Comparison

diBlue vs Bluetooth for Arduino

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

Bluetooth for Arduino

Transform your iPhone or iPad into a wireless remote control for your Arduino projects. Easily connect to your Bluetooth module and send custom commands via keyboard or pre-designed buttons.

Highlights
  • Bluetooth remote control
  • Arduino project control
  • Custom command sending
  • Keyboard input
  • Button interface
  • Connect to Bluetooth modules
Features
Read full description

Do you want to control via bluetooth the Arduino project you built? Let your iPhone or iPad be a remote control for any micro-controller with a bluetooth module. Run the app, search for your bluetooth module and connect. Once you are connected you will be able to send your own commands to your Arduino board using the keyboard or some fancy buttons

Screenshots

diBlue4 screens
Bluetooth for Arduino4 screens

Verdict

The call

The clearest difference is rating: Bluetooth for Arduino at 3.4 against diBlue's 2.8. diBlue's advantage is in-app purchases (none vs 5) and iOS requirement (15.0 vs 18.5). On price, review sentiment, ratings volume and update cadence 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. Bluetooth for Arduino sells 5 one-off in-app purchases. diBlue asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Bluetooth for Arduino holds the better App Store score, 3.4 against 2.8. Both are backed by a comparable volume of ratings — 18 and 42 respectively. Written reviews point the same way: 40% of diBlue's written reviews are positive against 46% of Bluetooth for Arduino's.

UpkeepUpdate frequency

diBlue ships an update monthly, Bluetooth for Arduino every 2 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 6 level
diBlue versus Bluetooth for Arduino: the parameters behind the verdict, then further details
ParameterdiBlueBluetooth for Arduino
PriceFreeFree
Rating2.8 (18 ratings)3.4 (42 ratings) — better
Positive reviews40.0% of reviews45.7% of reviews — better
Number of ratings1842 — better
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.5
Further details — not scored
Size1 MB5 MB
Age rating4+17+
DeveloperDongGuan DESHIDE TECHNOLOGY CO.,LTDGiuseppe Migliore

Customer experience

diBlue

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

Bluetooth for Arduino

All ratings44 ratings
Positive59.1%
Neutral6.8%
Negative34.1%
Written reviews35 reviews
Positive45.7%
Neutral8.6%
Negative45.7%

In-app purchases

None

diBlue

No in-app purchases

5 purchases

Bluetooth for Arduino

One-time5
  • Coffee$0.99
  • Custom$3.99
  • Gamepad$3.99
Show 2 more
  • Terminal$3.99
  • Unlock everything$11.99

Questions

Is diBlue free?
diBlue is free to download, with no in-app purchases.
Is Bluetooth for Arduino free?
Bluetooth for Arduino is free to download, with in-app purchases available.
Which has better reviews, diBlue or Bluetooth for Arduino?
Bluetooth for Arduino is rated higher. diBlue averages 2.8 out of 5 from 18 ratings, while Bluetooth for Arduino averages 3.4 from 42 ratings.
Do diBlue or Bluetooth for Arduino have ads?
Neither diBlue nor Bluetooth for Arduino shows ads.
Which is updated more often, diBlue or Bluetooth for Arduino?
diBlue ships an update monthly, and Bluetooth for Arduino every 2 months. Most recently, diBlue was updated on November 6, 2026 and Bluetooth for Arduino on November 7, 2026.

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