# Custom Interval Timers vs HIITLY

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.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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.

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.

## The numbers

| Metric | Custom Interval Timers | HIITLY |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (14 ratings)](https://appshunter.io/ios/app/custom-interval-timers/id1552160706/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/hiitly-smart-workout-timer/id6743633814/reviews) |
| Number of ratings | **14** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | Ad-supported | **Free** |
| Size | 40 MB | 27 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alex Rich](https://appshunter.io/developer/1030627712) | [Matys Bouziane](https://appshunter.io/developer/1785637310) |

## What reviewers say

### Custom Interval Timers

[App page](https://appshunter.io/ios/app/custom-interval-timers/id1552160706)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### HIITLY

[App page](https://appshunter.io/ios/app/hiitly-smart-workout-timer/id6743633814)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*