# Castle Link vs INJORA Link

The clearest difference is rating: INJORA Link at 2.7 against Castle Link's 1.8. Castle Link's advantage is review sentiment (18% vs 0%) and ratings volume (32 vs 3). 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.

INJORA Link holds the better App Store score, 2.7 against 1.8. That said, the two scores are not equally well evidenced: Castle Link has 32 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 18% of Castle Link's written reviews are positive against 0% of INJORA Link's, so the app with the better star average is not the one people write more warmly about.

Castle Link ships an update monthly, INJORA Link every 5 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Castle Link | INJORA Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (32 ratings)](https://appshunter.io/ios/app/castle-link/id1215086336/reviews) | **[2.7 (3 ratings)](https://appshunter.io/ios/app/injora-link/id6503290390/reviews)** |
| Number of ratings | **32** | 3 |
| Positive reviews | **18.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 39 MB | 19 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Castle Creations Inc](https://appshunter.io/developer/1377811229) | [奇勇 颜](https://appshunter.io/developer/1278807009) |

## What reviewers say

### 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

**What reviewers like**

- 👍 Easy to program ESC
- 👍 Data logging is fantastic
- 👍 Save profile feature is useful
- 👍 Convenient for quick setting changes

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 App freezes often
- 🐛 Bluetooth connection issues
- 🐛 Bricks ESCs
- 🐛 Throttle curve not working

**Reported bugs**

- App crashes on passcode entry
- App freezes
- Bluetooth connection problems
- Bricking ESCs
- Throttle curve not working

**Requested features**

- Add data logging to iOS app
- Allow viewing data logs on phone
- Fix throttle curve interface
- Add Android application
- Make motor test selectable


### INJORA Link

[App page](https://appshunter.io/ios/app/injora-link/id6503290390)

This application allows RC vehicle enthusiasts to precisely adjust ESC settings like throttle, braking, and motor timing. It offers a user-friendly interface and real-time Bluetooth connectivity for optimal vehicle performance.

**Highlights:** Adjust throttle parameters, Adjust braking parameters, Adjust motor timing, User-friendly interface, Real-time Bluetooth connectivity, Fine-tune ESC settings

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

**In-app purchases:** none


## Frequently asked questions

### Is Castle Link free?

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

### Is INJORA Link free?

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

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

INJORA Link is rated higher. Castle Link averages 1.8 out of 5 from 32 ratings, while INJORA Link averages 2.7 from 3 ratings.

### Do Castle Link or INJORA Link have ads?

Neither Castle Link nor INJORA Link shows ads.

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

Castle Link ships an update monthly, and INJORA Link every 5 weeks. Most recently, Castle Link was updated on October 24, 2026 and INJORA Link on October 24, 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.*