AirBuddy
airbuddy.app
Mac app that shows AirPods and Bluetooth device battery and status with iPhone-style popups.
Guilherme Rambo
Brazilian indie Mac and iOS developer behind AirBuddy and VirtualBuddy
@_inside Florianópolis, Brazil57K followersMac & Desktop App MakersOpen Source MakersMobile App Makers
About Guilherme Rambo
Guilherme Rambo is a Mac and iOS developer and security researcher based in Florianópolis, Brazil. He is best known as the solo developer of AirBuddy, a Mac app that brings iPhone-style AirPods and Bluetooth device status to macOS, which he has been building since early 2019 and handles himself across design, development and marketing.
Alongside AirBuddy he has released a string of open-source and indie utilities, including VirtualBuddy, a popular macOS virtual machine app for Apple Silicon, and the unofficial WWDC app for macOS, plus smaller tools such as StatusBuddy, NoiseBuddy and DarkModeBuddy. He writes about reverse engineering, Apple internals and his projects on his blog, rambo.codes, and has published security research such as SiriSpy, an iOS bug that could let apps listen in on Siri conversations.
Rambo is also known in the Apple community for digging through unreleased Apple software and writing about his findings for 9to5Mac, and for co-hosting the Stacktrace podcast with John Sundell, which covers Apple platform development and news.
Products by Guilherme Rambo
VirtualBuddy
github.com
Open-source app for running macOS virtual machines on Apple Silicon Macs.
W
WWDC for macOS
wwdc.io
Unofficial open-source Mac app for watching current and past WWDC sessions.
StatusBuddy
github.com
Menu bar app that tracks Apple's developer and consumer system status.
- First product
- Launch / milestone
- Started 2019
- 2018Launch: Started co-hosting the Stacktrace podcast with John Sundell
- 2019First product: Launched AirBuddy for Mac; Stacktrace joined 9to5Mac
- 2022Launch: Published SiriSpy, research on an iOS bug that could let apps…
- 2025Launch: Released AirBuddy 3 with a Liquid Glass redesign and new…
Timeline
- 2018 — Started co-hosting the Stacktrace podcast with John Sundell.
- 2019 — Launched AirBuddy for Mac; Stacktrace joined 9to5Mac.
- 2022 — Published SiriSpy, research on an iOS bug that could let apps eavesdrop on Siri conversations.
- 2025 — Released AirBuddy 3 with a Liquid Glass redesign and new Magic Handoff feature.
How Guilherme builds
- Bring polished, platform-native touches to places Apple has not.
- Share what you learn from digging into system internals.
- Open-source useful tools so others can build on them.
- A single developer can own design, engineering and marketing.
Learn from Guilherme Rambo
[podcast]
Stacktrace
Podcast with John Sundell about Apple platform development and news.
[newsletter]
rambo.codes
Blog about reverse engineering, Apple internals and indie app development.
Guilherme Rambo FAQ
Who makes AirBuddy?
AirBuddy is made by Guilherme (Gui) Rambo, an independent developer in Florianópolis, Brazil, who works on it alone.
What is VirtualBuddy?
VirtualBuddy is Guilherme Rambo's open-source app for creating and running macOS virtual machines on Apple Silicon Macs.
What is Guilherme Rambo known for besides apps?
He is known for uncovering details in unreleased Apple software for 9to5Mac, security research, and co-hosting the Stacktrace podcast.
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