# Your 531 Strength Trainer vs BBB Tracker

The clearest difference is in-app purchases: BBB Tracker at none against Your 531 Strength Trainer's 3. Your 531 Strength Trainer's advantage is update cadence (every 10 days vs every 3 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Your 531 Strength Trainer sells 3 in-app purchases, starting at $2.99 per 7 days. BBB Tracker asks for nothing beyond the download.

Your 531 Strength Trainer ships an update every 10 days, BBB Tracker every 3 months. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Your 531 Strength Trainer | BBB Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 months |
| Size | 64 MB | 1 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [George Gomez](https://appshunter.io/developer/1639130888) | [John Wiseman](https://appshunter.io/developer/1702375946) |

## What reviewers say

### Your 531 Strength Trainer

[App page](https://appshunter.io/ios/app/your-531-strength-trainer/id6748484103)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $49.99 | per year |


### BBB Tracker

[App page](https://appshunter.io/ios/app/bbb-tracker/id6770320348)

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

**In-app purchases:** none


## Frequently asked questions

### Is Your 531 Strength Trainer free?

Your 531 Strength Trainer is free to download, with in-app purchases available.

### Is BBB Tracker free?

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

### Do Your 531 Strength Trainer or BBB Tracker have ads?

Neither Your 531 Strength Trainer nor BBB Tracker shows ads.

### Which is updated more often, Your 531 Strength Trainer or BBB Tracker?

Your 531 Strength Trainer ships an update every 10 days, and BBB Tracker every 3 months. Most recently, Your 531 Strength Trainer was updated on October 1, 2026 and BBB Tracker on October 5, 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.*