Comparison

Power 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.

Head to head
About

Power Interval Timer

Features
Read full description

Power Interval Timer - Professional Workout Timer for Tabata, HIIT & Custom Intervals Transform your workouts with Power Interval Timer, a minimal, fast, and powerful interval training app designed for athletes. PERFECT FOR: • Tabata workouts (20s work, 10s rest) • HIIT (High-Intensity Interval Training) • Custom interval workouts • Circuit training • Cardio sessions • Strength training intervals • Home and gym workouts KEY FEATURES: MULTIPLE DISPLAY MODES 10 unique display styles (3 free, 7 premium): • Circular, Digital, Linear (Free) • Minimal, Analog, Dual, Chronograph, Segmented Circular, Minimalist, Nested Circular (Premium) FULLY CUSTOMIZABLE • Custom colors, font sizes (24-120pt), timer sizes • Custom stroke widths, letter spacing • Personal timer images from gallery AUDIO & HAPTICS • Multiple alert sounds (beep, bubble, high_beep, pop, tabata, whistle) • Countdown beeps (3-2-1), transition sounds, vibration • Custom sound selection, test before using TV & CASTING SUPPORT • Native Apple TV (tvOS) app • AirPlay casting support • Optimized TV layouts for large displays • Perfect for group workouts and gyms FLEXIBLE TIMER CONFIGURATION • Custom work duration (1-3600s) • Custom rest duration (1-3600s) • Rounds (1-1000) • Prepare phase with countdown • Cooldown period • Skip intervals during workout • Pause and resume anytime • Reset timer to start over • Work in background (timer continues when app is in background) SAVED TIMERS • Create and save custom timers (Premium: unlimited, Free: up to 2) • Save your favorite configurations • Drag-to-reorder timer list • Swipe-to-edit or delete • Quick access to saved workouts • Reset anytime BEAUTIFUL UI • Dark mode support • Light mode support • System theme auto-detection • Smooth animations • Responsive layouts for all devices • Optimized for phones, tablets, and TVs LOCALIZATION • 12 languages: English, Hebrew, Spanish, French, German, Italian, Portuguese, Russian, Japanese, Chinese, Arabic, Korean • 17 regional variants, RTL support RESPONSIVE LAYOUTS Optimized for phones, tablets, TVs, and casting PERFORMANCE • Works completely offline • No internet connection required • Fast and lightweight • Minimal battery usage • Instant timer start PERFECT FOR: Home workouts, gym training, outdoor workouts, group fitness, personal trainers, athletes PRIVACY • No data collection • No tracking • Works offline • Your workouts stay private Power Interval Timer is the perfect companion for interval training. Whether you're doing Tabata, HIIT, or custom workouts, this app provides everything you need in a clean, distraction-free interface. --- SUPPORT & FEEDBACK Have questions or suggestions? Contact us at zuki.apps.dev@gmail.com Visit our website: https://zukiapps.com/power-interval-timer Terms of Use: https://zukiapps.com/power-interval-timer/terms Privacy Policy: https://zukiapps.com/power-interval-timer/privacy

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, 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

Power Interval Timer4 screens
Interval Timer by STRNTH4 screens

Verdict

The call

The clearest difference is iOS requirement: Interval Timer by STRNTH at 15.1 against Power Interval Timer's 17.0. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Power 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.

UpkeepUpdate frequency

Power Interval Timer ships an update weekly, Interval Timer by STRNTH every 10 days. Both last shipped on October 25, 2026.

Scorecard1 real difference · 5 level
Power Interval Timer versus Interval Timer by STRNTH: the parameters behind the verdict, then further details
ParameterPower Interval TimerInterval Timer by STRNTH
PriceFreeFree
Update frequencyWeekly — betterEvery 10 days
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.015.1 — better
Further details — not scored
Size37 MB55 MB
Age rating4+12+
DeveloperLior ZukmanNext Big Leap Ltd

In-app purchases

1 purchases

Power Interval Timer

One-time1
  • Premium Upgrade$2.99
1 purchases

Interval Timer by STRNTH

One-time1
  • Remove ads$9.99

Questions

Is Power Interval Timer free?
Power 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 Power Interval Timer or Interval Timer by STRNTH have ads?
Both Power Interval Timer and Interval Timer by STRNTH show ads.
Which is updated more often, Power Interval Timer or Interval Timer by STRNTH?
Power Interval Timer ships an update weekly, and Interval Timer by STRNTH every 10 days. Most recently, Power Interval Timer was updated on October 25, 2026 and Interval Timer by STRNTH on October 25, 2026.

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