# BlueTools Bluetooth Assistant vs YDS Storybook

The clearest difference is in-app purchases: YDS Storybook at none against BlueTools Bluetooth Assistant's 2. YDS Storybook also leads on ads (none vs shown). BlueTools Bluetooth Assistant's advantage is device support (3 vs 1). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. BlueTools Bluetooth Assistant sells 2 in-app purchases, starting at $0.99 per month. YDS Storybook asks for nothing beyond the download.

BlueTools Bluetooth Assistant ships an update every 5 weeks, YDS Storybook every 6 weeks. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | BlueTools Bluetooth Assistant | YDS Storybook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/bluetools-bluetooth-assistant/id1526436386/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 64.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 32 MB | 5 MB |
| Requires iOS | **15** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [仕华 罗](https://appshunter.io/developer/1066728652) | [Taekwan Hwang](https://appshunter.io/developer/1483838253) |

## What reviewers say

### BlueTools Bluetooth Assistant

[App page](https://appshunter.io/ios/app/bluetools-bluetooth-assistant/id1526436386)

This tool allows developers to scan, connect to, and debug Bluetooth Low Energy devices. It offers a serial terminal for sending and receiving data in various formats and helps locate devices by displaying signal strength.

**Highlights:** BLE device discovery, GATT service and characteristic browsing, RSSI signal strength display, Hex, Binary, String, Number data formats, Serial terminal for data send/receive, Device direction inference

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads monthly | $0.99 | per month |
| Remove ads yearly | $9.99 | per year |


### YDS Storybook

[App page](https://appshunter.io/ios/app/yds-storybook/id1584167620)

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

**In-app purchases:** none


## Frequently asked questions

### Is BlueTools Bluetooth Assistant free?

BlueTools Bluetooth Assistant is free to download, with in-app purchases available.

### Is YDS Storybook free?

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

### Do BlueTools Bluetooth Assistant or YDS Storybook have ads?

BlueTools Bluetooth Assistant shows ads; YDS Storybook does not.

### Which is updated more often, BlueTools Bluetooth Assistant or YDS Storybook?

BlueTools Bluetooth Assistant ships an update every 5 weeks, and YDS Storybook every 6 weeks. Most recently, BlueTools Bluetooth Assistant was updated on November 11, 2026 and YDS Storybook on November 7, 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.*