Comparison

Intervals One vs Gym Timer

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

Head to head
About

Intervals One

Features
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Intervals One โ€“ Your Interval Training Coach The interval timer designed for real workouts. Crystal-clear voice guidance, effortless setup, and intelligent features that adapt to how you train. No clutter. No complexity. Just smart interval training that helps you build better workouts and stay focused. TWO MODES. INFINITE POSSIBILITIES. Simple Mode: Perfect for quick sessions. Set your timing for all exercises at once, hit start, and let the voice guidance coach you through every phase. Ideal for consistent HIIT, Tabata, circuits, or bodyweight training. Premium users can customize each exercise stage with specific movements, reps, and effort levels. Advanced Mode: Complete control. Customize every exercise with individual timings per round, choose specific movements from our exercise library, set rep targets or effort levels, and build structured training programs that match your goals. WHY ATHLETES CHOOSE INTERVALS ONE Clear Voice Coaching: Professional voiceovers - announce every phase, exercise, and transition. Train eyes-free with clear, motivating guidance that keeps you in the zone. Intuitive Design: Create workouts in seconds with our distraction-free interface. No complicated builders or endless menus - just fast, focused setup that gets you moving. Works Everywhere: Train offline, indoors, or outdoors. No internet required once downloaded. Works perfectly with AirPods, speakers, or silent mode with haptics. PERFECT FOR - HIIT & Tabata intervals - AMRAP (As Many Reps As Possible) - Circuit training - Bodyweight workouts - Strength & conditioning - Cardio intervals - Functional fitness - CrossFit-style training SMART COACHING FEATURES - Next exercise cues so you're always prepared - Halfway alerts to pace yourself - Round completion announcements - Customizable countdown timers - Haptic feedback for silent training - Adjustable audio cues - Round recovery periods PRIVACY FIRST Your workout data stays yours. No account required. Optional iCloud sync keeps your workouts and history private and secure across your devices. START FREE Get unlimited basic interval workouts with full timing customization and premium voice guidance - completely free. Upgrade to Premium when you're ready for exercise selection, rep tracking, and advanced per-round customization. Download Intervals One and experience smarter interval training today. Privacy Policy: https://www.ninetysixsoftware.co.uk/hiit-privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Gym Timer

Features
Read full description

The only gym timer that warns you BEFORE time is up. Get in position, refocus, and start your next set fully ready โ€” not scrambling. Most timers beep when rest is already over. You're distracted. Out of position. The next set starts badly. Gym Timer: Rest & Get Ready fixes that with smart pre-alerts โ€” a warning sound and vibration BEFORE your rest ends, so you're always ready when it counts. KEY FEATURES โ€ข Smart Pre-Alerts โ€” Get warned 5โ€“60s before the timer ends. Never get caught off guard again. โ€ข Live Activity โ€” Timer always visible on Lock Screen and Dynamic Island. No need to unlock. โ€ข Apple Watch โ€” Dedicated app, works standalone or synced. Your timer, always on your wrist. โ€ข One-Tap Start โ€” Predefined presets, zero setup. Tap and rest. โ€ข Rep Counter โ€” Auto-tracks your sets. One tap to repeat. โ€ข Custom Sounds โ€” Pick your own warning and completion audio. โ€ข Themes โ€” Personalize colors and look. โ€ข Minimal Design โ€” No ads cluttering your rest. No distractions. Just your timer. WHY GYM TIMER? This isn't another interval timer. It's a training rhythm tool. The pre-alert is the difference: you know it's almost time BEFORE the beep, so you're always in position and mentally ready. โ€ข Never miss another set โ€ข Stay locked in between sets โ€ข Built for lifting, bodybuilding, CrossFit, and functional training Know before it ends. Stay ready. Train in flow. Terms of Use: https://gym-timer-app-ads.web.app/terms.html Privacy Policy: https://gym-timer-app-ads.web.app/privacy.html

Screenshots

Intervals One4 screens
Gym Timer4 screens

Verdict

The call

The clearest difference is update cadence: Gym Timer at fortnightly against Intervals One's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

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. Intervals One sells 3 in-app purchases, starting at $1.99 per month and Gym Timer sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Intervals One ships an update every 4 months, Gym Timer fortnightly. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.

Scorecard1 real difference ยท 5 level
Intervals One versus Gym Timer: the parameters behind the verdict, then further details
ParameterIntervals OneGym Timer
PriceFreeFree
Update frequencyEvery 4 monthsFortnightly โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, Apple Watch โ€” better
Requires iOS17.016.1 โ€” better
Further details โ€” not scored
Size64 MB66 MB
Age rating4+4+
DeveloperNinety Six Software LtdJustCodeMobile

In-app purchases

3 purchases

Intervals One

Subscriptions2
  • Pro Monthly7 Days trial$1.991 Month
  • Pro Annual$14.991 Year
One-time1
  • Pro Lifetime$19.99
3 purchases

Gym Timer

Subscriptions2
  • Monthly Pro7 Days trial$2.991 Month
  • Annual Pro7 Days trial$9.991 Year
One-time1
  • Lifetime Pro$22.99

Questions

Is Intervals One free?
Intervals One is free to download, with in-app purchases available.
Is Gym Timer free?
Gym Timer is free to download, with in-app purchases available.
Do Intervals One or Gym Timer have ads?
Neither Intervals One nor Gym Timer shows ads.
Which is updated more often, Intervals One or Gym Timer?
Intervals One ships an update every 4 months, and Gym Timer fortnightly. Most recently, Intervals One was updated on October 9, 2026 and Gym Timer on October 12, 2026.

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