# BL vs CastleLink2

The clearest difference is rating: CastleLink2 at 5.0 against BL's 4.3. CastleLink2 also leads on update cadence (monthly vs every 2 months). BL's advantage is ratings volume (8 vs 2) and iOS requirement (9.0 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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 4.3. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

BL ships an update every 2 months, CastleLink2 monthly. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | BL | CastleLink2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (8 ratings)](https://appshunter.io/ios/app/bl-wm-wizard/id1216569821/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/castlelink2/id6743709203/reviews)** |
| Number of ratings | **8** | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 24 MB | 35 MB |
| Requires iOS | **9.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [naoya kitagawa](https://appshunter.io/developer/1216569760) | [Castle Creations Inc](https://appshunter.io/developer/1377811229) |

## What reviewers say

### BL

[App page](https://appshunter.io/ios/app/bl-wm-wizard/id1216569821)

This utility allows users to remotely adjust settings for specific ESC models via a smartphone. It enables real-time monitoring of various performance metrics during operation and detailed post-run data analysis through graphs. The app also facilitates firmware updates for compatible ESCs.

**Highlights:** Adjust ESC settings remotely, Customize power curves, Save ESC settings to smartphone, Live performance monitoring, Post-run data graphing, Update ESC firmware

**Features:** macOS Compatibility

**In-app purchases:** none


### CastleLink2

[App page](https://appshunter.io/ios/app/castlelink2/id6743709203)

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.

**Highlights:** Connect to Castle Creations ESCs/BECs, Adjust settings, Update firmware, View data logs, Supports B-Link adapters, Wide ESC/BEC compatibility

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BL free?

BL is free to download, with no in-app purchases.

### Is CastleLink2 free?

CastleLink2 is free to download, with no in-app purchases.

### Which has better reviews, BL or CastleLink2?

CastleLink2 is rated higher. BL averages 4.3 out of 5 from 8 ratings, while CastleLink2 averages 5.0 from 2 ratings.

### Do BL or CastleLink2 have ads?

Neither BL nor CastleLink2 shows ads.

### Which is updated more often, BL or CastleLink2?

BL ships an update every 2 months, and CastleLink2 monthly. Most recently, BL was updated on October 6, 2026 and CastleLink2 on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*