Castle Link

Name: Castle Link
Rating: 1.8 (32 reviews)
Author: Castle Creations Inc

By: Castle Creations Inc

Utilities

Features & Capabilities

The Castle Link™ app enables users to wirelessly program settings and update firmware on any current Castle Creations ESC, many older models and the BEC 2.0/BEC Pro using the waterproof Castle B•LINK Bluetooth® adapter. You can quickly alter parameters and fine-tune adjustments anytime, anywhere.

Save profiles to allow for quick changes between settings
Sync information between multiple iOS devices
No data/internet connection required
The Castle Link app can be used with multiple B•LINK adapters or can store vehicle information and allow users to use one adapter on multiple vehicles
Each B•LINK is protected with a 4-digit passcode to prevent tampering with your settings

 Download and View Data Logs from compatible controllers

Requirements: - Castle B•LINK Bluetooth adapter (011-0135-00)

User Growth & Download Statistics

App

By:

Castle Creations Inc

Rating:

1.80

(32)

Version:

3.0.3 Last updated: 2024-09-18

Version code:

868792851

Creation date:

2018-05-01

Compatible devices:

Size:

38.87MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-05

Compare stats and ranking:

Ranking

# 343,867 ▼ 1,642

For Developers

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Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Castle Creations Inc

Apple Apps Store

https://apps.apple.com/us/app/castle-link/id1215086336

User Reviews

User reviews show Castle Link iOS as convenient for Bluetooth tuning and profile management, with data logging when accessible. However, reliability is a major problem: crashes, freezes, and dropouts; some updates brick ESCs. Throttle curve tuning on iPhone is not functional, and data logs aren’t readable on mobile, often requiring a PC. Compatibility issues with certain ESC models (e.g., Copperhead 10) worsen the frustration. Overall, the app offers on-the-go tuning benefits but is hampered by stability, feature gaps, and hardware compatibility concerns.

Pros

Bluetooth-based quick tuning without a PC.
Data logging feature with downloadable logs when available.
Profile save and quick switching for different vehicle setups.
Portable, convenient tuning on the go via Bluetooth.

Cons

Frequent stability issues: crashes, freezes, and lockups.
Updates via Castle B-Link can brick ESCs (and Copperhead 10 may not be recognized).
Throttle curve tuning on iPhone is nonfunctional or unreliable.
Data logs are not readable on mobile; need a PC to access logs.
Compatibility issues with certain ESC models and general recognition problems.

Recent reviews

It barely functions and is very difficult to use. This application has convinced me to try and avoid Castle products. So utterly frustrating to use when you just want to make a few simple changes

by Bl*****, 2025-05-08

This app is junk just like the b link. App crashes and freezes and will brick your esc. Research it and see for yourself. Don’t waste your money on the garbage.

by rl*****, 2025-05-03

The app stinks. Locks up or crashes. Has problems making or retaining blue tooth connections for any length of time. Failed me again… I gave up on all Castle Creations products….