# Custom Interval Timers vs Simple HIIT

The clearest difference is ads: Simple HIIT at none against Custom Interval Timers's shown. Simple HIIT also leads on iOS requirement (13.0 vs 15.1). Custom Interval Timers's advantage is update cadence (every 4 months vs every 31 months). 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.

Custom Interval Timers ships an update every 4 months, Simple HIIT every 31 months. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Custom Interval Timers | Simple HIIT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (14 ratings)](https://appshunter.io/ios/app/custom-interval-timers/id1552160706/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 31 months |
| Monetization | Ad-supported | — |
| Size | 40 MB | 2 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alex Rich](https://appshunter.io/developer/1030627712) | [Beesoft Apps](https://appshunter.io/developer/1420966143) |

## 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


### Simple HIIT

[App page](https://appshunter.io/ios/app/simple-hiit-interval-timer/id6449968373)

**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 Simple HIIT free?

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

### Do Custom Interval Timers or Simple HIIT have ads?

Custom Interval Timers shows ads; Simple HIIT does not.

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

Custom Interval Timers ships an update every 4 months, and Simple HIIT every 31 months. Most recently, Custom Interval Timers was updated on September 22, 2026 and Simple HIIT on September 14, 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.*