# Cornerstone PT vs Island Physical Therapy

The clearest difference is update cadence: Island Physical Therapy at every 2 months against Cornerstone PT's every 5 months. 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.

Cornerstone PT ships an update every 5 months, Island Physical Therapy every 2 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | Cornerstone PT | Island Physical Therapy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 42 MB | 44 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Cornerstone Physical Therapy, LLC](https://appshunter.io/developer/1827269576) | [Kokua Physical Therapy](https://appshunter.io/developer/1850776551) |

## What reviewers say

### Cornerstone PT

[App page](https://appshunter.io/ios/app/cornerstone-pt/id6748754954)

**Features:** macOS Compatibility

**In-app purchases:** none


### Island Physical Therapy

[App page](https://appshunter.io/ios/app/island-physical-therapy/id6754890935)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cornerstone PT free?

Cornerstone PT is free to download, with no in-app purchases.

### Is Island Physical Therapy free?

Island Physical Therapy is free to download, with no in-app purchases.

### Do Cornerstone PT or Island Physical Therapy have ads?

Neither Cornerstone PT nor Island Physical Therapy shows ads.

### Which is updated more often, Cornerstone PT or Island Physical Therapy?

Cornerstone PT ships an update every 5 months, and Island Physical Therapy every 2 months. Most recently, Cornerstone PT was updated on October 25, 2026 and Island Physical Therapy on October 25, 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.*