HW Link V2 vs CastleLink2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HW Link V2
This application allows users to wirelessly program ESC parameters on compatible car, aircraft, and boat electronic speed controllers. Connect via a WiFi module or OTA Programmer to adjust settings remotely from your smartphone.
- Wireless ESC programming
- Remote parameter adjustment
- Smartphone control
- Supports car, aircraft, and boat ESCs
- Compatible with HW WiFi express module/OTA Programmer
Read full descriptionHide full description
The ESC can now use a wireless connection via the use of the HW WiFi express module or OTA Progammer for thefollowing operating systems ; iOS phone (using the HW LINK V2 APP) users can easily andremotely (without leaving the control stand) program the ESC parameters displayed on the smartphone to their own preference.Work on the XERUN series, EZRUN series of car ESCs, and the Platinum series of aircraft ESCs, and SEAKING PRO series of boat ESCs.
CastleLink2
Connect to Castle Creations ESCs and BECs via Bluetooth to adjust settings, update firmware, and view data logs. Compatible with a wide range of ESCs and BECs, supporting both B-Link hardware versions.
- Connect to Castle Creations ESCs/BECs
- Adjust settings
- Update firmware
- View data logs
- Supports B-Link adapters
- Wide ESC/BEC compatibility
Read full descriptionHide full description
Allows you to connect to most Castle Creations ESCs and BECs using the B-Link Bluetooth adapter. Adjust settings, update firmware, and view data logs (on supported products). Compatible with all Cobra, Talon, Copperhead, and X-series ESCs. It will also work with most Mamba and Sidewinder ESCs; as well as the CC BEC Pro and both CC BEC 2.0s. Supports the original B-Link and B-Link 2 hardware versions. Visit www.castlecreations.com/b-link for more information.
Screenshots
Verdict
The clearest difference is rating: CastleLink2 at 5.0 against HW Link V2's 3.5. CastleLink2 also leads on update cadence (monthly vs every 3 months). HW Link V2's advantage is ratings volume (34 vs 2) and iOS requirement (11.0 vs 26.0). On price, ads, in-app purchases and monetization model 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.
CastleLink2 holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: HW Link V2 has 34 ratings behind it against 2, so its average is the more settled of the two.
HW Link V2 ships an update every 3 months, CastleLink2 monthly. The most recent releases landed on August 18, 2026 and September 8, 2026 respectively.
| Parameter | HW Link V2 | CastleLink2 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (34 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 28.9% of reviews | — |
| Number of ratings | 34 — better | 2 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 53 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Hobbywing Technology Co.,Ltd | Castle Creations Inc |
Customer experience
HW Link V2
CastleLink2
In-app purchases
HW Link V2
No in-app purchases
CastleLink2
No in-app purchases
