Comparison

Interval Timer vs Interval Timer by STRNTH

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Interval Timer

Features
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Transform your workouts with Interval Timer โ€“ the beautifully designed, feature-rich timer built for athletes, fitness enthusiasts, and personal trainers. QUICK START IN SECONDS Jump straight into your workout with intuitive controls. Set work and rest durations, number of exercises, rounds, and rest between rounds โ€“ all from one elegant screen. Your total workout time calculates automatically. CUSTOMISABLE WORKOUT ROUNDS Put multiple work and rest events in each round, re-order them to fit your needs. BUILT-IN WORKOUT PRESETS Get started instantly with popular training methods: - Tabata (20s work / 10s rest) - EMOM (Every Minute on the Minute) - 30:15:10:5 Progressive Intervals - Boxing - And more... SAVE YOUR CUSTOM WORKOUTS Create and save unlimited workout templates. Add warm-up and cool-down periods, build complex interval sequences, and reload your favorites with one tap. AUDIO CUES THAT KEEP YOU FOCUSED Never miss a transition with clear beep cues and spoken countdowns (3, 2, 1). Audio plays through silent mode so you can focus on your form, not your phone. TRACK YOUR PROGRESS View your workout history with detailed analytics and a visual calendar. See your streaks, total workout time, and repeat past workouts with a single tap. PT MODE FOR TRAINERS Perfect for personal trainers and coaches. Switch to PT Mode and workouts won't count toward your personal stats โ€“ ideal when demonstrating exercises for clients. THOUGHTFUL FEATURES - Daily workout reminders - Keep screen awake during workouts - Auto-pause when backgrounded - Works beautifully on iPhone and iPad - Landscape and portrait support for iPad Whether you're doing HIIT at home, timing circuits at the gym, or coaching clients, Interval Timer gives you the flexibility and polish you need to train smarter. For Terms of Use, please visit https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ For Privacy Policy, please visit https://parallelconcepts.co/intervaltimer-privacy-policy Download now and take control of your intervals.

About

Interval Timer by STRNTH

Features
Read full description

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, color, 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 color 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. - An optional get-ready countdown before you start, from 3 to 30 seconds. - Choose what the screen shows: interval time, total time, interval count, the clock or heart rate. MORE TOOLS - A countdown tab with saved presets for a fast single timer. - Workout reminders on the days and time you choose. - A stopwatch with laps that highlight your fastest and slowest split. - Workout history that logs every session so you can look back and run any timer again. - Light and dark themes and your own custom step colors. - Share a timer as a link or a file, and import timers others send you. ON THE BIG SCREEN - Show a running timer on a TV with AirPlay, Chromecast or a wired adapter. - Your phone stays the controller while the big screen stays in step. ACROSS YOUR DEVICES - An Apple Watch companion runs your timers on the wrist with color 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. One payment removes ads for good. No sign up, no accounts and no subscriptions. Your timers stay on your device. Part of the STRNTH family of training apps.

Screenshots

Interval Timer4 screens
Interval Timer by STRNTH4 screens

Verdict

The call

Interval Timer and Interval Timer by STRNTH are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Interval Timer sells 2 in-app purchases, starting at $2.99 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.

UpkeepUpdate frequency

Interval Timer ships an update every 5 weeks, Interval Timer by STRNTH every 3 weeks. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

ScorecardNo meaningful differences
Interval Timer versus Interval Timer by STRNTH: the parameters behind the verdict, then further details
ParameterInterval TimerInterval Timer by STRNTH
PriceFreeFree
Update frequencyEvery 5 weeksEvery 3 weeks โ€” better
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch โ€” better
Requires iOS15.115.1
Further details โ€” not scored
Size51 MB56 MB
Age rating4+12+
DeveloperNadim ElsayedNext Big Leap Ltd

In-app purchases

2 purchases

Interval Timer

Subscriptions2
  • Monthly Premium$2.991 Month
  • Yearly Premium3 Days trial$19.991 Year
1 purchases

Interval Timer by STRNTH

One-time1
  • Remove ads$9.99

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is Interval Timer by STRNTH free?
Interval Timer by STRNTH is free to download, with in-app purchases available.
Do Interval Timer or Interval Timer by STRNTH have ads?
Both Interval Timer and Interval Timer by STRNTH show ads.
Which is updated more often, Interval Timer or Interval Timer by STRNTH?
Interval Timer ships an update every 5 weeks, and Interval Timer by STRNTH every 3 weeks. Most recently, Interval Timer was updated on November 5, 2026 and Interval Timer by STRNTH on November 10, 2026.

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