# Half Marathon 13.1 Trainer vs RUN interval

The clearest difference is ads: RUN interval at none against Half Marathon 13.1 Trainer's shown. RUN interval also leads on review sentiment (77% vs 55%). Half Marathon 13.1 Trainer's advantage is ratings volume (5.6K vs 1K). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. Half Marathon 13.1 Trainer sells 5 in-app purchases, starting at $4.99 per month and RUN interval sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Half Marathon 13.1 Trainer against 4.7 for RUN interval. That said, the two scores are not equally well evidenced: Half Marathon 13.1 Trainer has 5.6K ratings behind it against 1K, so its average is the more settled of the two. Written reviews are what separate them: 55% of Half Marathon 13.1 Trainer's written reviews are positive against 77% of RUN interval's.

Half Marathon 13.1 Trainer ships an update every 6 weeks, RUN interval every 3 months. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Half Marathon 13.1 Trainer | RUN interval |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (5.6K ratings)](https://appshunter.io/ios/app/half-marathon-131-trainer/id514647091/reviews) | [4.7 (1K ratings)](https://appshunter.io/ios/app/run-interval-running-timer/id1352270752/reviews) |
| Number of ratings | **5.6K** | 1K |
| Positive reviews | 55.4% of reviews | **77.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 319 MB | 34 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Zen Labs](https://appshunter.io/developer/485971738) | [CAN YOU HEAR ME SOFTWARE](https://appshunter.io/developer/711042540) |

## What reviewers say

### Half Marathon 13.1 Trainer

[App page](https://appshunter.io/ios/app/half-marathon-131-trainer/id514647091)

This app guides beginners through a 14-week program to train for a half marathon using a run-walk method. It offers audio coaching, progress tracking, and community support to help users complete their first 13.1-mile race.

**Highlights:** 14-week run-walk training program, Audio coach and alerts, Run mapping, Health app integration, Community forums, Music integration

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zen Unlimited Pass Monthly | $4.99 | per month |
| Unlock Your Potential | $29.99 | per 3 months |
| Unlock Your Potential | $29.99 | per 3 months |
| Zen Unlimited Pass Annual | $74.99 | per year |
| Unlock Workout List | $0.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Helpful for beginners
- 👍 Great for training and motivation
- 👍 Integrates well with Apple Watch and Fitness
- 👍 Customizable music playback

**What reviewers complain about**

- 🐛 Occasional syncing and tracking issues
- 🔋 Drains battery life
- 💰 Subscription model change frustrates some users
- 💰 Paid app now requires subscription for full access

**Reported bugs**

- App crashes or freezes during workouts
- Inconsistent distance and time tracking
- Syncing issues with Apple Watch

**Requested features**

- Option to view GPS route history
- Ability to customize training days and schedule
- Integration with more fitness tracking devices
- Detailed performance metrics and analytics


### 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 Half Marathon 13.1 Trainer free?

Half Marathon 13.1 Trainer is free to download, with in-app purchases available.

### Is RUN interval free?

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

### Which has better reviews, Half Marathon 13.1 Trainer or RUN interval?

Half Marathon 13.1 Trainer and RUN interval are both rated 4.7 out of 5 on the App Store, from 5.6K and 1K ratings respectively.

### Do Half Marathon 13.1 Trainer or RUN interval have ads?

Half Marathon 13.1 Trainer shows ads; RUN interval does not.

### Which is updated more often, Half Marathon 13.1 Trainer or RUN interval?

Half Marathon 13.1 Trainer ships an update every 6 weeks, and RUN interval every 3 months. Most recently, Half Marathon 13.1 Trainer was updated on October 2, 2026 and RUN interval on October 1, 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.*