Plae is a macOS menu bar application designed for translating text directly on your device without requiring an internet connection. The app allows users to hit a shortcut from any application and get translation results privately, ensuring nothing leaves the machine.

Key features include the ability to translate text using multiple engines: Apple Translation (19 languages, native-quality results, translates in under a second), Apple Intelligence (more languages, better with slang and nuance), and a built-in AI model powered by Google's TranslateGemma (55 languages, downloadable models). The app offers full-screen presentation mode to display translations readable from across the room, translation history saving the last 20 translations with starring capability, global keyboard shortcuts (Cmd+Shift+T), and offline functionality after initial setup.

The app works by running translation engines entirely on-device, with text never leaving the computer. Users can choose between different translation engines based on their macOS setup and language needs, with options ranging from the built-in Apple Translation to more advanced AI models that handle additional languages and contextual understanding.

Benefits include complete privacy with zero data collection, no analytics or telemetry, and no accounts required. Use cases include multilingual couples and families maintaining conversations, international teams double-checking messages, shared spaces like hotel front desks, expats and language learners adapting to new languages, and situations requiring quick, private translations.

The target audience includes macOS users who need fast, private translation capabilities, particularly those in multilingual environments or requiring offline functionality. The app requires macOS Sequoia or later and is available as a one-time purchase with a free 7-day trial.