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 helps you manage workout intervals with customizable work and rest periods. It runs in the background and allows music playback, with options to save settings and share progress. Integrates with Apple Health for heart rate monitoring.
- Customizable sets, intervals, and rest times
- Runs in background and with screen locked
- Music playlist integration
- Save settings as templates
- Apple Health integration for heart rate
- Post workouts to social media
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***Free and reliable. Perfect for use at home, at the track or in the gym. We’re proud to introduce this handy little app that helps you keep track of your work and rest periods during workouts. Whether your into cycling, running, lifting weights, exercise, workout, stretching, boxing, MMA or HIT, this interval timer will prove to be an invaluable asset to you. Running foreground, background or with device locked, this reliable app allows you specify an overall time as well as program High/Low intensity interval and rest time between sets. Produced by Polycents! Key Features: - Customizable sets, high/low intensity interval and rest for your own need - Retina display, iOS4 and multitasking - Continue to run even when screen is locked - Play your song or playlist during your workout - Post your workout to Facebook or Twitter - Save settings as templates Customizable Features: - Number of Sets - Countdown Time - Set Time - Low Interval time - High Interval time - Rest Time - First Interval (low or high) - Sound Volume - Timer Sounds - Auto Lock - Vibrate - Pause during Rest - Playlist - New Each Set APPLE HEALTH: -Interval Timer can use Apple Health to show heart rate in Apple Watch App. # Subscription Details # - Monthly and annual subscriptions are available. - Payment will be charged to your iTunes account at confirmation of purchase. - Your subscription will automatically renew unless auto-renew is disabled at least 24 hours before the end of the current subscription period. - Automatic renewals will be charged at the same price you were originally charged for the subscription. - Subscriptions can be managed by going to Account Settings on the App Store after purchase. Terms of Use: https://www.iubenda.com/terms-and-conditions/18915396 Privacy Policy: https://www.iubenda.com/privacy-policy/18915396
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 iOS requirement: Interval Timer at 13.0 against Interval Timer by STRNTH's 15.1. On price, update cadence, ads 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 6 in-app purchases, starting at $0.99 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 every 9 days, Interval Timer by STRNTH every 10 days. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.
| Parameter | Interval Timer | Interval Timer by STRNTH |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (19K ratings) — better | — |
| Positive reviews | 72.9% of reviews | — |
| Number of ratings | 19K — better | — |
| Update frequency | Every 9 days — better | Every 10 days |
| 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 | 143 MB | 55 MB |
| Age rating | 4+ | 12+ |
| Developer | NEO PIXEL LABS PTE. LTD. | Next Big Leap Ltd |
Bugs and requests
Interval Timer
Reported bugs
3 issues- Ads block functionality
- App freezes or crashes
- Timer doesn't work in background
Requested features
5 requests- Add notes to workouts
- Provide workout history and analytics
- Allow syncing with Apple Health
- Improve Apple Watch integration
- Add more customization options
Interval Timer by STRNTH
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Interval Timer
- Plus - 1 Month$0.991 Month
- Premium - 1 Month$1.991 Month
- Plus - 1 Month$1.991 Month
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- Premium - 1 Month$2.991 Month
- Plus - 1 Year2 variants$4.991 Year
- Premium - 1 Year7 Days trial2 variants$9.991 Year
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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