BLE Hero

4.7
96 reviews
Content rating
Everyone
5K+
Downloads
Content rating
Everyone
Learn more
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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
May 12, 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
95 reviews
Kent Hunter-Duvar
May 6, 2026
Worked great for my needs. We've had heat pumps installed in our townhomes. Setting the app for them has been difficult. That apps search function returns Bluetooth data, but that data isn't on the interior heads, so finding yours out of the dozen or more found is difficult. This app gives me the required info and signal strength to identify which are mine and in which room. If you have a Bluetooth signal issue, try this app.
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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😅
1 person found this review helpful
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onceLabs
March 2, 2026
Thanks for the feedback and reporting the broken links! We will correct the links in the next release
Tigerlily Helen Heinz
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
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onceLabs
January 7, 2026
Feel free to send an email to support@onceLabs.com and we’d be happy to help

What’s new

- Resolve a crash related to parsing Eddystone beacons
- Minor UI tweaks