# IronOS Strength vs PR Foundry

The clearest difference is update cadence: IronOS Strength at every 4 days against PR Foundry's fortnightly. IronOS Strength also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IronOS Strength ships an update every 4 days, PR Foundry fortnightly. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | IronOS Strength | PR Foundry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/ironos-strength/id6763789414/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | Free | — |
| Size | 49 MB | 15 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Data Driven Athlete LLC](https://appshunter.io/developer/1895417340) | [Draxis Inc](https://appshunter.io/developer/6773371380) |

## What reviewers say

### IronOS Strength

[App page](https://appshunter.io/ios/app/ironos-strength/id6763789414)

Log workouts with precision, track progress, and measure strength over time. Features include automatic PR tracking, coach integration, and a unique durability score based on powerlifting standards. Syncs bodyweight with Apple Health.

**Highlights:** Workout logging with precision, Strength progress tracking, Durability Score metric, Automatic PR tracking, Coach integration, Form check video uploads, Apple Health sync

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

**In-app purchases:** none


### PR Foundry

[App page](https://appshunter.io/ios/app/pr-foundry/id6773371378)

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

**In-app purchases:** none


## Frequently asked questions

### Is IronOS Strength free?

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

### Is PR Foundry free?

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

### Do IronOS Strength or PR Foundry have ads?

Neither IronOS Strength nor PR Foundry shows ads.

### Which is updated more often, IronOS Strength or PR Foundry?

IronOS Strength ships an update every 4 days, and PR Foundry fortnightly. Most recently, IronOS Strength was updated on October 7, 2026 and PR Foundry on October 10, 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.*