# Half Marathon 13.1 Trainer vs Firebird Pilates

The clearest difference is in-app purchases: Firebird Pilates at none against Half Marathon 13.1 Trainer's 5. Firebird Pilates also leads on ads (none vs shown). Half Marathon 13.1 Trainer's advantage is device support (4 vs 2). On price, update cadence and iOS requirement 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. Firebird Pilates asks for nothing beyond the download.

Half Marathon 13.1 Trainer ships an update every 6 weeks, Firebird Pilates every 2 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Half Marathon 13.1 Trainer | Firebird Pilates |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (5.6K ratings)](https://appshunter.io/ios/app/half-marathon-131-trainer/id514647091/reviews)** | — |
| Number of ratings | **5.6K** | — |
| Positive reviews | 55.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 319 MB | 15 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zen Labs](https://appshunter.io/developer/485971738) | [Trainin](https://appshunter.io/developer/1732652497) |

## 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


### Firebird Pilates

[App page](https://appshunter.io/ios/app/firebird-pilates/id6768973989)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## 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 Firebird Pilates free?

Firebird Pilates is free to download, with no in-app purchases.

### Do Half Marathon 13.1 Trainer or Firebird Pilates have ads?

Half Marathon 13.1 Trainer shows ads; Firebird Pilates does not.

### Which is updated more often, Half Marathon 13.1 Trainer or Firebird Pilates?

Half Marathon 13.1 Trainer ships an update every 6 weeks, and Firebird Pilates every 2 months. Most recently, Half Marathon 13.1 Trainer was updated on November 3, 2026 and Firebird Pilates on October 25, 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.*