CastleLink2 vs R1 Digital Pro Premium
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.
R1 Digital Pro Premium
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R1 Digital Pro Premium is the companion app for the R1 Digital Pro brushless ESC. Connect over Bluetooth to tune every setting, watch live temperatures and voltage, and keep your ESC on the latest firmware, right from your iPhone. ESC SETUP • Every ESC setting in one place: change a value, see exactly what changed, then send it to the ESC in one tap. • Save named setups on your phone, load them back, and share setup files with teammates. Works with setup files from the original Digital Pro apps. • History shows everything you saved or sent, and reloads any earlier setup. LIVE DATA • Big, clear ESC temperature, motor temperature, voltage, RPM and speed while you drive. • Speed from your tire size, gearing and motor poles, in mph or km/h. • Lock Screen and Dynamic Island readout, plus a Home Screen and Lock Screen widget. • Apple Watch app with the same numbers on your wrist, and your heart rate next to your temperatures. DATALOGS • Every drive is recorded and split into runs, with peak temperatures, lowest voltage and your notes. • Export to a spreadsheet file. ALERTS • Set your own warning temperatures and choose phone vibration and sound, a watch buzz, or a tone in your earphones. WIRELESS MODULE AND FIRMWARE • Rename your ESC's Bluetooth module and set its password, so you only connect to your own car at a busy track. • Update the ESC firmware over Bluetooth with a guided, verified process. DEMO MODE • No ESC with you? Turn on Demo mode in System Setting and try every screen with a simulated ESC. PRIVACY No account, no ads, no tracking. Your setups, logs and heart rate stay on your phone. Bluetooth is used only to talk to your ESC. R1 Digital Pro Premium requires an R1 Digital Pro ESC with its Bluetooth module.
Screenshots
Verdict
The clearest difference is iOS requirement: R1 Digital Pro Premium at 16.4 against CastleLink2's 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.
| Parameter | CastleLink2 | R1 Digital Pro Premium |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 35 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Castle Creations Inc | Steve Villanueva |
In-app purchases
CastleLink2
No in-app purchases
R1 Digital Pro Premium
No in-app purchases
Questions
Is CastleLink2 free?
Is R1 Digital Pro Premium free?
Do CastleLink2 or R1 Digital Pro Premium have ads?
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