Deskreen vs ViewSonic AirSync

Deskreen is a desktop app that mirrors a computer screen or one application window to a device’s browser over Wi-Fi. With a Virtual Display Adapter, a browser-equipped device can serve as a second screen. It can work off-grid over local Wi-Fi without internet access, and Flip Screen Mode horizontally flips the image in a tablet or smartphone browser for teleprompter use. During sharing, users can change picture quality, with automatic quality changes also supported. Community is free, open source under AGPLv3, and supports one connected device. Pro costs $24.99 a year and supports up to five connected devices; Teams costs $139.99 a year and supports unlimited devices, with three seats included for teams of up to 20 members. Extra Teams seats cost $10 each. Custom terms are available for enterprise, education, and large organizations. Deskreen says it uses end-to-end encryption; enhanced connection security and VPN support are listed for Pro, Teams, and Custom. Its listed desktop systems are Windows, Linux, and macOS.

ViewSonic AirSync mirrors a device screen wirelessly to ViewSonic displays through a sender app or web browser. It supports AirPlay, Google Cast, Miracast, and AirSync Sender screen sharing. Hosts can moderate requests, while multiple presenters can share screens at once; capacity varies by IFP model from four to six. Display Grouping can broadcast one display to as many as 10 ViewSonic screens on the same local network segment. AirSync supports LAN and internet connections, but Web Sender is limited to internet connections and lacks touch feedback, incoming IFP screens, pen strokes, and high-quality sharing. The Sender app offers touchback from compatible ViewBoard displays on Windows, macOS, Android, and iPad. ViewSonic describes end-to-end encryption and centralized control through ViewSonic Manager. AirSync is intended for ViewSonic displays; specified older CDE and IFP models continue with myViewBoard Display and vCast. Sessions last 180 minutes by default and can be extended twice, up to nine hours. Pricing starts at $62, and a free plan is listed.