Comparison

Circuit Timer vs Kruhac | Circuit Timer

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

Head to head
About

Circuit Timer

Create custom interval training routines for HIIT, Tabata, and circuit workouts. Features precise timing, voice cues, and haptic feedback. Integrates with Apple Watch and Apple Health for comprehensive tracking.

Highlights
  • Customizable interval creation
  • Voice and haptic feedback
  • Full-screen player with progress ring
  • Music integration
  • Apple Watch app
  • Apple Health integration
  • Workout history tracking
Features
Read full description

Build your own interval circuits for HIIT, Tabata, boxing rounds, EMOM and circuit training, then run them with precise timing, voice announcements, sounds and haptics. CREATE YOUR PERFECT WORKOUT Design circuits with unlimited intervals, each with its own name, duration and alarm sound. Repeat single intervals or the whole circuit, by count or for a set time. Choose from 24 alarm sounds, a spoken countdown, or both. STAY IN THE ZONE A full-screen player with a progress ring, countdown and interval timeline keeps you focused. The final seconds of each interval pulse so you're ready for what's next, and voice announcements call out each interval by name, so you never have to look at your screen. TRAIN WITH YOUR MUSIC Interval sounds play over your music instead of pausing it. The current interval and countdown stay on your Lock Screen and in the Dynamic Island, and cues keep working through phone calls. Start any circuit hands-free with Siri. APPLE WATCH Run circuits from your wrist with live heart rate, heart rate zones, active calories and a tap at every interval change. Starting a workout on your iPhone? Your watch follows along with the same taps and your heart rate. A Smart Stack card keeps the current interval in view, even with the app closed. TRACK YOUR PROGRESS See your workout history with streaks, completion stats and total training time. Save workouts to Apple Health as High Intensity Interval Training. FREE TO START • 1 circuit with every feature: alarms, haptics, voice and history CORE UPGRADE • Unlimited circuits • iCloud sync across your devices • Apple Health PRO UPGRADE • Everything in Core • Apple Watch app Both upgrades are one-time purchases. No subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Kruhac | Circuit Timer

Features
Read full description

Kruhač is the circuit-training timer built for gym trainers and group-fitness coaches who need a reliable, distraction-free tool on the gym floor. Set up in seconds Dial in your stations, rounds, workout duration, and rest time — then hit Start. Kruhač takes it from there, driving the full session loop from countdown to celebration. Never miss a transition Configurable audio warnings count down the final seconds of every phase. Choose from 5 beep styles and 5 go-signal sounds, set independently for workout and rest starts, so your athletes always know what's coming. Save your favourite workouts Store up to 4 named presets — each with its own station/round config, audio settings, and optional Spotify playlist link. Start any preset in two taps. Track your sessions Every completed workout is logged automatically. Review session history, track participant numbers, and analyse training intensity and duration trends over day, week, month, or year. Built for the gym environment Full-screen phase backgrounds switch colour for instant peripheral-vision feedback. Six colour themes, per-phase gradient styles, and adjustable font sizes keep the display readable across any lighting condition. Screen stays on throughout the entire session. Spotify integration Link a playlist to any preset. When the session starts, Spotify opens straight to your playlist. Clean and focused No ads. No account required. No data leaves your device. Everything is stored locally and deleted with the app.

Screenshots

Circuit Timer3 screens
Kruhac | Circuit Timer3 screens

Verdict

The call

The clearest difference is in-app purchases: Kruhac | Circuit Timer at none against Circuit Timer's 2. Kruhac | Circuit Timer also leads on iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support 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. Circuit Timer sells 2 one-off in-app purchases. Kruhac | Circuit Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Circuit Timer ships an update every 6 weeks, Kruhac | Circuit Timer every 2 months. Both last shipped on October 31, 2026.

Scorecard2 real differences · 7 level
Circuit Timer versus Kruhac | Circuit Timer: the parameters behind the verdict, then further details
ParameterCircuit TimerKruhac | Circuit Timer
PriceFreeFree
Rating2.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size7 MB9 MB
Age rating4+4+
DeveloperLawman Services, LLCLukas Vysusil

In-app purchases

2 purchases

Circuit Timer

One-time2
  • Core$2.99
  • Pro$4.99
None

Kruhac | Circuit Timer

No in-app purchases

Questions

Is Circuit Timer free?
Circuit Timer is free to download, with in-app purchases available.
Is Kruhac | Circuit Timer free?
Kruhac | Circuit Timer is free to download, with no in-app purchases.
Do Circuit Timer or Kruhac | Circuit Timer have ads?
Neither Circuit Timer nor Kruhac | Circuit Timer shows ads.
Which is updated more often, Circuit Timer or Kruhac | Circuit Timer?
Circuit Timer ships an update every 6 weeks, and Kruhac | Circuit Timer every 2 months. Most recently, Circuit Timer was updated on October 31, 2026 and Kruhac | Circuit Timer on October 31, 2026.

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