# Base Strength AI vs Relentless Running

The clearest difference is device support: Base Strength AI at 3 against Relentless Running's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Base Strength AI sells 3 in-app purchases, starting at $24.99 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.

Base Strength AI ships an update every 9 days, Relentless Running fortnightly. The most recent releases landed on November 4, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Base Strength AI | Relentless Running |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (153 ratings)](https://appshunter.io/ios/app/base-strength-ai/id6472990583/reviews)** | — |
| Number of ratings | **153** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Subscription | — |
| Size | 171 MB | 223 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Skynet Coaching Inc.](https://appshunter.io/developer/1438108470) | [Relentless Method AB](https://appshunter.io/developer/1091241290) |

## What reviewers say

### Base Strength AI

[App page](https://appshunter.io/ios/app/base-strength-ai/id6472990583)

This AI-powered fitness app delivers personalized strength training programs based on an expert's coaching methods. It adapts in real-time to your progress, offering an effective and affordable way to achieve your strength and size goals.

**Highlights:** AI-powered personalized training plans, Real-time program adjustments, Expert coaching style integration, Strength and size goal achievement, Affordable fitness experience

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BASE Strength | $24.99 | per month |
| Base Strength App | $64.99 | per 3 months |
| Base Strength App | $229.99 | per year |


### 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 Base Strength AI free?

Base Strength AI 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 Base Strength AI or Relentless Running have ads?

Neither Base Strength AI nor Relentless Running shows ads.

### Which is updated more often, Base Strength AI or Relentless Running?

Base Strength AI ships an update every 9 days, and Relentless Running fortnightly. Most recently, Base Strength AI was updated on November 4, 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.*