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

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

What’s New

Version 1.03

Fixed issues with Cutoff Voltage and Torque Limit settings

Ratings and Reviews

5.0 out of 5
9 Ratings
9 Ratings
Chevytrucks5 ,

This is a must have

I like the ability to change settings on the fly. But I wish the update with all the features would come out soon. I want to be able to view my data logs and update my esc.

Carpdm ,

Life changing

This is the greatest app ever made in the history of the known universe

Smoothbassman ,


If you have not tried this and you have a Castle ESC. You are missing out!!!

It is absolutely the easiest way to program your ESC. I adjusted my braking and throttle curves with ease so I could have better control of my 6S Revo on a Mamba Monster 2 ESC. Had it programmed to my liking in 10 minutes flat.

Best of all. Just with a flick of the ESC switch you can upload another program and test it out. Only thing missing here is an Android application. We will see where this tech goes.

Good job Castle.


Castle Creations, Inc.
27.4 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2018 Castle Creations Inc


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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