRO Forever$39.99
Justfit
- Monthly$1.991 Month
- Annual$7.991 Year
- Lifetime Access$3.99
- Lifetime Access$7.99
Questions
Is Interval Timer free?
Is Justfit free?
Which has better reviews, Interval Timer or Justfit?
Do Interval Timer or Justfit have ads?
Which is updated more often, Interval Timer or Justfit?
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