In APK modding terms, "exclusive" usually indicates that a specific modding group (e.g., ReXdl, AcMarket, or a private Telegram channel) has repackaged the app with unique assets. It might include a custom splash screen, a dark theme forced on by default, or specific DNS settings pre-configured to bypass DPI (Deep Packet Inspection) in certain countries.
Modified APKs (MODs) are altered by third parties rather than the original developers at Psiphon Inc. . psiphon pro 169 mod unlimited speed apk exclusive