Comparison

diBlue vs Bluetooth Serial Connect

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

diBlue

This utility app facilitates efficient communication with specific DSD TECH Bluetooth modules. It supports a range of relay and BLE modules, streamlining interactions and saving users time. Compatible with various DSD TECH Bluetooth devices.

Highlights
  • Efficient communication with Bluetooth modules
  • Supports DSD TECH Bluetooth Relay modules
  • Supports DSD TECH SH-HC-08, SH-M08, HM-10, SH-11 modules
  • Supports DSD TECH Bluetooth BLE modules
  • Saves user time
Features
Read full description

DSD TECH Bluetooth is now diBlue. Version 2.4 updates the same app under its new name; existing users can update their current installation. diBlue is a practical workspace for compatible Bluetooth Low Energy devices and DSD TECH relay modules. Discover devices, exchange Text or HEX data and keep frequently used commands close at hand. FIND AND ORGANIZE DEVICES - Scan nearby BLE devices and view their names and signal strength. - Save favorites and assign local aliases without changing the hardware name. - Switch between All and Favorites, view device details and choose a device type. - Copy a device's iOS UUID from its details. This identifier is not its hardware MAC address. - Hide unrelated devices from discovery results and restore them from Settings when needed. SEND COMMANDS AND REUSE YOUR WORK - Send and receive Text or HEX data. - Send once or repeat at a chosen interval, with a stop control. - Choose None, CR, LF or CRLF line endings for text commands. - Reuse recent commands from History and save frequently used commands in Starred. - Selecting a saved command fills the input for review; it does not send automatically. - Read color-coded send and receive logs, with optional timestamps and automatic scrolling. CONTROL COMPATIBLE DSD TECH RELAYS - Detect the channel count on supported one- and four-channel modules. - View device-reported channel states and refresh them when needed. - Control individual channels or use All on and All off on four-channel modules. - Confirm control results through a follow-up status query to the device. CHOOSE YOUR LANGUAGE AND DISPLAY PREFERENCES The interface supports English, Simplified Chinese, Traditional Chinese (Taiwan), German, French, Spanish (Spain), Italian, Portuguese (Portugal) and Japanese. Follow your system language or choose a language in Settings. You can also keep the screen on while connected and adjust log timestamps and automatic scrolling. LOCAL STORAGE, NO ACCOUNT REQUIRED diBlue contains no ads and requires no account. Device profiles, favorites, aliases, settings, command history and starred commands are stored locally. Apple-managed backups and device transfers may preserve this data according to your settings. COMPATIBILITY Requires iOS 15 or later and compatible BLE hardware. Classic Bluetooth SPP devices are not supported. Data transfer requires the supported FFE0 service and FFE1 characteristic; relay controls require the supported DSD TECH relay protocol. diBlue does not work with every Bluetooth device. Bluetooth permission is required to discover and connect to nearby devices. The app does not request location permission. Support: dsd_tech@outlook.com

About

Bluetooth Serial Connect

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
Read full description

Turn your iPhone or iPad into a custom control panel for Arduino and BLE projects, without building a dedicated iOS app. Bluetooth Serial Connect lets you design a board, connect to an HM-10-style Bluetooth Low Energy (BLE) UART module, and exchange commands and live readouts with your hardware. The companion Bluetooth Serial Connect Arduino library makes it straightforward to read controls and update displays, indicators, and gauges in your sketch. DESIGN YOUR BOARD Place, move, resize, and customize nine component types: • Buttons with momentary, latch, and repeat behavior • Joysticks, sliders, toggles, and D-pads • Text displays, labels, indicators, and gauges Assign channel numbers that stay fixed when you rearrange controls. Fine-tune colors, labels, value ranges, board appearance, and haptic feedback. Undo and redo changes, duplicate and lock controls, snap them to the grid, and adjust their front-to-back order. START WITH TEMPLATES AND EXAMPLES Explore seven editable board templates for RC cars, robotic arms, menu remotes, sensor hubs, smart-home relays, and more. Companion Arduino sketches and protocol examples help you connect the app to your code. Follow the interactive walkthrough or try a board with simulated data—no hardware required. Import, export, share, and duplicate boards as your projects grow. CONNECT AND TROUBLESHOOT Scan for nearby BLE devices, follow clear connection progress, remember frequently used modules for quick reconnecting, and configure service and characteristic UUIDs. Use the timestamped two-way console to inspect sent and received messages or send console text while you troubleshoot. Setup guides, wiring help, complete examples, and the wire protocol reference are available at bluetooth.henhen1227.com. Bluetooth Serial Connect is designed for HM-10-style BLE modules. Other BLE UART hardware may work when its service and characteristic UUIDs match the app settings. HC-05 and HC-06 Bluetooth Classic modules are not supported. A compatible BLE module is required for live hardware control. FREE OR PRO Start with one board free. Add more by watching rewarded ads, or unlock Bluetooth Serial Pro with a one-time in-app purchase for unlimited boards and no ads. The free version may also show occasional ads after edits. Existing boards remain available to use. No app account is required. Board files stay on your device unless you choose to share them.

Screenshots

diBlue4 screens
Bluetooth Serial Connect4 screens

Verdict

The call

The clearest difference is rating: Bluetooth Serial Connect at 3.7 against diBlue's 2.8. diBlue's advantage is review sentiment (40% vs 0%) and ads (none vs shown). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Bluetooth Serial Connect holds the better App Store score, 3.7 against 2.8. Both are backed by a comparable volume of ratings — 18 and 7 respectively. Written reviews complicate that: 40% of diBlue's written reviews are positive against 0% of Bluetooth Serial Connect's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

diBlue ships an update every 3 months, Bluetooth Serial Connect every 10 months. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
diBlue versus Bluetooth Serial Connect: the parameters behind the verdict, then further details
ParameterdiBlueBluetooth Serial Connect
PriceFreeFree
Rating2.8 (18 ratings)3.7 (7 ratings) — better
Positive reviews40.0% of reviews — better0.0% of reviews
Number of ratings18 — better7
Update frequencyEvery 3 months — betterEvery 10 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.2
Further details — not scored
Size1 MB24 MB
Age rating4+4+
DeveloperDongGuan DESHIDE TECHNOLOGY CO.,LTDHenry Abrahamsen

Customer experience

diBlue

All ratings18 ratings
Positive33.3%
Neutral22.2%
Negative44.4%
Written reviews10 reviews
Positive40.0%
Neutral40.0%
Negative20.0%

Bluetooth Serial Connect

All ratings7 ratings
Positive57.1%
Neutral28.6%
Negative14.3%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

diBlue

No in-app purchases

None

Bluetooth Serial Connect

No in-app purchases

Questions

Is diBlue free?
diBlue is free to download, with no in-app purchases.
Is Bluetooth Serial Connect free?
Bluetooth Serial Connect is free to download, with no in-app purchases.
Which has better reviews, diBlue or Bluetooth Serial Connect?
Bluetooth Serial Connect is rated higher. diBlue averages 2.8 out of 5 from 18 ratings, while Bluetooth Serial Connect averages 3.7 from 7 ratings.
Do diBlue or Bluetooth Serial Connect have ads?
Bluetooth Serial Connect shows ads; diBlue does not.
Which is updated more often, diBlue or Bluetooth Serial Connect?
diBlue ships an update every 3 months, and Bluetooth Serial Connect every 10 months. Most recently, diBlue was updated on October 24, 2026 and Bluetooth Serial Connect on October 24, 2026.

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