FOÜ Center vs PrO2+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FOÜ Center
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.
- View class timetable in real time
- Book classes and sessions
- Manage bookings and make changes
- Update profile information
- Receive gym notifications
- Track workout progress
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Now it's easier than ever to plan your sessions alongside your schedule. Book classes & sessions on the go, keep your profile up to date and manage your memberships all within the app. View Class Timetable: Easily view your gym's full timetable in real time. You can see who's running the class, whether the class is full and quickly secure your spot with the push of a button. Manage Your Bookings: Schedule a session or book into a Class. You can check in on future bookings and make any changes as needed. Update your Profile: Keep your contact information up to date and choose your own profile photo. Notifications: Receive push notifications from your gym to alert you of upcoming bookings and other club events. View a full history of these communications in app so you never forget an important message. Workout & Measurements: View your workout regime and conveniently track the progression towards your body goals.
PrO2+
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.
- Respiratory muscle training
- Breathing strength assessment
- Resisted breathing measurements
- Performance improvement tracking
- Device connectivity
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This is the companion app for the PrO2 Respiratory Muscle Trainer products. The PrO2 devices are used to assess and improve respiratory strength and performance through resisted breathing measurements and training. Individuals who are not in good health or have any respiratory related medical condition should consult their physician before using PrO2. This PrO2 device and apps are classified as Class II medical devices that are exempt from premarket notification requirements under regulations of the U.S. Food and Drug Administration (FDA). The manufacturer is registered with the FDA and the device is listed in accordance with applicable U.S. regulatory requirements. For regions outside the US, refer to local guidance for the use of the PrO2 device for medical purposes. The PrO2 devices are FCC approved (2AX05-PRO2FIT) and CE registered.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | FOÜ Center | PrO2+ |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 96 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Treshna Enterprises | PrO2HEALTH |
Customer experience
FOÜ Center
PrO2+
In-app purchases
FOÜ Center
No in-app purchases
PrO2+
No in-app purchases









