Comparison

diBlue vs MicroBlue

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 connects to compatible Bluetooth Low Energy devices and DSD TECH relay modules. It allows users to discover devices, send and receive text or HEX data, and control relay modules. The interface supports multiple languages and stores all data locally without requiring an account or displaying ads.

Highlights
  • Discover and organize BLE devices
  • Send and receive Text or HEX data
  • Repeat commands at intervals
  • Control DSD TECH relay modules
  • Multi-language interface
  • Local data storage
  • Ad-free experience
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

MicroBlue

This app connects to microcontrollers via Bluetooth/BLE, offering a customizable interface for control and interaction. It supports various components like joysticks and buttons, streamlining hobbyist and professional projects.

Highlights
  • Bluetooth/BLE connectivity
  • Customizable control interface
  • D-pads, joysticks, buttons, sliders
  • Text input support
  • Works with Arduino and Raspberry Pi
  • Writable custom service communication
Features
Read full description

MicroBlue is a companion app for microcontroller projects. Connect to your board over Bluetooth Low Energy (BLE), control it from your phone, and see what it sends back. DRIVE Two halves, each a D-Pad, Joystick, Tank (one stick per side), Tilt (steer by tilting the phone), Panel or Console. Leaving the Drive screen or the app sends the stop position. Buttons, switches, sliders with your own min and max, steppers, color buttons and text fields. Each sends its value with an id you choose. DISPLAYS Show what your board sends: a Value with its unit, a Bar, an LED, or a Chart of the last 10, 30 or 60 seconds that draws up to 4 lines from values like x,y,z. CONSOLE AND RECORDING See every message sent and received. Record a session to a CSV file and open it in Google Sheets, Excel or Numbers, great for classroom experiments. LAYOUTS Save a layout for each project and switch between them. Share a layout with a whole class by QR code or link; students add it with Scan QR Code. A STEADY CONNECTION • A heartbeat lets your board's program stop safely when the phone goes out of range or the app closes (can be turned off in Settings) • Reconnects to your board automatically • Shows the signal strength • Choose what to send to and receive from on each board WORKS WITH Boards with built-in BLE or an HM-10 module, such as the Arduino UNO R4 WiFi, Arduino UNO R3 or UNO R4 Minima with an HM-10, Raspberry Pi Pico W (or Pico with an HM-10) and ESP32-S3. Messages use a simple format in both directions: [0x01] id [0x02] value [0x03]. Help in the app shows what each control sends. Requires iOS 16.4 or later. For assistance and more information, visit: https://snappyxo.io/microblue.

Screenshots

diBlue4 screens
MicroBlue4 screens

Verdict

The call

The clearest difference is rating: MicroBlue at 4.7 against diBlue's 2.8. diBlue's advantage is update cadence (monthly vs every 5 months) and ratings volume (18 vs 3). On price, ads, 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

MicroBlue holds the better App Store score, 4.7 against 2.8. That said, the two scores are not equally well evidenced: diBlue has 18 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

diBlue ships an update monthly, MicroBlue every 5 months. The most recent releases landed on November 6, 2026 and November 12, 2026 respectively.

Scorecard4 real differences · 6 level
diBlue versus MicroBlue: the parameters behind the verdict, then further details
ParameterdiBlueMicroBlue
PriceFreeFree
Rating2.8 (18 ratings)4.7 (3 ratings) — better
Positive reviews40.0% of reviews—
Number of ratings18 — better3
Update frequencyMonthly — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size1 MB38 MB
Age rating4+4+
DeveloperDongGuan DESHIDE TECHNOLOGY CO.,LTDMechanismic Inc.

Customer experience

diBlue

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

MicroBlue

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

diBlue

No in-app purchases

None

MicroBlue

No in-app purchases

Questions

Is diBlue free?
diBlue is free to download, with no in-app purchases.
Is MicroBlue free?
MicroBlue is free to download, with no in-app purchases.
Which has better reviews, diBlue or MicroBlue?
MicroBlue is rated higher. diBlue averages 2.8 out of 5 from 18 ratings, while MicroBlue averages 4.7 from 3 ratings.
Do diBlue or MicroBlue have ads?
Neither diBlue nor MicroBlue shows ads.
Which is updated more often, diBlue or MicroBlue?
diBlue ships an update monthly, and MicroBlue every 5 months. Most recently, diBlue was updated on November 6, 2026 and MicroBlue on November 12, 2026.

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