# Base Strength AI vs RPE 8 (slowdown tracker)

The clearest difference is in-app purchases: RPE 8 (slowdown tracker) at none against Base Strength AI's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Base Strength AI sells 3 in-app purchases, starting at $24.99 per month. RPE 8 (slowdown tracker) asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 9 days. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Base Strength AI | RPE 8 (slowdown tracker) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (146 ratings)](https://appshunter.io/ios/app/base-strength-ai/id6472990583/reviews)** | — |
| Number of ratings | **146** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | Every 9 days |
| Monetization | Subscription | — |
| Size | 171 MB | 1 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Skynet Coaching Inc.](https://appshunter.io/developer/1438108470) | [德凯 郝](https://appshunter.io/developer/6791808408) |

## 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 |


### RPE 8 (slowdown tracker)

[App page](https://appshunter.io/ios/app/rpe-8-slowdown-tracker/id6793735413)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Base Strength AI free?

Base Strength AI is free to download, with in-app purchases available.

### Is RPE 8 (slowdown tracker) free?

RPE 8 (slowdown tracker) is free to download, with no in-app purchases.

### Do Base Strength AI or RPE 8 (slowdown tracker) have ads?

Neither Base Strength AI nor RPE 8 (slowdown tracker) shows ads.

### Which is updated more often, Base Strength AI or RPE 8 (slowdown tracker)?

Base Strength AI ships an update every 9 days, and RPE 8 (slowdown tracker) every 9 days. Most recently, Base Strength AI was updated on October 15, 2026 and RPE 8 (slowdown tracker) on October 17, 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.*