ZapFast: A fast, native WhatsApp client in Rust and egui

ZapFast is a lightweight WhatsApp client written in Rust with egui and fastframe, available for Linux, macOS, and Windows. It has a fast startup time and low memory usage, using around 200 MB of RAM when idle. The app has a native interface and supports multiple languages, including English, Chinese, French, German, and others. It uses a companion device link to WhatsApp and has native notifications on Linux, macOS, and Windows. ZapFast is open-source and has a sibling project called Spotifast, a native Spotify client.