BlyndSyde

Hide your screen in public

Only for Mac

Free · In‑App Purchases

Mac

Hide your screen from prying eyes - even from people snooping directly over your shoulder! BlyndSyde helps keep your Mac screen private when you work in public places such as coffee shops, trains, airports, libraries, shared offices, or anywhere someone might glance over your shoulder. With one global hotkey, BlyndSyde turns your screen into colourful visual noise. To people nearby, your display becomes hard to read. To you, when wearing compatible deep-red blue/green-blocking glasses, the screen remains readable. Use BlyndSyde when you need a quick privacy layer for sensitive work, messages, documents, code, finance, business material, or anything else you would rather not expose in public. Features: • Toggle privacy mode instantly with a global keyboard shortcut • Protect the full screen or use a floating privacy window • Designed for use with compatible deep-red lenses • Works locally on your Mac • No login • No analytics • No telemetry • No tracking Important: BlyndSyde requires compatible deep-red lenses. Amber, yellow, lighter red, or standard blue-light glasses will not work reliably. Screen Recording permission is required so BlyndSyde can apply its privacy effect. DRM-protected video and true fullscreen windows cannot be covered directly; use Zoom or Fill mode where needed. BlyndSyde is not a replacement for good security practice, but it adds a practical privacy shield for real-world public working. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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The developer, Prismia, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Prismia Limited
    Size
    • 3.4 MB
    Category
    • Utilities
    Compatibility
    Requires macOS 14.0 or later.
    • Mac
      Requires macOS 14.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Prismia Ltd.
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More