BLE Hero 4+

Conquer Bluetooth Low Energy

onceLabs LLC

Designed for iPad

    • Free



BLE Hero is a comprehensive development tool for engineers, software developers, or anyone developing Bluetooth Low Energy enabled products or applications.

Light and Dark Modes!

- Video Tutorials Under the Help Section

DFU Support:
- Nordic Semiconductor
- Cypress, Silabs, + STMicro coming soon

BLE Scanning:
- Company IDs from Bluetooth SIG
- Search function: Search by any values included in advertisement data
- Real-time RSSI plot for each discovered peripheral
- Real-time estimated advertisement interval
- Full listing of all advertisement data for each discovered peripheral
- Favorites support
- Ability to permanently ignore devices
- Locator Mode!

- Ability to maintain connections to many devices at the same time

GATT Interactions:
- Attempt reconnection from anywhere in the app! No need to return to the scan results to reconnect

- Explore GATT services, characteristics, and descriptors

- Read characteristics, notifications/indications
----> Display formats: HEX, ASCII, or UInt8 byte array
----> Read and notification history with timestamps within characteristic view

- Write characteristics
----> HEX, ASCII, and Decimal keyboards
----> Write formats: HEX, ASCII, and Decimal
----> Viewable write history with timestamps within characteristic view

- Descriptors and descriptor values

- Notifications/Indications

- Most detailed logging available
- Search function to search for specific events
- Logging occurs at a low level, providing detailed information about all BLE events
- Advertisement data
- Connection events with error descriptions
- Disconnection events with error descriptions
- Read/write characteristic events with error descriptions
- Notification/indication events
- GATT discovery events
- System status events
- Fully configurable: enable or disable each of the log event types
- Export logs as text files via email, text, etc..., or save to files

What’s New

Version 3.1.8

Added ability to export log data from individual characteristics

Ratings and Reviews

4.8 out of 5
48 Ratings

48 Ratings

terriblegame45653 ,


I have tried dozens of BLE apps for my research, I have deleted all the rest. This is the gold standard. Thank you for a great app!

Sloth claw ,

Will show ewe. The iOB. Parasitic Unknowns

....... where do my reviews keep failing....

Works for now. But freezes all the time when i try connecting to my favorite unknown devices of choice.

Connect to your friends entire cattlog of personal BLE and see what happens. Try it out for fun sometimes painfully shocking results. You’re all going to love it. Be owned by the nothing. BLE happy.

Mark J Lorenz ,


Love this app! It gets the job done and has a little personality that’s fun.

Great tool for learning how Bluetooth LE works.

App Privacy

The developer, onceLabs LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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