---
title: "PrO2+ - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "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 measuremen"
---

# PrO2+ — United States

![PrO2+ App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/3b/6b/6e/3b6b6e79-eda8-e3a1-7df4-663e59bb5bf3/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Unknown](https://apptail.io/developer/unknown-xZzc)
**Category:** Health Fitness
**Rating:** 5.0/5 (1 ratings)
**Price:** Free
**Bundle ID:** com.pro2fit.app2
**Store:** Apple App Store
**Country:** United States
**Version:** 4.45 (released 2026-09-18)
**Original Release:** 2026-04-22
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6757462419)
**AppTail Page:** [https://apptail.io/app/pro2-XwfA/united-states](https://apptail.io/app/pro2-XwfA/united-states)

## PrO2+ Description
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.

## PrO2+ Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/5c/9c/fe/5c9cfeed-41ab-cf55-6215-255597bf634f/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-02-19_at_22.56.29.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f2/79/42/f279423b-9d98-ed53-78bf-bd2fe18ec9cc/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-02-19_at_22.57.04.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/46/e0/6d/46e06d61-617f-b65f-04b1-1941ce0b5fba/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-02-19_at_23.20.58.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ad/ae/90/adae902c-6a57-ed21-202d-0fa408099e4d/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-02-19_at_23.21.42.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/8f/78/53/8f7853f6-3da6-0b77-92bd-3e7bfb66131a/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-02-19_at_23.24.10.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/64/bc/80/64bc80bb-4a46-5cc2-6f5d-1677aa246e53/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-02-19_at_23.25.08.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/35/51/2f/35512f16-ac47-0a7b-b407-ba4f6bb54bba/Simulator_Screenshot_-_iPhone_13_Pro_Max_-_2026-02-19_at_23.26.10.png/1284x2778.png)

## PrO2+ Rating Breakdown in United States
- 5 stars: 1 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)






## PrO2+ Available In
- [United States](https://apptail.io/app/pro2-XwfA/united-states)
- [China](https://apptail.io/app/pro2-XwfA/china)
- [Italy](https://apptail.io/app/pro2-XwfA/italy)
- [Russia](https://apptail.io/app/pro2-XwfA/russia)

---

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