# Interval Timer vs Custom Running Intervals

The clearest difference is rating: Interval Timer at 4.5 against Custom Running Intervals's 2.0. Interval Timer also leads on ratings volume (534 vs 1) and review sentiment (21% vs 0%). Custom Running Intervals's advantage is iOS requirement (16.0 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Interval Timer sells 3 in-app purchases, starting at $2.99 per month and Custom Running Intervals sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Interval Timer holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: Interval Timer has 534 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 21% of Interval Timer's written reviews are positive against 0% of Custom Running Intervals's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Interval Timer | Custom Running Intervals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (534 ratings)](https://appshunter.io/ios/app/interval-timer-run-walk-hiit/id956283665/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/custom-running-intervals/id1533333253/reviews) |
| Number of ratings | **534** | 1 |
| Positive reviews | **21.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 16 MB | 11 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Roma Sosnovsky](https://appshunter.io/developer/956283664) | [John Mallonee](https://appshunter.io/developer/1520115384) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-run-walk-hiit/id956283665)

Organize your running and high-intensity interval training sessions with ease. Quickly set up custom time intervals for running, walking, warm-ups, and cool-downs. Receive voice and vibration notifications for interval changes, and enjoy background music playback.

**Highlights:** Intuitive design, Customizable time intervals, Warm-up and cool-down timers, Voice and vibration notifications, Background music support, Foreground/background operation

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Interval Run Pro Monthly | $2.99 | per month |
| Interval Run Pro Annual | $19.99 | per year |
| Full Version | $2.99 | one-time |

**What reviewers like**

- 🚀 Simple and easy to use
- 👍 Customizable intervals
- 🚀 Straightforward app
- 👍 Works as advertised
- 👍 Great for getting back into running

**What reviewers complain about**

- 🔇 No audio prompts when screen is locked
- 🔋 High battery consumption
- 🔒 Limited free version
- 🐛 Inconsistent performance
- 🔇 Voice prompts not loud enough

**Reported bugs**

- Timer resets or freezes during workout
- Prompts not working when phone is locked or in pocket
- Unexpected interval changes or duration changes
- Compatibility issues with music playback

**Requested features**

- Option to pause/resume timer
- Larger time remaining display
- Apple Watch app
- Ability to play audio prompts even with screen off
- More interval options (run/walk/jog)


### Custom Running Intervals

[App page](https://appshunter.io/ios/app/custom-running-intervals/id1533333253)

Create custom running workouts with flexible intervals based on time or distance. Track progress, build training plans, and analyze past runs with detailed results. Your data is private and stored securely on your device or iCloud.

**Highlights:** Configurable time or distance intervals, Repeatable interval blocks, Training plan calendar, Historical run analysis, Apple Watch monitoring, iCloud synchronization, Data privacy

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Capabilities | $0.99 | one-time |


## Frequently asked questions

### Is Interval Timer free?

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

### Is Custom Running Intervals free?

Custom Running Intervals is free to download, with in-app purchases available.

### Which has better reviews, Interval Timer or Custom Running Intervals?

Interval Timer is rated higher. Interval Timer averages 4.5 out of 5 from 534 ratings, while Custom Running Intervals averages 2.0 from 1 ratings.

### Do Interval Timer or Custom Running Intervals have ads?

Neither Interval Timer nor Custom Running Intervals shows ads.

### Which is updated more often, Interval Timer or Custom Running Intervals?

Interval Timer ships an update every 3 months, and Custom Running Intervals every 3 months. Most recently, Interval Timer was updated on October 14, 2026 and Custom Running Intervals on October 9, 2026.

---

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