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Screenshots

  • LightBlue® screenshot 1
  • LightBlue® screenshot 2
  • LightBlue® screenshot 3
  • LightBlue® screenshot 4

About LightBlue®

LightBlue® by Punch Through® Your ultimate BLE debugging and development toolkit. Trusted by BLE developers and engineers since 2012 to scan, inspect, and troubleshoot Bluetooth Low Energy devices with precision. Scan For Peripherals  Discover, connect, and interact with nearby BLE devices. Quickly view advertising peripherals, sort by signal strength (RSSI), and connect with a single tap. Once connected, explore the device's advertisement data, services, and characteristics. Isolate SDK Issues  Simplify debugging by pinpointing issues in your BLE SDKs. LightBlue lets you isolate your app's business logic and focus on core tasks like connecting, scanning, reading, writing, and receiving notifications, built on years of BLE development experience and platform best practices. Mimic Your Devices  Prototype your application by creating virtual BLE peripherals. Build a profile from scratch or clone an advertising peripheral to mimic your product's functionality, even before your own firmware is ready. Key features: - Scan and discover BLE peripherals nearby - Browse services and characteristics in detail - Read, write, and subscribe to notifications and indications - Send data from notifications to AWS IoT or Adafruit IO via Cloud Connect - Write to characteristics in Hex, Octal, Binary, Decimal, or ASCII - Clone peripheral profiles or build your own from scratch - Advertise as a custom peripheral to simulate your device - Thoroughly log and share BLE events - Available on iPhone, iPad, Mac, and Android LightBlue started in 2012 as an internal tool. Punch Through built it to test and debug BLE devices while working on client projects. It worked well, so we shared it with the community. We've kept it free ever since. Today, LightBlue is used by solo developers and engineering teams alike, including inside some of the world's most respected tech and device companies.

Ratings & reviews

4.3

942 ratings

5 ★ 75% 4 ★ 8% 3 ★ 4% 2 ★ 2% 1 ★ 11%

What’s new

Version 5.5.1 · Updated September 17, 2026

The app is now fully compatible with iOS 27. Other changes from 5.5.0: - Dark mode support is here! - The app UI now fully embraces Liquid Glass. - You can now mark a peripheral as a favorite and filter on it while scanning! - Added an option in the overflow menu to reconnect from the main peripheral screen when the peripheral becomes disconnected. Thank you for using LightBlue®!

App privacy

The developer, Punch Through, reported these privacy practices to Apple.

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Contact Info: Email Address
  • Usage Data: Product Interaction
  • Diagnostics: Crash Data

Used for: Developer’s Advertising or Marketing, Analytics, App Functionality

Alternatives to LightBlue®

Looking for apps like LightBlue®? Here are 6 similar apps on the App Store. The highest rated is Device Tracker (4.7/5), and all 6 are free to download.

LightBlue® vs. alternatives
App Rating Price Last updated
LightBlue® 4.3 / 5 (942 ratings) Free September 17, 2026
nRF Connect for Mobile 4.5 / 5 (465) Free Jun 17, 2026
Wunderfind: Find Lost Device 4.5 / 5 (117,083) Free Mar 5, 2025
Find my Bluetooth Device App 4.4 / 5 (4,637) Free Sep 16, 2026
Network Analyzer: WiFi Scan 4.6 / 5 (6,821) Free Sep 13, 2026
Bluetooth for Arduino 3.4 / 5 (42) Free Aug 14, 2026
Device Tracker 4.7 / 5 (36,983) Free Aug 30, 2026