# Custom Interval Timers vs Intervals

The clearest difference is ratings volume: Custom Interval Timers at 14 against Intervals's 2. Intervals's advantage is iOS requirement (12.1 vs 15.1). On price, rating, update cadence and ads 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 Intervals. 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.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Custom Interval Timers | Intervals |
| --- | --- | --- |
| 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/intervals-hiit-builder-lite/id1565592459/reviews) |
| Number of ratings | **14** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 40 MB | 15 MB |
| Requires iOS | 15.1 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Alex Rich](https://appshunter.io/developer/1030627712) | [Curtis Wichern](https://appshunter.io/developer/1545032848) |

## 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


### Intervals

[App page](https://appshunter.io/ios/app/intervals-hiit-builder-lite/id1565592459)

Design custom interval training routines for high-intensity workouts. This free timer app offers large, clear visuals and audible cues for seamless transitions between exercises. It's ideal for home or outdoor fitness sessions, including Tabata and yoga.

**Highlights:** Custom interval workout creation, Large font and contrasting colors, Audible interval transition cues, Supports Tabata and yoga workouts, No account or personal data required, Offline workout storage

**Features:** macOS Compatibility

**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 Intervals free?

Intervals is free to download, with no in-app purchases.

### Which has better reviews, Custom Interval Timers or Intervals?

Custom Interval Timers and Intervals are both rated 5.0 out of 5 on the App Store, from 14 and 2 ratings respectively.

### Do Custom Interval Timers or Intervals have ads?

Both Custom Interval Timers and Intervals show ads.

### Which is updated more often, Custom Interval Timers or Intervals?

Custom Interval Timers ships an update every 4 months, and Intervals every 4 months. Most recently, Custom Interval Timers was updated on October 22, 2026 and Intervals on October 24, 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.*