# BlueS vs Web Development SDK

The clearest difference is price: BlueS at Free against Web Development SDK's $9.99. BlueS also leads on update cadence (every 3 weeks vs every 4 months) and iOS requirement (13.0 vs 18.1). Web Development SDK's advantage is device support (3 vs 1). On ads and in-app purchases there is nothing between them.

BlueS is free to download; Web Development SDK costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BlueS ships an update every 3 weeks, Web Development SDK every 4 months. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | BlueS | Web Development SDK |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Size | 3 MB | 1 MB |
| Requires iOS | **13.0** | 18.1 |
| Devices | iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Yueyu Zhao](https://appshunter.io/developer/1689319351) | [Lucas Exequiel Di Tomase](https://appshunter.io/developer/1456307400) |

## What reviewers say

### BlueS

[App page](https://appshunter.io/ios/app/blues-bluetooth-simulator/id6468956150)

**Features:** macOS Compatibility

**In-app purchases:** none


### Web Development SDK

[App page](https://appshunter.io/ios/app/web-development-sdk/id6547853178)

**In-app purchases:** none


## Frequently asked questions

### Is BlueS free?

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

### Is Web Development SDK free?

Web Development SDK costs $9.99, with no in-app purchases.

### Do BlueS or Web Development SDK have ads?

Neither BlueS nor Web Development SDK shows ads.

### Which is updated more often, BlueS or Web Development SDK?

BlueS ships an update every 3 weeks, and Web Development SDK every 4 months. Most recently, BlueS was updated on November 7, 2026 and Web Development SDK on November 8, 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.*