# HCSiSD vs ISD Link

The clearest difference is price: ISD Link at Free against HCSiSD's $0.99. ISD Link also leads on device support (4 vs 2). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

ISD Link is free to download; HCSiSD costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HCSiSD ships an update every 5 weeks, ISD Link every 3 weeks. The most recent releases landed on May 17, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | HCSiSD | ISD Link |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[2.1 (23 ratings)](https://appshunter.io/ios/app/isd-link/id1568620244/reviews)** |
| Number of ratings | — | **23** |
| Positive reviews | — | 21.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 11 MB | 61 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [lagommette](https://appshunter.io/developer/467184538) | [深圳艾斯特创新科技有限公司](https://appshunter.io/developer/1405370693) |

## What reviewers say

### HCSiSD

[App page](https://appshunter.io/ios/app/hcsisd/id1106087229)

**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 HCSiSD free?

HCSiSD costs $0.99, with no in-app purchases.

### Is ISD Link free?

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

### Do HCSiSD or ISD Link have ads?

Neither HCSiSD nor ISD Link shows ads.

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

HCSiSD ships an update every 5 weeks, and ISD Link every 3 weeks. Most recently, HCSiSD was updated on May 17, 2026 and ISD Link on September 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.*