# Power Three vs Cornerstone Strength

The clearest difference is in-app purchases: Power Three at none against Cornerstone Strength's 2. Power Three also leads on iOS requirement (12.0 vs 15.1). Cornerstone Strength's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Cornerstone Strength sells 2 in-app purchases, starting at $7.99 per month. Power Three asks for nothing beyond the download.

## The numbers

| Metric | Power Three | Cornerstone Strength |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (10 ratings)](https://appshunter.io/ios/app/cornerstone-strength/id6760873427/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 4 weeks |
| Monetization | — | Subscription |
| Size | 69 MB | 58 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Landon Curtis](https://appshunter.io/developer/1605508900) | [K&G Apps](https://appshunter.io/developer/1886601431) |

## What reviewers say

### Power Three

[App page](https://appshunter.io/ios/app/power-three/id6449467555)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cornerstone Strength

[App page](https://appshunter.io/ios/app/cornerstone-strength/id6760873427)

This app helps users track workouts, build strength, and gain muscle with custom programs and advanced analytics. It offers detailed logging for exercises, progress tracking, and a large exercise library.

**Highlights:** Custom workout program creation, Advanced training algorithm, Detailed workout logging (weight, reps, RPE, RIR), Progress charts and analytics, Extensive exercise library, Personal record detection, Workout sharing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $7.99 | per month |
| Yearly Subscription | $49.99 | per year |


## Frequently asked questions

### Is Power Three free?

Power Three is free to download, with no in-app purchases.

### Is Cornerstone Strength free?

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

### Do Power Three or Cornerstone Strength have ads?

Power Three shows ads; Cornerstone Strength does not.

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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.*