Comparison

Custom Interval Timers vs HIITLY

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

Head to head
About

Custom Interval Timers

Design personalized interval timers for workouts or productivity. Its intuitive editor allows for custom flows with various settings like countdowns and personalized interfaces. Offers light/dark modes and an option to disable ads.

Highlights
  • Customizable interval flows
  • Intuitive timer editor
  • Count up or down timers
  • Personalized running interface
  • Light/dark mode
  • Ad-free option
Features
Read full description

Create highly customizable interval timers in a beautiful Interface. Interval timers are useful for exercise, like High-intensity interval training (HIIT) or Tabata, and can also be used to manage productivity, events, and more! This app provides a fascinatingly simple and intuitive editor for setting up your own custom timers. With just a few building blocks you can create the exact experience you want. Multiple settings to match your preferences: - Count up or down - Personalize the running interface to show what matters to you - Light/dark mode - Disable ads for free!

About

HIITLY

This interval timer app allows for quick setup of custom workouts with adjustable intervals, rest periods, and rounds. It offers voice cues or beeps, background functionality, and detailed workout history to track progress. Ideal for HIIT, Tabata, and circuit training.

Highlights
  • Customizable intervals, rest, and rounds
  • Voice cues or beeps
  • Background functionality
  • Detailed workout history and stats
  • Repeat past workouts
  • Unlimited custom timer creation
Features
Read full description

A simple and beautiful interval timer built for your workouts. Set it up in seconds: Just drag to customize your intervals workout, rest, rounds, and more. Tap to start. That’s it. Your music stays in control: ∙ Continue using your favorite music apps during workouts. ∙ Choose between voice cues or beeps for each interval. ∙ Multitask freely — audio guides keep you on track even when you switch apps or follow an online workout. No more manual tracking: ∙ Access detailed history and stats to monitor your progress. ∙ Instantly repeat past workouts without setting them up again. Perfect for HIIT, Tabata, Stretch and circuit training. The app is designed for high-intensity interval training with features made for serious results: Display rounds, cycles, and durations clearly. Built-in interval stopwatch. Fully functional in the background. Create and save unlimited custom timers. Voice guidance to keep you focused. Got ideas to make the app better? Tap “Contact Support” in the app and share them with us — we’re always working to improve our Interval Timer!

Screenshots

Custom Interval Timers4 screens
HIITLY4 screens

Verdict

The call

The clearest difference is ads: HIITLY at none against Custom Interval Timers's shown. HIITLY also leads on update cadence (every 6 days vs every 4 months) and monetization model (free vs ad-supported). Custom Interval Timers's advantage is ratings volume (14 vs 2). On price, rating, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Custom Interval Timers against 5.0 for HIITLY. That said, the two scores are not equally well evidenced: Custom Interval Timers has 14 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Custom Interval Timers ships an update every 4 months, HIITLY every 6 days. The most recent releases landed on August 24, 2026 and September 8, 2026 respectively.

Scorecard4 real differences · 6 level
Custom Interval Timers versus HIITLY: the parameters behind the verdict, then further details
ParameterCustom Interval TimersHIITLY
PriceFreeFree
Rating5.0 (14 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings14 — better2
Update frequencyEvery 4 monthsEvery 6 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size40 MB27 MB
Age rating4+4+
DeveloperAlex RichMatys Bouziane

Customer experience

Custom Interval Timers

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

HIITLY

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Custom Interval Timers

No in-app purchases

None

HIITLY

No in-app purchases

Questions

Is Custom Interval Timers free?
Custom Interval Timers is free to download, with no in-app purchases.
Is HIITLY free?
HIITLY is free to download, with no in-app purchases.
Which has better reviews, Custom Interval Timers or HIITLY?
Custom Interval Timers and HIITLY are both rated 5.0 out of 5 on the App Store, from 14 and 2 ratings respectively.
Do Custom Interval Timers or HIITLY have ads?
Custom Interval Timers shows ads; HIITLY does not.
Which is updated more often, Custom Interval Timers or HIITLY?
Custom Interval Timers ships an update every 4 months, and HIITLY every 6 days. Most recently, Custom Interval Timers was updated on August 24, 2026 and HIITLY on September 8, 2026.

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