Comparison

Interval Timer vs Custom Fitness Timer

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

Head to head
About

Interval Timer

This app helps you manage workout intervals with customizable work and rest periods. It runs in the background and allows music playback, with options to save settings and share progress. Integrates with Apple Health for heart rate monitoring.

Highlights
  • Customizable sets, intervals, and rest times
  • Runs in background and with screen locked
  • Music playlist integration
  • Save settings as templates
  • Apple Health integration for heart rate
  • Post workouts to social media
Features
Read full description

***Free and reliable. Perfect for use at home, at the track or in the gym. We’re proud to introduce this handy little app that helps you keep track of your work and rest periods during workouts. Whether your into cycling, running, lifting weights, exercise, workout, stretching, boxing, MMA or HIT, this interval timer will prove to be an invaluable asset to you. Running foreground, background or with device locked, this reliable app allows you specify an overall time as well as program High/Low intensity interval and rest time between sets. Produced by Polycents! Key Features: - Customizable sets, high/low intensity interval and rest for your own need - Retina display, iOS4 and multitasking - Continue to run even when screen is locked - Play your song or playlist during your workout - Post your workout to Facebook or Twitter - Save settings as templates Customizable Features: - Number of Sets - Countdown Time - Set Time - Low Interval time - High Interval time - Rest Time - First Interval (low or high) - Sound Volume - Timer Sounds - Auto Lock - Vibrate - Pause during Rest - Playlist - New Each Set APPLE HEALTH: -Interval Timer can use Apple Health to show heart rate in Apple Watch App. # Subscription Details # - Monthly and annual subscriptions are available. - Payment will be charged to your iTunes account at confirmation of purchase. - Your subscription will automatically renew unless auto-renew is disabled at least 24 hours before the end of the current subscription period. - Automatic renewals will be charged at the same price you were originally charged for the subscription. - Subscriptions can be managed by going to Account Settings on the App Store after purchase. Terms of Use: https://www.iubenda.com/terms-and-conditions/18915396 Privacy Policy: https://www.iubenda.com/privacy-policy/18915396

About

Custom Fitness Timer

Create and manage custom timers for various fitness activities like countdowns, intervals, and work/rest periods. Features include intuitive navigation, a press-and-hold stopwatch, and optional sound alerts. Personalize timers with custom names and colors to match different phases.

Highlights
  • Unlimited custom timer creation
  • Countdown timer
  • Interval timer
  • Work/Rest timer
  • Press and hold stopwatch
  • Optional timer sounds
  • Color-coded timer phases
Read full description

This custom fitness timer application offers: -Intuitive navigation -A Press and Hold Stop Watch -Free unlimited new timer creation -Three timer varieties: -Countdown -Interval -Work/Rest -Optional timer end and warning sounds -Color change to indicate timer phase -Customer timer naming

Screenshots

Interval Timer4 screens
Custom Fitness Timer4 screens

Verdict

The call

The clearest difference is rating: Custom Fitness Timer at 5.0 against Interval Timer's 4.5. Custom Fitness Timer also leads on in-app purchases (none vs 8) and review sentiment (100% vs 69%). Interval Timer's advantage is ratings volume (19K vs 6) and device support (4 vs 2). On price, ads and iOS requirement 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. Interval Timer sells 6 in-app purchases, starting at $0.99 per month. Custom Fitness Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Custom Fitness Timer holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Interval Timer has 19K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 69% of Interval Timer's written reviews are positive against 100% of Custom Fitness Timer's.

UpkeepUpdate frequency

Interval Timer ships an update every 9 days, Custom Fitness Timer every 4 days. The most recent releases landed on September 25, 2026 and June 11, 2026 respectively.

Scorecard7 real differences · 3 level
Interval Timer versus Custom Fitness Timer: the parameters behind the verdict, then further details
ParameterInterval TimerCustom Fitness Timer
PriceFreeFree
Rating4.5 (19K ratings)5.0 (6 ratings) — better
Positive reviews69.0% of reviews100.0% of reviews — better
Number of ratings19K — better6
Update frequencyEvery 9 daysEvery 4 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS13.013.0
Further details — not scored
Size143 MB15 MB
Age rating4+4+
DeveloperNEO PIXEL LABS PTE. LTD.Jared Rosenthal

Customer experience

Interval Timer

All ratings19,032 ratings
Positive88.4%
Neutral3.3%
Negative8.3%
Written reviews1,236 reviews
Positive69.0%
Neutral5.7%
Negative25.2%

Custom Fitness Timer

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Interval Timer

Reported bugs

3 issues
  • Ads block functionality
  • App freezes or crashes
  • Timer doesn't work in background

Requested features

5 requests
  • Add notes to workouts
  • Provide workout history and analytics
  • Allow syncing with Apple Health
  • Improve Apple Watch integration
  • Add more customization options

Custom Fitness Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Interval Timer

Subscriptions6
  • Plus - 1 Month$0.991 Month
  • Premium - 1 Month$1.991 Month
  • Plus - 1 Month$1.991 Month
Show 3 more
  • Premium - 1 Month$2.991 Month
  • Plus - 1 Year2 variants$4.991 Year
  • Premium - 1 Year7 Days trial2 variants$9.991 Year
None

Custom Fitness Timer

No in-app purchases

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is Custom Fitness Timer free?
Custom Fitness Timer is free to download, with no in-app purchases.
Which has better reviews, Interval Timer or Custom Fitness Timer?
Custom Fitness Timer is rated higher. Interval Timer averages 4.5 out of 5 from 19K ratings, while Custom Fitness Timer averages 5.0 from 6 ratings.
Do Interval Timer or Custom Fitness Timer have ads?
Both Interval Timer and Custom Fitness Timer show ads.
Which is updated more often, Interval Timer or Custom Fitness Timer?
Interval Timer ships an update every 9 days, and Custom Fitness Timer every 4 days. Most recently, Interval Timer was updated on September 25, 2026 and Custom Fitness Timer on June 11, 2026.

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