LightBlue® Explorer can connect you to all of your devices that use Bluetooth Low Energy (also known as Bluetooth Smart, or Bluetooth Light).

LightBlue® Explorer has two modes, central and peripheral. In central mode, you can scan for and connect to all BLE devices around you. Once connected, you have a detailed view of all the device's profiles, from which you can read and write to characteristics and subscribe to notifications.

To use peripheral mode, tap the blue circle next to one of the profiles listed under "Virtual Peripherals." When the blue checkmark appears, your iOS device will begin advertising as that particular BLE peripheral. LightBlue® Explorer allows you to customize the services and characteristics of any virtual peripheral profile. Tap the "+" in the top right corner of the home screen to add new virtual peripherals. You can also clone any peripheral you connect to in central mode and save that profile to your list of virtual peripherals.

Full support of read, write, and notify is included. You can view the signal strength (RSSI) to get an idea of how close you are to the peripheral.

The log feature allows you to keep track of all significant BLE events that occur while using the app (e.g., device discovery, connection, reading, writing).

Use LightBlue® Explorer to test your new BLE Heart Rate Monitor, temperature sensor, TI CC2540 Keyfob, Nordic uBlue, Panasonic PAN1720, etc. LightBlue® Explorer is also ideal for developers wanting to test the firmware of their own BLE peripherals.

Key Features:
- Scan for any peripherals
- Grab basic device info (UUID, RSSI )
- Browse Characteristics and Services
- Register for Notifications and Indications
- Send Data from Notifications and Indications to AWS IoT or Adafruit IO
- Read Characteristics
- Write to Characteristics in Hex, Oct, Bin, Decimal or Ascii
- Clone peripheral profiles
- Choose from an array of common preconfigured peripheral profiles
- Advertise as a peripheral using custom profiles
- Thoroughly log BLE events

This app will not work on iPhone4, iPhone3GS, iPhone3G or iPod Touches before the 5th generation, or any other iOS device without built-in Bluetooth Low Energy support.

What’s New

Version 2.7.1

Check out Punch Through's blog in the Info->Announcements section of the app! We cover a range of topics, from IoT news to in-depth BLE breakdowns.

Ratings and Reviews

4.4 out of 5
40 Ratings

40 Ratings

JulesA5 ,

Found my Fitbit One

Lost my Fitbit One on a very long autumn (leafy) park walk. After 4 days I was able to do the same walk again with LightBlue running on my phone. After about 1.5 miles of walking at our normal fast pace ‘One’ popped up in the list of Peripherals Nearby and (astonished) we started the search, kicking through the leaves and using the app’s signal strength indicator to home in on the device. It’s not pin-point accurate so it took a while to narrow down the search area, but we did and unbelievably we found the One, dirty and hidden in leaves. Great app that worked for me.

Zarkanoid ,

Found my Fitbit!

Very good app! Fitbit was lost in a field. It took about 1h to find it but I got there. The measures were not as precise as I could have hoped though. At 40 meters I got 0 or 1 bar out of 5. And it’s only when I was at 3m that I got 2 bars and then it went quickly to 5 bars out of 5. Consequence is that you walk around in various directions and you don’t seem to get any closer or further. So there might be something to improve here. But I don’t complain, I’m amazed that it could track it from 40m away in the first place! Would recommend the app for sure!

DaisieW ,

Found my Fitbit

Found my Fitbit, knew it was in the house but after wasting time on several other apps that just gave same message and ads anywhere, this was the only one that located it within a room, and showed a steady increased signal until exact location found.


Punch Through Design LLC
26 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 4+
© Punch Through Design LLC


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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