# Ultra Intervals Workout Timer vs Custom Interval Timers

The clearest difference is rating: Custom Interval Timers at 5.0 against Ultra Intervals Workout Timer's 4.5. Custom Interval Timers also leads on review sentiment (100% vs 89%) and ratings volume (14 vs 4). Ultra Intervals Workout Timer's advantage is ads (none vs shown) and update cadence (every 6 days vs every 4 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 holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 14 respectively. Written reviews point the same way: 89% of Ultra Intervals Workout Timer's written reviews are positive against 100% of Custom Interval Timers's.

Ultra Intervals Workout Timer ships an update every 6 days, Custom Interval Timers every 4 months. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Ultra Intervals Workout Timer | Custom Interval Timers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/ultra-intervals-workout-timer/id1486825021/reviews) | **[5.0 (14 ratings)](https://appshunter.io/ios/app/custom-interval-timers/id1552160706/reviews)** |
| Number of ratings | 4 | **14** |
| Positive reviews | 88.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 4 months |
| Monetization | **Free** | Ad-supported |
| Size | 9 MB | 40 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tapio Kuusisto](https://appshunter.io/developer/978979861) | [Alex Rich](https://appshunter.io/developer/1030627712) |

## What reviewers say

### Ultra Intervals Workout Timer

[App page](https://appshunter.io/ios/app/ultra-intervals-workout-timer/id1486825021)

Create and customize interval training routines with simple text input. This app guides you through workouts with spoken cues, sound alerts, and large visual displays, allowing you to focus on your exercise. It supports various training styles like HIIT and Tabata, and can even manage music playback during sessions.

**Highlights:** Create custom interval workouts using plain text, Spoken exercise names, times, and notifications, Customizable sound cues and visual displays, Support for HIIT, Tabata, and circuit training, Mix timed and non-timed workout sections, Music ducking for notifications, Pre-loaded sample workouts

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Ultra Intervals Workout Timer free?

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

### Is Custom Interval Timers free?

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

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

Custom Interval Timers is rated higher. Ultra Intervals Workout Timer averages 4.5 out of 5 from 4 ratings, while Custom Interval Timers averages 5.0 from 14 ratings.

### Do Ultra Intervals Workout Timer or Custom Interval Timers have ads?

Custom Interval Timers shows ads; Ultra Intervals Workout Timer does not.

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

Ultra Intervals Workout Timer ships an update every 6 days, and Custom Interval Timers every 4 months. Most recently, Ultra Intervals Workout Timer was updated on October 6, 2026 and Custom Interval Timers on October 5, 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.*