# Relentless Trainer vs ENDUROX

The clearest difference is in-app purchases: ENDUROX at none against Relentless Trainer's 9. ENDUROX also leads on iOS requirement (13.0 vs 16.6). Relentless Trainer's advantage is update cadence (every 5 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Relentless Trainer sells 9 in-app purchases, starting at $9.99 per month. ENDUROX asks for nothing beyond the download.

Relentless Trainer ships an update every 5 days, ENDUROX monthly. The most recent releases landed on September 25, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Relentless Trainer | ENDUROX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (15 ratings)](https://appshunter.io/ios/app/relentless-trainer/id1630725830/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 218 MB | 57 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Relentless Method AB](https://appshunter.io/developer/1091241290) | [Tilt Software Limited](https://appshunter.io/developer/898473961) |

## What reviewers say

### Relentless Trainer

[App page](https://appshunter.io/ios/app/relentless-trainer/id1630725830)

This AI-powered coach creates daily personalized workouts for various fitness disciplines, adapting to your current state and history. It offers nutrition plans, extensive exercise libraries with videos, and flexible training options. Track progress and integrate with health apps and smart devices for a comprehensive fitness experience.

**Highlights:** AI-powered personalized workouts, Nutrition program, 1200+ exercises with videos, Flexible training options, Integration with health apps, Specialized training tracks

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dash Monthly Subscription | $9.99 | per month |
| Core Monthly Subscription | $17.99 | per month |
| Monthly | $23.99 | per month |
| Dash Quarterly Subscription | $23.99 | per 3 months |
| Core Quarterly Subscription | $44.99 | per 3 months |
| Quarterly | $59.99 | per 3 months |
| Dash Yearly Subscription | $79.99 | per year |
| Core Yearly Subscription | $149.99 | per year |
| Yearly | $195.99 | per year |


### ENDUROX

[App page](https://appshunter.io/ios/app/endurox/id6744281426)

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

**In-app purchases:** none


## Frequently asked questions

### Is Relentless Trainer free?

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

### Is ENDUROX free?

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

### Do Relentless Trainer or ENDUROX have ads?

Neither Relentless Trainer nor ENDUROX shows ads.

### Which is updated more often, Relentless Trainer or ENDUROX?

Relentless Trainer ships an update every 5 days, and ENDUROX monthly. Most recently, Relentless Trainer was updated on September 25, 2026 and ENDUROX on September 12, 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.*