# Bluetooth Serial Connect vs Device Protocol Studio

The clearest difference is in-app purchases: Bluetooth Serial Connect at none against Device Protocol Studio's 1. Device Protocol Studio's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 10 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Device Protocol Studio sells 1 one-off in-app purchase. Bluetooth Serial Connect asks for nothing beyond the download.

Bluetooth Serial Connect ships an update every 10 months, Device Protocol Studio every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Bluetooth Serial Connect | Device Protocol Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (7 ratings)](https://appshunter.io/ios/app/bluetooth-serial-connect/id6449396821/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 24 MB | 29 MB |
| Requires iOS | 16.2 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Henry Abrahamsen](https://appshunter.io/developer/1544660671) | [HYOGEUN KIM](https://appshunter.io/developer/6807829185) |

## What reviewers say

### Bluetooth Serial Connect

[App page](https://appshunter.io/ios/app/bluetooth-serial-connect/id6449396821)

Control your Arduino projects with your phone. Design custom interfaces with buttons, joysticks, and displays to send and receive data via Bluetooth low-energy modules. An integrated library simplifies the connection process.

**Highlights:** Customizable control boards, Button and joystick inputs, Display integration, Bluetooth low-energy module support, Arduino library for easy integration

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

**In-app purchases:** none


### Device Protocol Studio

[App page](https://appshunter.io/ios/app/device-protocol-studio/id6807829183)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DPS Pro | $9.99 | one-time |


## Frequently asked questions

### Is Bluetooth Serial Connect free?

Bluetooth Serial Connect is free to download, with no in-app purchases.

### Is Device Protocol Studio free?

Device Protocol Studio is free to download, with in-app purchases available.

### Do Bluetooth Serial Connect or Device Protocol Studio have ads?

Bluetooth Serial Connect shows ads; Device Protocol Studio does not.

### Which is updated more often, Bluetooth Serial Connect or Device Protocol Studio?

Bluetooth Serial Connect ships an update every 10 months, and Device Protocol Studio every 3 weeks. Most recently, Bluetooth Serial Connect was updated on October 24, 2026 and Device Protocol Studio on October 25, 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.*