BLE Hero

4.7
78 reviews
5K+
Downloads
Content rating
Everyone
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About this app

BLE Hero for Android is your all-in-one Bluetooth LE development companion.

🤔 Whether you’re a professional engineer, firmware developer, or IoT hobbyist, BLE Hero puts powerful scanning, Firmware Upgrade, GATT exploration, and logging tools right in your pocket.

🎥 Built-In Tutorials
• Step-by-step video guides under the Help section

🌗 Light & Dark Themes with Extra Personality
• Automatically matches your system theme or choose manually

🔄 DFU (Device Firmware Update) Support
• MCUBoot
• Legacy Nordic DFU
• Send us a request for any other platforms you would like support for

🔍 BLE Scanning & Discovery
• Regularly updated list of Bluetooth SIG Company IDs
• Powerful search—filter by any field in the advertisement packet
• Real-time RSSI
• Real-time advertisment interval estimation
• Detailed raw advertisement data view
• “Favorite” devices & permanent ignore list
• Locator mode to help locate devices

🔗 Connection Management
• Maintain simultaneous connections to dozens of devices
• Automatic reconnect from any screen—no need to restart your scan

🧩 GATT Explorer
• Browse services, characteristics & descriptors
• Read value formats: HEX | ASCII | UInt8 arrays
• Notifications & indication handling
• Detailed read/write history with timestamps
• Custom keyboards for writing: HEX, ASCII & Decimal

📜 Advanced Logging & Diagnostics
• Industry-leading, low-level BLE event logging
• Searchable log viewer (advertisements, connections, GATT events, system status)
• Error descriptions on disconnects, failed operations & more
• Enable/disable individual log categories on the fly
• Export logs as text (email, cloud storage, file system)
• JSON, CSV, and TXT log export formats

Why Choose BLE Hero?
• Precision: Dive into every byte of your Bluetooth LE packets.
• Flexibility: From DFU to diagnostics, one app does it all.
• Usability: Intuitive UI with light/dark modes and in-app tutorials.
Updated on
Feb 1, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.7
78 reviews
Ninjai “NinJai” NinJai
March 2, 2026
so far it seems like it could be quite a useful tool.. still trying to figure it out. would be nice if I could lable known devices and categorize them to make the data easier to parse. I know there's tutorials but the webpage link is broken. somebody should sort that out. I can find it probably if I poke around the site a bit, but its a bit unwieldly and I went down a different path and got distracted😅
Did you find this helpful?
onceLabs
March 2, 2026
Thanks for the feedback and reporting the broken links! We will correct the links in the next release
Shawn Thompson
February 22, 2026
kind of worked to find my device. got me in the general area and then nothing. used a different app in the same area and found the missing device.
Did you find this helpful?
onceLabs
February 23, 2026
Hi Shawn, BLE Hero includes device scanning and signal tools, but it’s built primarily for engineers and developers working on Bluetooth products. We’re sorry you had trouble locating your device. Please email support@oncelabs.com with details and we’ll review what happened and see how we can improve.
Minnie Bartels
January 13, 2026
Trying to diagnose why our watch isn't connecting to other apps that have a more aesthetically pleasing interface like Samsung Health and other generic watch apps we still can't see the watch. Tapping the build number took us to the settings but the language barrier made us appreciate other brands.
1 person found this review helpful
Did you find this helpful?
onceLabs
January 7, 2026
Feel free to send an email to support@onceLabs.com and we’d be happy to help

What’s new

- Fix RSSI on channel sounding dashboard
- Added support for nicknaming custom characteristics
- Added support for nicknaming custom services
- General stability updates