# BT Link vs Defyx

BT Link and Defyx both sit at 4.3 stars, but that hides the real split: 81% of Defyx's written reviews are positive against 0% of BT Link's. Defyx also leads on ratings volume (54 vs 15). BT Link's advantage is in-app purchases (none vs 5) and ads (none vs shown). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Defyx sells 5 one-off in-app purchases. BT Link asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.3 for BT Link against 4.4 for Defyx. Both are backed by a comparable volume of ratings — 15 and 54 respectively. Written reviews are what separate them: 0% of BT Link's written reviews are positive against 81% of Defyx's.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BT Link | Defyx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (15 ratings)](https://appshunter.io/ios/app/bt-link/id1231702720/reviews) | **[4.4 (54 ratings)](https://appshunter.io/ios/app/defyx/id6746811872/reviews)** |
| Number of ratings | 15 | **54** |
| Positive reviews | 0.0% of reviews | **81.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 175 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [德宇 周](https://appshunter.io/developer/1098728022) | [UnboundTech UG (haftungsbeschraenkt)](https://appshunter.io/developer/1804424748) |

## What reviewers say

### BT Link

[App page](https://appshunter.io/ios/app/bt-link/id1231702720)

Control your LED light and Bluetooth speaker from your phone. Adjust music playback, lighting effects, equalizer settings, and input sources like USB, SD card, FM radio, and line-in.

**Highlights:** Music Playback Control, LED Light Customization, Equalizer Settings, USB/SD Card Playback, FM Radio Control, Line-In Input Management

**Features:** macOS Compatibility

**In-app purchases:** none


### Defyx

[App page](https://appshunter.io/ios/app/defyx/id6746811872)

This app provides secure and fast internet access with a focus on user privacy. It offers automatic setup, unlimited bandwidth, and end-to-end encryption to protect your data. The interface is clean and designed for ease of use, with features like Cloudflare DNS filtering for enhanced security.

**Highlights:** Secure, high-speed connections, Automatic smart onboarding, Unlimited bandwidth, no throttling, Automatic best server selection, End-to-end data encryption, Strict no-logs policy, Cloudflare DNS filtering

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Defyx Balance – 1 Credit | $0.99 | one-time |
| Defyx Balance – 2 Credits | $1.99 | one-time |
| Defyx Balance – 3 Credits | $2.99 | one-time |
| Defyx Balance – 5 Credits | $3.99 | one-time |
| Defyx Balance – 10 Credits | $8.99 | one-time |


## Frequently asked questions

### Is BT Link free?

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

### Is Defyx free?

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

### Which has better reviews, BT Link or Defyx?

Defyx is rated higher. BT Link averages 4.3 out of 5 from 15 ratings, while Defyx averages 4.4 from 54 ratings.

### Do BT Link or Defyx have ads?

Defyx shows ads; BT Link does not.

### Which is updated more often, BT Link or Defyx?

BT Link ships an update every 2 weeks, and Defyx every 2 weeks. Most recently, BT Link was updated on October 24, 2026 and Defyx on October 25, 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.*