SmartCuffs vs Crown Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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).
Crown Tracker
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Crown Tracker helps you take consistent hair photos over time and compare them privately. Guided check-ins, angle reminders, haircut context, and fair comparison tools make it easier to see your visual history without turning it into a diagnosis. Photos stay on your iPhone by default, with optional iCloud sync when you choose it. Crown Tracker is for personal tracking only. It does not diagnose hair loss, measure severity, recommend treatments, or replace medical advice.
Screenshots
Verdict
The clearest difference is in-app purchases: SmartCuffs at none against Crown Tracker's 1. SmartCuffs also leads on device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price, update cadence and ads 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. Crown Tracker sells 1 one-off in-app purchase. SmartCuffs asks for nothing beyond the download.
SmartCuffs ships an update monthly, Crown Tracker every 3 weeks. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.
| Parameter | SmartCuffs | Crown Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (37 ratings) — better | — |
| Positive reviews | 20.8% of reviews | — |
| Number of ratings | 37 — better | — |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 37 MB | 9 MB |
| Age rating | 12+ | 4+ |
| Developer | Smart Tools Plus, LLC | Solve IT Simply |
In-app purchases
SmartCuffs
No in-app purchases
Crown Tracker
- Crown Tracker Supporter$2.99
