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 interval timer is designed for HIIT and interval training. Easily set work and rest periods, sets, and rounds to guide your workouts. It supports background operation and music playback, with an Apple Watch companion app for heart rate monitoring.
- Customizable work and rest periods
- Set number of sets and rounds
- Background operation support
- Music playback compatibility
- Apple Watch integration
- Heart rate monitoring (Apple Watch)
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This app is handy interval timer that helps you keep track of your work and rest periods during your HIIT interval training and workouts. The application is very easy to use, enter the Work, Rest, Sets, Rounds and start workout. You can listen to music during workouts or use the timer in the background. There is also app on the Apple Watch that will allow you to monitor your heart rate during workouts. Apple Watch app features: - iCloud sync with iPhone - integration with the Health app - monitoring heart rate during workouts
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 every 2 months. Interval Timer's advantage is iOS requirement (13.0 vs 15.1). 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 1 one-off in-app purchase 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 every 2 months, Interval Timer by STRNTH every 10 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Interval Timer | Interval Timer by STRNTH |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (250 ratings) — better | — |
| Positive reviews | 84.1% of reviews | — |
| Number of ratings | 250 — better | — |
| Update frequency | Every 2 months | 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 | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 12 MB | 55 MB |
| Age rating | 4+ | 12+ |
| Developer | Yosyp Hameliak | Next Big Leap Ltd |
Bugs and requests
Interval Timer
Reported bugs
9 issues- App pauses when phone is locked
- Sound notifications are inconsistent
- App doesn't run in background
- Watch app not opening or syncing
- In-app purchase issues
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- Timer not counting when phone is locked
- Voice/sound stops during exercises
- Incorrect number of sets displayed
- App crashes or freezes
Requested features
12 requests- Option for different/upbeat voice
- Ability to reorder saved timers
- Larger font size option
- Vibrate option
- Naming individual sets/exercises
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- Audio configuration for set completion
- Syncing workouts with health apps
- Option to keep app running when phone is locked
- Customizable warm-up per saved timer
- Option for giant font size for numbers
- Ability to move saved timers
- More sound options
Interval Timer by STRNTH
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Interval Timer
- Remove Ads$4.99
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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