# BL vs ZTW

The clearest difference is rating: BL at 4.3 against ZTW's 1.0. BL also leads on iOS requirement (9.0 vs 12.4). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BL holds the better App Store score, 4.3 against 1.0. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

BL ships an update every 2 months, ZTW every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | BL | ZTW |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (8 ratings)](https://appshunter.io/ios/app/bl-wm-wizard/id1216569821/reviews)** | [1.0 (4 ratings)](https://appshunter.io/ios/app/ztw/id1639898771/reviews) |
| Number of ratings | **8** | 4 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 24 MB | 8 MB |
| Requires iOS | **9.0** | 12.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [naoya kitagawa](https://appshunter.io/developer/1216569760) | [Shenzhen ZTW Model Science&Technology Co.,Ltd](https://appshunter.io/developer/1681012514) |

## 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


### ZTW

[App page](https://appshunter.io/ios/app/ztw/id1639898771)

Connects your mobile device to your ESC via Bluetooth to adjust parameters, view data, and update firmware. Offers essential control for electronic speed controllers.

**Highlights:** Bluetooth ESC connection, Parameter adjustment, Data viewing, Firmware upgrades

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BL free?

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

### Is ZTW free?

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

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

BL is rated higher. BL averages 4.3 out of 5 from 8 ratings, while ZTW averages 1.0 from 4 ratings.

### Do BL or ZTW have ads?

Neither BL nor ZTW shows ads.

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

BL ships an update every 2 months, and ZTW every 3 months. Most recently, BL was updated on November 2, 2026 and ZTW on November 3, 2026.

---

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