Connect to devices via Bluetooth to retrieve and display diagnostic data. Analyze information obtained through the protocol to troubleshoot and understand device status.






237+ iOS apps curated and reviewed
Looking for free ble diagnostic tool apps? 19 of our 237+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 5.0★ (1) | No | No | Jul 2026 | |
| 2 | Free | 4.9★ (87) | No | No | Jul 2026 | |
| 3 | Free | 4.3★ (940) | No | No | Aug 2026 | |
| 4 | Free | — | No | No | Jun 2026 | |
| 5 | Free | 4.8★ (32K) | Yes | Yes | Aug 2026 | |
| 6 | Free | 4.3★ (615) | No | Yes | Jul 2026 | |
| 7 | Free | 4.5★ (449) | No | No | Aug 2026 | |
| 8 | Free | 4.8★ (1.3K) | No | No | Aug 2026 |






Connect to devices via Bluetooth to retrieve and display diagnostic data. Analyze information obtained through the protocol to troubleshoot and understand device status.






This app is a powerful development tool for Bluetooth Low Energy. It offers comprehensive scanning, connection management, GATT interactions, and detailed logging. Features include DFU support, real-time RSSI plotting, and customizable display formats for data.



This app allows users to interact with Bluetooth Low Energy devices. It supports scanning for, connecting to, and analyzing BLE peripherals, as well as simulating your own BLE devices. It's a comprehensive tool for developers and enthusiasts working with BLE technology.




Monitor your car's performance, diagnose engine issues, and view sensor data in real-time. Customize your dashboard with gauges and charts, and reset fault codes. Supports a wide range of vehicles and offers advanced features for specific car brands.


Explore and manage Bluetooth Low Energy devices with this comprehensive utility. Discover, connect, and analyze BLE signals, including iBeacon and Eddystone data. Ideal for developers and users tracking smart gadgets.


This app is a versatile tool for scanning, exploring, and communicating with Bluetooth Low Energy devices. It also enables your device to act as a peripheral and supports firmware updates for compatible devices.


This browser allows direct smartphone connection to nearby Bluetooth devices from web pages, eliminating the need for native apps. It supports various BLE devices like smart home appliances and medical sensors, enabling interaction and data retrieval.




Easily locate lost Bluetooth devices like fitness trackers and smartwatches. The app displays nearby devices sorted by signal strength or name, then guides you to your selected item using a dashboard.


This app is a powerful Bluetooth Low Energy (BLE) debugging tool. It allows users to discover surrounding BLE devices, connect to multiple devices simultaneously, and read/write characteristic values. Real-time data display and background data reception are supported for easy device debugging.


This utility app offers comprehensive tools for scanning and debugging Bluetooth Low Energy peripheral devices. It allows users to connect, view device information, and interact with services and characteristics. Features include configurable scanning, filtering, sorting, and signal strength tracking.




This application scans for nearby Bluetooth Low Energy devices and presents them in a filterable list. It displays crucial information for each device, including advertised data, signal strength, and timestamps. Users can easily start and stop the scanning process.


Explore nearby Bluetooth devices and examine their services and characteristics. View real-time signal strength, battery levels for your own devices, and identify model names. Extract software versions and read or write characteristic values.


This utility app aids developers in testing and debugging Bluetooth Low Energy applications on Silicon Labs development boards. It simplifies troubleshooting firmware updates, data throughput, and interoperability with a user-friendly interface and built-in demos.


This utility app helps you detect, analyze, and locate Bluetooth Low Energy (BLE) devices. It offers real-time signal monitoring, directional tracking, and data export for various use cases.


This utility app scans for Bluetooth Low Energy (BLE) devices, allowing simultaneous connection to multiple peripherals. It enables interrogation, notification retrieval, and reading/writing of BLE characteristics. Event logs can be exported in CSV format.


This smart diagnostic system connects to your iPhone or iPad to provide on-demand vehicle diagnostics. It offers comprehensive coverage for a wide range of car makes and includes full system diagnosis with various special functions.


This tool helps debug Bluetooth Low Energy (BLE) devices. It allows users to scan for nearby signals, connect to devices, and send commands to specific services. Comprehensive logging is provided for analysis.