Deskreen vs Vivi

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.

Vivi brings classroom instruction, campus communications, and school safety into one platform designed for schools. Teachers can wirelessly share content to classroom displays and stream instruction to student devices. Schools can send targeted text and video announcements to displays, including live video on their internal network, and centrally manage digital signage with scheduled, location-targeted content. Emergency alerts can reach connected displays and staff devices; staff acknowledgment is mandatory and an incident record is auditable. The alert system can connect by API to existing emergency management and mass-notification systems. A classroom can use a Vivi Display Box per display or the software-only Vivi Display App on supported interactive panels. The per-classroom subscription includes hardware, software, updates, support, training, and warranty. Screen-mirroring traffic stays on the local network, while cloud features such as authentication, signage sync, and emergency functions need internet access. Vivi is available on Android, iOS, Linux, macOS, web, Windows, and as an extension. Pricing is on request, with a 30-day trial; there is no free plan.