Interval Timer vs Interval Timer by STRNTH
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.
Interval Timer by STRNTH
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Interval Timer by STRNTH is a free interval timer for HIIT, Tabata, EMOM, AMRAP, boxing rounds, running intervals, stretching and more. Build any timer you want with no fixed structure, then run it hands-free and read it from across the room. BUILD ANY TIMER - Add as many steps as you like, each with its own label, duration, colour, sound and voice. - Group steps into repeat blocks so a round loops as many times as you need. - Link separate timers together to chain a warm-up, workout and cool-down into one session. - Start from a template: Couch to 5K, Tabata, HIIT, 7 minute workout, EMOM, AMRAP, boxing rounds, Pomodoro, box breathing and full body stretch. RUN IT HANDS-FREE - A giant readout inside a progress ring, sized to read from across the gym. - Full-screen colour per step so you know your phase at a glance. - Voice reads each step and announces what is next before it arrives. - Sound cues on the last three seconds, plus beep, go, switch, rest, bell, horn, gong and whistle tones. Import your own sounds too. - Optional spoken 3-2-1 countdown, a cadence metronome from 60 to 180 BPM and haptic feedback. - Choose what the screen shows: interval time, total time, interval count, the clock or heart rate. MORE TOOLS - A countdown tab with quick presets for a fast single timer. - A stopwatch with laps that highlight your fastest and slowest split. - Light and dark themes and your own custom step colours. - Share a timer as a link or a file, and import timers others send you. ACROSS YOUR DEVICES - An Apple Watch companion runs your timers on the wrist with colour and haptics. - Pair a Bluetooth heart rate strap to see live BPM, zones and more while you train. - Save finished sessions to Apple Health as workouts. - Back up your timers to your private iCloud. FREE, WITH A ONE-TIME UPGRADE Interval Timer is free and supported by ads. A single 9.99 purchase removes ads for good. No accounts, no subscriptions, no cloud sign-in. Your timers stay on your device. Part of the STRNTH family of training apps.
Screenshots
Verdict
The clearest difference is update cadence: Interval Timer by STRNTH at every 10 days against Interval Timer's monthly. On price, ads, in-app purchases and device support 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 Interval Timer by STRNTH sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Interval Timer ships an update monthly, Interval Timer by STRNTH every 10 days. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.
| Parameter | Interval Timer | Interval Timer by STRNTH |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (379 ratings) — better | — |
| Positive reviews | 96.5% of reviews | — |
| Number of ratings | 379 — better | — |
| Update frequency | Monthly | Every 10 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 113 MB | 55 MB |
| Age rating | 4+ | 12+ |
| Developer | SimpleInnovation LLC | Next Big Leap Ltd |
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
Interval Timer by STRNTH
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
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- Exercise Timer PRO Forever$39.99
Interval Timer by STRNTH
- Remove ads$9.99
Questions
Is Interval Timer free?
Is Interval Timer by STRNTH free?
Do Interval Timer or Interval Timer by STRNTH have ads?
Which is updated more often, Interval Timer or Interval Timer by STRNTH?
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