# Free Link vs ISD Link

The clearest difference is rating: ISD Link at 2.1 against Free Link's 1.3. ISD Link also leads on review sentiment (21% vs 0%) and ratings volume (23 vs 3). Free Link's advantage is iOS requirement (10.0 vs 13.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ISD Link holds the better App Store score, 2.1 against 1.3. That said, the two scores are not equally well evidenced: ISD Link has 23 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Free Link's written reviews are positive against 21% of ISD Link's.

Free Link ships an update every 5 weeks, ISD Link every 3 weeks. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Free Link | ISD Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.3 (3 ratings)](https://appshunter.io/ios/app/free-link/id1208371375/reviews) | **[2.1 (23 ratings)](https://appshunter.io/ios/app/isd-link/id1568620244/reviews)** |
| Number of ratings | 3 | **23** |
| Positive reviews | 0.0% of reviews | **21.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 50 MB | 61 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [FrSky Electronic Co ., Ltd.](https://appshunter.io/developer/1208371374) | [深圳艾斯特创新科技有限公司](https://appshunter.io/developer/1405370693) |

## What reviewers say

### Free Link

[App page](https://appshunter.io/ios/app/free-link/id1208371375)

This utility tool is designed for users of Wuxi Frsky Electronic Co., Ltd. products. It provides essential functionality for managing and interacting with compatible devices. The application is free to download and use.

**Highlights:** Device management, Tool software, Compatible with Wuxi Frsky products, Free to use

**Features:** macOS Compatibility

**In-app purchases:** none


### ISD Link

[App page](https://appshunter.io/ios/app/isd-link/id1568620244)

This app allows interaction with various smart devices. It prioritizes user privacy by saving all data locally and not collecting personal information. Bluetooth is required for device scanning and connection.

**Highlights:** Smart device interaction, Local data saving, No account registration, Bluetooth connectivity, Supports numerous device models

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Free Link free?

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

### Is ISD Link free?

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

### Which has better reviews, Free Link or ISD Link?

ISD Link is rated higher. Free Link averages 1.3 out of 5 from 3 ratings, while ISD Link averages 2.1 from 23 ratings.

### Do Free Link or ISD Link have ads?

Neither Free Link nor ISD Link shows ads.

### Which is updated more often, Free Link or ISD Link?

Free Link ships an update every 5 weeks, and ISD Link every 3 weeks. Most recently, Free Link was updated on September 30, 2026 and ISD Link on October 12, 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.*