| Feature | AirServer (Activated) | Free Alternatives | Built-in (Microsoft/Apple) | | :--- | :--- | :--- | :--- | | | Yes (full HD) | Limited or watermarked | No (Apple TV only) | | Google Cast | Yes | Rare | No | | Miracast | Yes | Limited | Yes (Windows only) | | Multiple simultaneous connections | Up to 8 devices | 1 device | 1 device | | Recording & streaming | Yes (record mirrored sessions) | No | No | | Price | One-time fee (~$20) | Free (with catches) | Free (but platform-locked) |

An is a unique alphanumeric code required to unlock the full version of the AirServer software, a popular screen-mirroring receiver for Mac, PC, and Xbox.

Without an , the software operates in a limited trial mode. Typically, the trial lasts 30 days or restricts session lengths (e.g., disconnecting after 10 minutes). An activation key unlocks the full version, removing time limits, watermarks, and connection restrictions.

This article is for informational purposes only. AirServer is a trademark of App Dynamic ehf. All product names, logos, and brands are property of their respective owners. We do not condone or provide methods for software piracy.