# RUN interval vs Custom Running Intervals

The clearest difference is review sentiment: RUN interval at 77% against Custom Running Intervals's 0%. RUN interval also leads on rating (4.7 vs 2.0) and ratings volume (1K vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. RUN interval sells 2 one-off in-app purchases and Custom Running Intervals sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

RUN interval holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: RUN interval has 1K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 77% of RUN interval'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 12, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | RUN interval | Custom Running Intervals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1K ratings)](https://appshunter.io/ios/app/run-interval-running-timer/id1352270752/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/custom-running-intervals/id1533333253/reviews) |
| Number of ratings | **1K** | 1 |
| Positive reviews | **77.5% 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 | 34 MB | 11 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [CAN YOU HEAR ME SOFTWARE](https://appshunter.io/developer/711042540) | [John Mallonee](https://appshunter.io/developer/1520115384) |

## What reviewers say

### RUN interval

[App page](https://appshunter.io/ios/app/run-interval-running-timer/id1352270752)

This app simplifies interval and Fartlek running by allowing you to set custom targets for time or distance during hard, easy, and rest efforts. It offers detailed post-run summaries, audio and visual feedback, and an Apple Watch app for enhanced training.

**Highlights:** Customizable interval sessions, Time and distance targets, Distance Goal option, Audio and visual feedback, Detailed run summaries, Apple Watch app, Strava sharing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| The full RUN interval | $1.99 | one-time |
| The full RUN interval | $3.99 | one-time |


### 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 RUN interval free?

RUN interval 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, RUN interval or Custom Running Intervals?

RUN interval is rated higher. RUN interval averages 4.7 out of 5 from 1K ratings, while Custom Running Intervals averages 2.0 from 1 ratings.

### Do RUN interval or Custom Running Intervals have ads?

Neither RUN interval nor Custom Running Intervals shows ads.

### Which is updated more often, RUN interval or Custom Running Intervals?

RUN interval ships an update every 3 months, and Custom Running Intervals every 3 months. Most recently, RUN interval was updated on October 12, 2026 and Custom Running Intervals on October 9, 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.*