# ChiRunning vs RUN interval

The clearest difference is price: RUN interval at Free against ChiRunning's $9.99. RUN interval also leads on rating (4.7 vs 4.2) and ratings volume (1K vs 12). ChiRunning's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.6). On ads and device support there is nothing between them.

RUN interval is free to download; ChiRunning costs $9.99 up front. RUN interval sells 2 one-off in-app purchases. ChiRunning asks for nothing beyond the download.

RUN interval holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: RUN interval has 1K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 69% of ChiRunning's written reviews are positive against 77% of RUN interval's.

ChiRunning ships an update every 13 months, RUN interval every 3 months. Both last shipped on October 15, 2026.

## The numbers

| Metric | ChiRunning | RUN interval |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.2 (12 ratings)](https://appshunter.io/ios/app/chirunning/id633529576/reviews) | **[4.7 (1K ratings)](https://appshunter.io/ios/app/run-interval-running-timer/id1352270752/reviews)** |
| Number of ratings | 12 | **1K** |
| Positive reviews | 68.5% of reviews | **77.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 149 MB | 34 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [ChiLiving, Inc.](https://appshunter.io/developer/633529579) | [CAN YOU HEAR ME SOFTWARE](https://appshunter.io/developer/711042540) |

## What reviewers say

### ChiRunning

[App page](https://appshunter.io/ios/app/chirunning/id633529576)

Learn to run faster, easier, and injury-free with this comprehensive running coach. It offers video lessons, audio guidance, and guided runs to improve your technique and achieve your running goals.

**Highlights:** Video lessons on key running focuses, Audio coaching and guided runs, Built-in metronome, GPS route mapping, Workout logging and history, Pre-run looseners and post-run stretches

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is ChiRunning free?

ChiRunning costs $9.99, with no in-app purchases.

### Is RUN interval free?

RUN interval is free to download, with in-app purchases available.

### Which has better reviews, ChiRunning or RUN interval?

RUN interval is rated higher. ChiRunning averages 4.2 out of 5 from 12 ratings, while RUN interval averages 4.7 from 1K ratings.

### Do ChiRunning or RUN interval have ads?

Neither ChiRunning nor RUN interval shows ads.

### Which is updated more often, ChiRunning or RUN interval?

ChiRunning ships an update every 13 months, and RUN interval every 3 months. Most recently, ChiRunning was updated on October 15, 2026 and RUN interval on October 15, 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.*