# IntervalTimer Duo vs Interval Timer (Simple)

The clearest difference is update cadence: Interval Timer (Simple) at weekly against IntervalTimer Duo's every 3 weeks. Interval Timer (Simple) also leads on iOS requirement (15.1 vs 26.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. IntervalTimer Duo sells 1 one-off in-app purchase and Interval Timer (Simple) sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

IntervalTimer Duo ships an update every 3 weeks, Interval Timer (Simple) weekly. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | IntervalTimer Duo | Interval Timer (Simple) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 10 MB | 28 MB |
| Requires iOS | 26.1 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kosuke konuma](https://appshunter.io/developer/1767116232) | [Domett Xing](https://appshunter.io/developer/1876098022) |

## What reviewers say

### IntervalTimer Duo

[App page](https://appshunter.io/ios/app/intervaltimer-duo/id6753626424)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


### Interval Timer (Simple)

[App page](https://appshunter.io/ios/app/interval-timer-simple/id6758968811)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Purchase | $6.99 | one-time |


## Frequently asked questions

### Is IntervalTimer Duo free?

IntervalTimer Duo is free to download, with in-app purchases available.

### Is Interval Timer (Simple) free?

Interval Timer (Simple) is free to download, with in-app purchases available.

### Do IntervalTimer Duo or Interval Timer (Simple) have ads?

Neither IntervalTimer Duo nor Interval Timer (Simple) shows ads.

### Which is updated more often, IntervalTimer Duo or Interval Timer (Simple)?

IntervalTimer Duo ships an update every 3 weeks, and Interval Timer (Simple) weekly. Most recently, IntervalTimer Duo was updated on October 9, 2026 and Interval Timer (Simple) on October 7, 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.*