diBlue vs Device Protocol Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Device Protocol Studio
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Device Protocol Studio (DPS) is a professional communication, protocol development, and testing toolkit built for embedded developers, firmware engineers, hardware engineers, and IoT developers. Connect to real hardware, simulate virtual devices, design custom protocols, monitor live data, and build repeatable test workflows — all from your iPhone. SUPPORTED COMMUNICATION • Bluetooth Low Energy (BLE) • TCP Client / Server • UDP • MQTT • WebSocket • HTTP / REST • CoAP DEVICE COMMUNICATION Connect to real devices and inspect communication in real time. • BLE scanning and connection • GATT service and characteristic exploration • Read, Write, and Notify operations • Dynamic RX / TX characteristic binding • TCP, UDP, MQTT, WebSocket, HTTP, and CoAP communication • Real-time terminal with ASCII, text, and binary workflows REAL-TIME DATA & PLOTTING Turn incoming device data into live engineering telemetry. • Multi-channel real-time plotting • Live CSV / ASCII data monitoring • High-speed data updates • Session logging and data export • Real-time RX / TX monitoring PROTOCOL DESIGNER Build and test your own communication protocols directly on your device. • Custom packet field definitions • Header and footer fields • Length and opcode fields • Payload configuration • CRC and checksum support • Custom field ordering • Reusable protocol presets VIRTUAL DEVICES Test communication workflows even when physical hardware is not available. • Built-in virtual device environment • BLE virtual device testing • TCP / UDP virtual communication • Simulated sensor data • Rapid protocol and UI verification TEST STUDIO Create repeatable communication tests for device and protocol development. • Command and response testing • Expected-response validation • Automated test sequences • Timeout and failure detection • Reusable test scenarios BUILT FOR ENGINEERS DPS is designed to reduce the number of separate tools needed during embedded and IoT development. Use one workspace to connect, inspect, design, simulate, plot, log, and test your device communication. PRIVACY-FIRST Your engineering data stays under your control. DPS is designed around local workflows without requiring external cloud synchronization for core development and testing. Whether you are debugging a BLE peripheral, testing a TCP device, designing a binary protocol, monitoring sensor telemetry, or validating command/response behavior, Device Protocol Studio gives you a portable engineering workspace directly on your iPhone.
Screenshots
Verdict
The clearest difference is in-app purchases: diBlue at none against Device Protocol Studio's 1. Device Protocol Studio's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement 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
Both are free to download. Device Protocol Studio sells 1 one-off in-app purchase. diBlue asks for nothing beyond the download.
diBlue ships an update every 2 months, Device Protocol Studio every 3 weeks. Both last shipped on October 25, 2026.
| Parameter | diBlue | Device Protocol Studio |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (18 ratings) — better | — |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 1 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | DongGuan DESHIDE TECHNOLOGY CO.,LTD | HYOGEUN KIM |
In-app purchases
diBlue
No in-app purchases
Device Protocol Studio
- DPS Pro$9.99
Questions
Is diBlue free?
Is Device Protocol Studio free?
Do diBlue or Device Protocol Studio have ads?
Which is updated more often, diBlue or Device Protocol Studio?
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