# Custom Interval Timers vs Interval(x)

The clearest difference is ads: Interval(x) at none against Custom Interval Timers's shown. Interval(x) also leads on update cadence (every 10 days vs every 4 months) and monetization model (free vs ad-supported). Custom Interval Timers's advantage is ratings volume (14 vs 1) and iOS requirement (15.1 vs 18.1). 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 Interval(x). That said, the two scores are not equally well evidenced: Custom Interval Timers has 14 ratings behind it against 1, so its average is the more settled of the two.

Custom Interval Timers ships an update every 4 months, Interval(x) every 10 days. The most recent releases landed on August 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Custom Interval Timers | Interval(x) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (14 ratings)](https://appshunter.io/ios/app/custom-interval-timers/id1552160706/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/intervalx/id6739734149/reviews) |
| Number of ratings | **14** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | Ad-supported | **Free** |
| Size | 40 MB | 2 MB |
| Requires iOS | **15.1** | 18.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alex Rich](https://appshunter.io/developer/1030627712) | [ShapeHaven Innovations LLC](https://appshunter.io/developer/1747127977) |

## 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


### Interval(x)

[App page](https://appshunter.io/ios/app/intervalx/id6739734149)

An open-source interval timer designed for precision and privacy. Configure work and rest periods with millisecond accuracy for training or daily routines. It offers a transparent, data-free experience for users who value control and simplicity.

**Highlights:** Open Source Transparency, Zero Data Collection, Millisecond Interval Precision, Customizable Work/Rest Periods, Lightweight and Power-Efficient, Privacy-First Design

**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 Interval(x) free?

Interval(x) is free to download, with no in-app purchases.

### Which has better reviews, Custom Interval Timers or Interval(x)?

Custom Interval Timers and Interval(x) are both rated 5.0 out of 5 on the App Store, from 14 and 1 ratings respectively.

### Do Custom Interval Timers or Interval(x) have ads?

Custom Interval Timers shows ads; Interval(x) does not.

### Which is updated more often, Custom Interval Timers or Interval(x)?

Custom Interval Timers ships an update every 4 months, and Interval(x) every 10 days. Most recently, Custom Interval Timers was updated on August 24, 2026 and Interval(x) on September 18, 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.*