Comparison

Circuit Clock vs Circuit Timer

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

Head to head
About

Circuit Clock

Features
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Circuit Clock is a simple tool for complex workout needs. It has features such as: - Countdown timer - Rest intervals - Fixed or unlimited rounds - Warning / End of round tones

About

Circuit Timer

Features
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Build custom interval training circuits and run them with precision timing, voice announcements, and haptic feedback. CREATE YOUR PERFECT WORKOUT Design circuits with unlimited intervals, each with its own name, duration, and alarm sound. Set loop counts on individual intervals or the entire circuit. Choose from 24 alarm sounds, enable voice countdown, or both. STAY IN THE ZONE A full-screen player with a progress ring, countdown timer, and interval timeline keeps you focused. The last 3 seconds pulse to keep you ready for what's next. Voice announcements call out interval names so you never have to look at your screen. NEVER MISS A BEAT Live Activities put your timer on the Lock Screen and Dynamic Island. Background notifications keep you on track even when you switch apps. Start circuits hands-free with Siri. APPLE WATCH Run circuits from your wrist with real-time heart rate zones, active calories, and haptic alerts. Your watch keeps going even when the screen dims with Always-On Display support. TRACK YOUR PROGRESS View workout history with streaks, completion stats, and total training time. Save workouts to Apple Health as High Intensity Interval Training sessions. FREE TO START - 1 circuit with full features โ€” alarms, haptics, voice, history CORE UPGRADE - Unlimited circuits - iCloud sync across devices - Apple Health integration PRO UPGRADE - Everything in Core - Apple Watch companion app Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Circuit Clock4 screens
Circuit Timer3 screens

Verdict

The call

The clearest difference is in-app purchases: Circuit Clock at none against Circuit Timer's 2. Circuit Clock also leads on update cadence (every 10 days vs monthly) and iOS requirement (15.0 vs 26.0). On price, ads 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. Circuit Timer sells 2 one-off in-app purchases. Circuit Clock asks for nothing beyond the download.

UpkeepUpdate frequency

Circuit Clock ships an update every 10 days, Circuit Timer monthly. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

Scorecard3 real differences ยท 3 level
Circuit Clock versus Circuit Timer: the parameters behind the verdict, then further details
ParameterCircuit ClockCircuit Timer
PriceFreeFree
Update frequencyEvery 10 days โ€” betterMonthly
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.0 โ€” better26.0
Further details โ€” not scored
Size5 MB7 MB
Age rating4+4+
DeveloperStephen LudinLawman Services, LLC

In-app purchases

None

Circuit Clock

No in-app purchases

2 purchases

Circuit Timer

One-time2
  • Core$2.99
  • Pro$4.99

Questions

Is Circuit Clock free?
Circuit Clock is free to download, with no in-app purchases.
Is Circuit Timer free?
Circuit Timer is free to download, with in-app purchases available.
Do Circuit Clock or Circuit Timer have ads?
Neither Circuit Clock nor Circuit Timer shows ads.
Which is updated more often, Circuit Clock or Circuit Timer?
Circuit Clock ships an update every 10 days, and Circuit Timer monthly. Most recently, Circuit Clock was updated on October 10, 2026 and Circuit Timer on October 5, 2026.

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