# Empower PTAI vs Back

The clearest difference is update cadence: Back at daily against Empower PTAI's every 4 months. Empower PTAI's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

Empower PTAI ships an update every 4 months, Back daily. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Empower PTAI | Back |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Size | 44 MB | 178 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Empower Physical Therapy & Aquatics Institute, Inc](https://appshunter.io/developer/1861901712) | [TATJANA FEDORKOVA](https://appshunter.io/developer/6811918143) |

## What reviewers say

### Empower PTAI

[App page](https://appshunter.io/ios/app/empower-ptai/id6756625563)

**Features:** macOS Compatibility

**In-app purchases:** none


### Back

[App page](https://appshunter.io/ios/app/back-panic-attack-help/id6811918141)

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

**In-app purchases:** none


## Frequently asked questions

### Is Empower PTAI free?

Empower PTAI is free to download, with no in-app purchases.

### Is Back free?

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

### Do Empower PTAI or Back have ads?

Neither Empower PTAI nor Back shows ads.

### Which is updated more often, Empower PTAI or Back?

Empower PTAI ships an update every 4 months, and Back daily. Most recently, Empower PTAI was updated on October 30, 2026 and Back on November 6, 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.*