SoundBuddy is a utility for Apple silicon Macs running macOS 14 or later. It lives in the menu bar and is designed to keep a user's selected microphone active when headphones or other audio devices connect. Without the app, macOS may switch the microphone input automatically; SoundBuddy preserves the user's chosen microphone while the app is open, with a fallback device taking over if the preferred microphone disconnects. The app is distributed as a one-time purchase for one Mac, with the installer and license delivered by email after purchase. The main workflow is straightforward: buy the app, open it from the menu bar, select a microphone, and switch on Input Lock. Additional features include optional keyboard sounds with six sound packs, a quiet popup that appears when a device connects, and battery display for devices that expose that information. The keyboard sound samples are synthesized, and nothing plays until the feature is switched on. The app keeps device controls and preferences on the Mac, and no account is required. SoundBuddy is Developer ID signed and notarized and requires an internet connection for license checks. Some functions are not verified or not built: active-call switching is not fully verified, so users should check their call app's own input settings; clean-Mac installation, Intel support, proximity automation, ear detection, and Now Playing integration are not included or confirmed. The website also notes that the page cannot connect to user devices and that sample devices shown in its interface are simulations.