# Dynamic Triathlete vs Relentless Running

The clearest difference is update cadence: Relentless Running at fortnightly against Dynamic Triathlete's every 4 months. Dynamic Triathlete's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Dynamic Triathlete sells 2 in-app purchases, starting at $9.99 per month and Relentless Running sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

Dynamic Triathlete ships an update every 4 months, Relentless Running fortnightly. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Dynamic Triathlete | Relentless Running |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (56 ratings)](https://appshunter.io/ios/app/dynamic-triathlete/id6449952738/reviews)** | — |
| Number of ratings | **56** | — |
| Positive reviews | 87.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Subscription | — |
| Size | 95 MB | 223 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Flexible Marketing Media Inc](https://appshunter.io/developer/1615447023) | [Relentless Method AB](https://appshunter.io/developer/1091241290) |

## What reviewers say

### Dynamic Triathlete

[App page](https://appshunter.io/ios/app/dynamic-triathlete/id6449952738)

Enhance your triathlon performance with daily stretching, mobility, and strength training routines. Prevent injuries, improve flexibility, and accelerate recovery with comprehensive video programs. Access content across all your devices for seamless training.

**Highlights:** Daily stretching and mobility routines, Strength training programs (minimal equipment), Injury prevention and rehabilitation programs, Warmups and drills for all disciplines, Guided roll and release techniques, New content added regularly

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dynamic Triathlete | $9.99 | per month |
| Dynamic Triathlete | $84.99 | per year |

**What reviewers like**

- 💪 Keeps body flexible and strong
- 🧘‍♀️ Effective strength and mobility programs
- 🏃‍♂️ Excellent for triathletes
- 🩹 Aids in injury prevention and recovery
- 👍 Simple, effective, and straight to the point

**What reviewers complain about**

- 🐛 Some prehab sessions not showing in overview
- 🐌 App performance is poor, slow loading
- 🎶 Cannot turn off background music
- ❓ Difficulty finding specific exercises for pain points
- 📉 App is unstable, crashes, loses progress

**Reported bugs**

- Some prehab sessions don’t show up in overview
- App performance is very poor, slow loading
- App is unstable, crashes
- Lost saved programming and progress
- App sticks and doesn’t always bring up where you left off

**Requested features**

- Option to turn off background music
- Easier way to tell the app where it hurts and get suggestions
- More easily track progress
- Option to change language


### Relentless Running

[App page](https://appshunter.io/ios/app/relentless-running/id6804181621)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Relentless Running Monthly | $14.99 | per month |
| Relentless Running Annual | $99.99 | per year |


## Frequently asked questions

### Is Dynamic Triathlete free?

Dynamic Triathlete is free to download, with in-app purchases available.

### Is Relentless Running free?

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

### Do Dynamic Triathlete or Relentless Running have ads?

Neither Dynamic Triathlete nor Relentless Running shows ads.

### Which is updated more often, Dynamic Triathlete or Relentless Running?

Dynamic Triathlete ships an update every 4 months, and Relentless Running fortnightly. Most recently, Dynamic Triathlete was updated on November 3, 2026 and Relentless Running on October 29, 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.*