HealthAligner vs PrO2+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HealthAligner
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Welcome to the HealthAligner App! HealthAligner App is an engaging educational guide about neurological, skeletal and muscular disorders in an easy to understand format. Health is expressed when we are properly aligned in our structure, movement, nutrition and thoughts. This integrated approach ensures that the body is aligned both internally and externally. Using interactive animations, presentations and a user-friendly interface, the HealthAligner App by Visual Odyssey will demonstrate why dysfunctions in the body might exist and what natural tools are available to help. This app also contains a Directory of Providers who wish you to learn more about how to regain and maintain your health. Contact them to learn how to unlock even more valuable information about you and how to feel better.
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 update cadence: PrO2+ at every 3 weeks against HealthAligner's every 43 months. HealthAligner's advantage is iOS requirement (11.0 vs 17.0). On price, ads, in-app purchases and device support 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.
HealthAligner ships an update every 43 months, PrO2+ every 3 weeks. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.
| Parameter | HealthAligner | PrO2+ |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 43 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 6 MB |
| Age rating | 12+ | 4+ |
| Developer | Visual Odyssey Apps | PrO2HEALTH |
In-app purchases
HealthAligner
No in-app purchases
PrO2+
No in-app purchases








