# Interval(x) vs Interval Timer

The clearest difference is ads: Interval(x) at none against Interval Timer's shown. Interval Timer's advantage is update cadence (every 4 days vs every 10 days) and iOS requirement (13.0 vs 18.1). On price, 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.

Interval(x) ships an update every 10 days, Interval Timer every 4 days. Both last shipped on September 18, 2026.

## The numbers

| Metric | Interval(x) | Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/intervalx/id6739734149/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Every 4 days** |
| Monetization | Free | — |
| Size | 2 MB | 23 MB |
| Requires iOS | 18.1 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ShapeHaven Innovations LLC](https://appshunter.io/developer/1747127977) | [HeungYeol Kim](https://appshunter.io/developer/1878087341) |

## What reviewers say

### 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


### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-hiit/id6763705210)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Interval(x) free?

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

### Is Interval Timer free?

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

### Do Interval(x) or Interval Timer have ads?

Interval Timer shows ads; Interval(x) does not.

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

Interval(x) ships an update every 10 days, and Interval Timer every 4 days. Most recently, Interval(x) was updated on September 18, 2026 and Interval Timer on September 18, 2026.

---

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