# FOÜ Center vs PrO2+

The clearest difference is iOS requirement: FOÜ Center at 12.0 against PrO2+'s 17.0. On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for FOÜ Center against 5.0 for PrO2+. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | FOÜ Center | PrO2+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/fou-center/id6752970675/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/pro2-plus/id6757462419/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 96 MB | 6 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Treshna Enterprises](https://appshunter.io/developer/959435261) | [PrO2HEALTH](https://appshunter.io/developer/909203686) |

## What reviewers say

### FOÜ Center

[App page](https://appshunter.io/ios/app/fou-center/id6752970675)

Easily plan and book fitness classes and sessions around your schedule. Manage your memberships, update your profile, and track workout progress. Receive important notifications from your gym directly within the app.

**Highlights:** View class timetable in real time, Book classes and sessions, Manage bookings and make changes, Update profile information, Receive gym notifications, Track workout progress

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### PrO2+

[App page](https://appshunter.io/ios/app/pro2-plus/id6757462419)

This app connects to respiratory muscle trainer devices to measure and improve breathing strength. It's designed for individuals looking to enhance respiratory performance through guided training sessions. Consult a physician if you have respiratory health conditions before use.

**Highlights:** Respiratory muscle training, Breathing strength assessment, Resisted breathing measurements, Performance improvement tracking, Device connectivity

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

**In-app purchases:** none


## Frequently asked questions

### Is FOÜ Center free?

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

### Is PrO2+ free?

PrO2+ is free to download, with no in-app purchases.

### Which has better reviews, FOÜ Center or PrO2+?

FOÜ Center and PrO2+ are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do FOÜ Center or PrO2+ have ads?

Neither FOÜ Center nor PrO2+ shows ads.

### Which is updated more often, FOÜ Center or PrO2+?

FOÜ Center ships an update every 3 weeks, and PrO2+ every 3 weeks. Most recently, FOÜ Center was updated on October 4, 2026 and PrO2+ on October 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.*