CastleLink2 vs DataLink V3
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
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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.
DataLink V3
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DataLink V3 Box Supports Hobbywing ESC Settings, Firmware Update & Data Analysis.
Screenshots
Verdict
The clearest difference is update cadence: CastleLink2 at monthly against DataLink V3's every 9 months. DataLink V3's advantage is iOS requirement (14.0 vs 26.0). On price, ads, in-app purchases and device support 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 ships an update monthly, DataLink V3 every 9 months. The most recent releases landed on September 8, 2026 and August 18, 2026 respectively.
| Parameter | CastleLink2 | DataLink V3 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Castle Creations Inc | Hobbywing Technology Co.,Ltd |
In-app purchases
CastleLink2
No in-app purchases
DataLink V3
No in-app purchases
