# SmartCuffs vs Crown Tracker

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.

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.

## The numbers

| Metric | SmartCuffs | Crown Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (37 ratings)](https://appshunter.io/ios/app/smartcuffs/id1632227731/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 20.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 37 MB | 9 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Smart Tools Plus, LLC](https://appshunter.io/developer/1520284709) | [Solve IT Simply](https://appshunter.io/developer/1880558089) |

## What reviewers say

### SmartCuffs

[App page](https://appshunter.io/ios/app/smartcuffs/id1632227731)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Crown Tracker

[App page](https://appshunter.io/ios/app/crown-tracker/id6786839901)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Crown Tracker Supporter | $2.99 | one-time |


## Frequently asked questions

### Is SmartCuffs free?

SmartCuffs is free to download, with no in-app purchases.

### Is Crown Tracker free?

Crown Tracker is free to download, with in-app purchases available.

### Do SmartCuffs or Crown Tracker have ads?

Neither SmartCuffs nor Crown Tracker shows ads.

### Which is updated more often, SmartCuffs or Crown Tracker?

SmartCuffs ships an update monthly, and Crown Tracker every 3 weeks. Most recently, SmartCuffs was updated on November 3, 2026 and Crown Tracker on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*