# SkyRC vs Castle Link

The clearest difference is rating: SkyRC at 2.4 against Castle Link's 1.8. SkyRC also leads on review sentiment (31% vs 18%). Castle Link's advantage is ratings volume (32 vs 10). 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.

SkyRC holds the better App Store score, 2.4 against 1.8. Both are backed by a comparable volume of ratings — 10 and 32 respectively. Written reviews point the same way: 31% of SkyRC's written reviews are positive against 18% of Castle Link's.

SkyRC ships an update every 3 weeks, Castle Link monthly. The most recent releases landed on September 22, 2026 and June 13, 2026 respectively.

## The numbers

| Metric | SkyRC | Castle Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (10 ratings)](https://appshunter.io/ios/app/skyrc/id1107478343/reviews)** | [1.8 (32 ratings)](https://appshunter.io/ios/app/castle-link/id1215086336/reviews) |
| Number of ratings | 10 | **32** |
| Positive reviews | **30.8% of reviews** | 18.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 53 MB | 39 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SkyRC Technology Co.,Ltd.](https://appshunter.io/developer/580032028) | [Castle Creations, Inc.](https://appshunter.io/developer/1377811229) |

## What reviewers say

### SkyRC

[App page](https://appshunter.io/ios/app/skyrc/id1107478343)

Monitor and control your Multifunction Battery Charger in real-time. This app provides Bluetooth connectivity to display charging and discharging data for your Apple devices.

**Highlights:** Real-time charging/discharging data, Bluetooth communication, Monitor Apple devices (iPod, iPhone, iPad), Suitable for pilots and racers, Portable computing integration

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

**In-app purchases:** none


### Castle Link

[App page](https://appshunter.io/ios/app/castle-link/id1215086336)

Wirelessly program and update settings for compatible electronic speed controllers and BEC devices. Save and sync profiles across devices, and access data logs without an internet connection.

**Highlights:** Wireless programming via Bluetooth, Firmware updates, Save and load custom profiles, Sync settings across iOS devices, Offline functionality, Data log viewing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SkyRC free?

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

### Is Castle Link free?

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

### Which has better reviews, SkyRC or Castle Link?

SkyRC is rated higher. SkyRC averages 2.4 out of 5 from 10 ratings, while Castle Link averages 1.8 from 32 ratings.

### Do SkyRC or Castle Link have ads?

Neither SkyRC nor Castle Link shows ads.

### Which is updated more often, SkyRC or Castle Link?

SkyRC ships an update every 3 weeks, and Castle Link monthly. Most recently, SkyRC was updated on September 22, 2026 and Castle Link on June 13, 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.*