PrO2 Fit vs SmartCuffs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrO2 Fit
This app pairs with a respiratory muscle trainer to help users measure and improve their breathing strength and performance. It guides users through resisted breathing exercises to enhance respiratory function.
- Measure respiratory strength
- Improve breathing performance
- Resisted breathing exercises
- Companion device integration
- Track respiratory progress
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This is the companion app for the PrO2Fit Inspiratory Muscle Trainer (IMT). The PrO2Fit device is used to measure and increase respiratory strength and performance through resisted breathing exercises. Individuals who are not in good health or have a respiratory related medical condition should consult their physician before using PrO2.
SmartCuffs
This app pairs with specialized cuffs to enable Blood Flow Restriction (BFR) training. BFR uses low-intensity exercise with reduced arterial flow to achieve results similar to high-intensity training, allowing for muscle growth and strength gains with lighter loads.
- Connects to SmartCuffs 4.0 devices
- Enables Blood Flow Restriction (BFR) training
- Supports low-intensity exercise
- Utilizes TriPressure technology
- Offers continuous BFR
- Offers intermittent BFR
- Offers resting BFR
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The SmartCuffs app is designed to connect to your SmartCuffs 4.0 devices. Blood Flow Restriction (BFR) training is a technique in which combines low-intensity exercise under reduced arterial flow conditions. BFR is quantifiably and objectively reducing the amount of blood flow into an extremity by using a specially made medical tourniquet. BFR allows individuals to use low loads yet achieve results similar to high intensity training. The SmartCuffs 4.0 is the only wireless BFR cuff in the world that contains our TriPressure technology. This allows for 3 types of evidenced-based, research supported BFR (continuous, intermittent, and resting BFR).
Screenshots
Verdict
The clearest difference is rating: PrO2 Fit at 3.3 against SmartCuffs's 2.4. PrO2 Fit also leads on iOS requirement (12.0 vs 15.1). SmartCuffs's advantage is review sentiment (21% vs 0%) and ratings volume (36 vs 6). On price, update cadence, ads and in-app purchases 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.
PrO2 Fit holds the better App Store score, 3.3 against 2.4. That said, the two scores are not equally well evidenced: SmartCuffs has 36 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 0% of PrO2 Fit's written reviews are positive against 21% of SmartCuffs's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.
| Parameter | PrO2 Fit | SmartCuffs |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (6 ratings) — better | 2.4 (36 ratings) |
| Positive reviews | 0.0% of reviews | 20.8% of reviews — better |
| Number of ratings | 6 | 36 — better |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 25 MB | 37 MB |
| Age rating | 4+ | 12+ |
| Developer | PrO2HEALTH | Smart Tools Plus, LLC |
Customer experience
PrO2 Fit
SmartCuffs
In-app purchases
PrO2 Fit
No in-app purchases
SmartCuffs
No in-app purchases
