Castle Link vs R1WURKS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Castle Link
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.
- Wireless programming via Bluetooth
- Firmware updates
- Save and load custom profiles
- Sync settings across iOS devices
- Offline functionality
- Data log viewing
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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)
R1WURKS
This utility app connects to your ESC and smart devices, allowing wireless programming and real-time racing data monitoring. It stores up to 50 minutes of driving information for easy review and analysis.
- Wireless ESC programming
- Real-time racing data
- Driving data storage
- Smart device connectivity
- iPhone and iPad support
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This R1WURKS DIGITAL-3 ESC is connected to ESC and smart device like i-phone, tablet pc and program can be set with wireless system. You can also check actual racing data in real time, and racing information up to 50mintes can be stored so that users can easily find and know the character of the driving.
Screenshots
Verdict
The clearest difference is rating: R1WURKS at 4.0 against Castle Link's 1.8. Castle Link's advantage is update cadence (monthly vs every 2 months). On price, review sentiment, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
R1WURKS holds the better App Store score, 4.0 against 1.8. Both are backed by a comparable volume of ratings — 32 and 14 respectively. Written reviews complicate that: 18% of Castle Link's written reviews are positive against 17% of R1WURKS's, so the app with the better star average is not the one people write more warmly about.
Castle Link ships an update monthly, R1WURKS every 2 months. Both last shipped on October 24, 2026.
| Parameter | Castle Link | R1WURKS |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (32 ratings) | 4.0 (14 ratings) — better |
| Positive reviews | 18.2% of reviews — better | 16.7% of reviews |
| Number of ratings | 32 — better | 14 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 39 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Castle Creations Inc | Steve Villanueva |
Customer experience
Castle Link
R1WURKS
Bugs and requests
Castle Link
Reported bugs
16 issues- App crashes on passcode entry
- App freezes
- Bluetooth connection problems
- Bricking ESCs
- Throttle curve not working
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- Demo mode not functional
- Torque settings not saving
- Motor test not selectable
- Data logging issues
- Latest update causing problems
- Incompatibility with newer products
- Loading screen stuck
- Locking out ESC and beeping
- ESC not recognized by app
- Lost connection to ESC
- Firmware update failure
Requested features
9 requests- Add data logging to iOS app
- Allow viewing data logs on phone
- Fix throttle curve interface
- Add Android application
- Make motor test selectable
Show 4 moreShow fewer
- Fix data logging history clearing
- Allow firmware updates via app
- Support for newer ESCs (e.g., Copperhead)
- Allow app to work with cables
R1WURKS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Castle Link
No in-app purchases
R1WURKS
No in-app purchases
