# Relentless Trainer vs Palaestra OS

The clearest difference is in-app purchases: Palaestra OS at none against Relentless Trainer's 9. Relentless Trainer's advantage is update cadence (every 3 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

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

Relentless Trainer ships an update every 3 days, Palaestra OS monthly. The most recent releases landed on October 30, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Relentless Trainer | Palaestra OS |
| --- | --- | --- |
| 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 3 days** | Monthly |
| Monetization | Subscription | — |
| Size | 227 MB | 35 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Relentless Method AB](https://appshunter.io/developer/1091241290) | [David Sardinha Alves](https://appshunter.io/developer/6775845429) |

## What reviewers say

### Relentless Trainer

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

This AI-powered coach offers personalized daily workouts for a wide range of fitness disciplines, adapting to your current state and goals. It includes nutrition plans, exercise demonstrations, and integrates with health apps and smart devices.

**Highlights:** AI-powered personalized workouts, Nutrition program for weight loss/muscle gain, Over 1200 exercises with videos, Flexible training time and equipment, Specialized training tracks, Health app and smart device integration

**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 |


### Palaestra OS

[App page](https://appshunter.io/ios/app/palaestra-os/id6775845427)

**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 Palaestra OS free?

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

### Do Relentless Trainer or Palaestra OS have ads?

Neither Relentless Trainer nor Palaestra OS shows ads.

### Which is updated more often, Relentless Trainer or Palaestra OS?

Relentless Trainer ships an update every 3 days, and Palaestra OS monthly. Most recently, Relentless Trainer was updated on October 30, 2026 and Palaestra OS 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.*