Comparison

Workout Timer Interval & HIIT vs Circuit Pro

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

Head to head
About

Workout Timer Interval & HIIT

This app offers customizable interval timers for various training styles like HIIT, Tabata, and Crossfit. Track your progress, enjoy background music, and switch between light and dark modes to enhance your fitness routine.

Highlights
  • Customizable interval timers
  • Supports HIIT, Tabata, WOD, Crossfit, EMOM, AMRAP
  • Historical workout tracking
  • Background music playback
  • Light and dark mode themes
  • Intuitive interface
Features
Read full description

The simplest way to time any workout. Set your intervals, hit start, and go. Free forever - no trials, no expiry, no catch. Whether you're doing HIIT, Tabata, boxing rounds, running intervals, circuit training, or just need a reliable stopwatch, Interval Trainer gets out of your way and lets you focus on the work. FREE - FOREVER - Unlimited interval timers with custom rounds, work, and rest periods - Segment-based timing with Warm-up, Prep, Work, Rest, and Cool-down phases - Color and sound cues so you never miss a transition - Runs in the background while your music keeps playing - 6 themes and light/dark mode PREMIUM - Workout history - track progress and stay consistent - Custom workout builder - save and reuse your favourite sessions - Ad-free experience Download free and start your first session in under a minute. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.termsfeed.com/live/6125dabf-a638-49d7-b81e-118dfbb88572

About

Circuit Pro

This app provides a customizable interval timer for various training styles like HIIT and circuit workouts. It features motivating voice cues, custom circuit building, and HealthKit integration for tracking progress. Focus on your training with a clean interface and no ads.

Highlights
  • Customizable workout circuits
  • Motivating coach voice cues
  • HealthKit integration
  • iCloud preset sync
  • Clean, focused interface
  • Works with screen locked
Features
Read full description

The powerful HIIT, EMOM & interval timer built for serious training. Build your own workout circuits with warm-ups, exercises, rest periods, and multiple rounds — all with energizing coach voice cues to keep you on track. Whether you're doing HIIT, strength circuits, conditioning, CrossFit-style intervals, home workouts, or gym training, Circuit Pro makes timing effortless so you can focus on pushing your limits. ◆ Build Custom Circuits Fast Create a full workout in seconds: • Warm-up duration • Number of exercises • Exercise length • Rest between exercises • Rest between circuits • Number of circuits • Optional exercise names • Coach voice cues + sound effects Create once, save forever. ◆ Motivating Coach Audio Stay focused with high-energy voice prompts: • 3-2-1 countdowns • “Go!”, “Rest”, “Get ready” • Circuit transitions • Workout complete • Optional motivational cues Perfect for training with your phone in your pocket. ◆ iCloud Preset Sync Your saved circuits automatically sync across all your devices. Start a workout on your iPhone, review it later on another device — seamless. ◆ HealthKit Integration (Optional) Link your circuits with Apple Watch workouts and view: • Calories burned • Heart rate stats • Workout duration • Training history See what you achieved last week, last month, or yesterday. ◆ Clean, Focused Workout Interface Large timer. Clear phases. Smooth transitions. No ads. No clutter. Pure training focus. Perfect For: • HIIT workouts • Interval training • Circuit fitness • Strength conditioning • Home & gym workouts • Fat burning sessions • Cardio intervals • CrossFit-style training Why Athletes Love Circuit Pro • Super fast to set up • Extremely easy to read mid-workout • Voice cues keep you moving • Works with screen locked • Designed for HIIT, but perfect for any interval training Unlock your best training sessions with Circuit Pro — the interval timer built for results.

Screenshots

Workout Timer Interval & HIIT4 screens
Circuit Pro4 screens

Verdict

The call

The clearest difference is review sentiment: Circuit Pro at 100% against Workout Timer Interval & HIIT's 53%. 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. Workout Timer Interval & HIIT sells 3 in-app purchases, starting at $2.99 per month and Circuit Pro sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Workout Timer Interval & HIIT ships an update fortnightly, Circuit Pro every 4 weeks. The most recent releases landed on October 21, 2026 and October 1, 2026 respectively.

Scorecard1 real difference · 9 level
Workout Timer Interval & HIIT versus Circuit Pro: the parameters behind the verdict, then further details
ParameterWorkout Timer Interval & HIITCircuit Pro
PriceFreeFree
Rating4.5 (145 ratings) — better—
Positive reviews53.2% of reviews100.0% of reviews — better
Number of ratings145 — better—
Update frequencyFortnightly — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS16.1 — better17.0
Further details — not scored
Size29 MB14 MB
Age rating4+4+
DeveloperSimon JansenRidwan Al-Mansur

Customer experience

Workout Timer Interval & HIIT

All ratings145 ratings
Positive86.9%
Neutral5.5%
Negative7.6%
Written reviews47 reviews
Positive53.2%
Neutral14.9%
Negative31.9%

Circuit Pro

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Workout Timer Interval & HIIT

Subscriptions2
  • Monthly subscription$2.991 Month
  • Premium Yearly$14.991 Year
One-time1
  • Premium$29.99
3 purchases

Circuit Pro

Subscriptions3
  • Weekly Premium$0.997 Days
  • Monthly Premium$3.991 Month
  • Annual Premium$39.991 Year

Questions

Is Workout Timer Interval & HIIT free?
Workout Timer Interval & HIIT is free to download, with in-app purchases available.
Is Circuit Pro free?
Circuit Pro is free to download, with in-app purchases available.
Do Workout Timer Interval & HIIT or Circuit Pro have ads?
Neither Workout Timer Interval & HIIT nor Circuit Pro shows ads.
Which is updated more often, Workout Timer Interval & HIIT or Circuit Pro?
Workout Timer Interval & HIIT ships an update fortnightly, and Circuit Pro every 4 weeks. Most recently, Workout Timer Interval & HIIT was updated on October 21, 2026 and Circuit Pro on October 1, 2026.

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