Does Plain have a mobile or desktop app?

No. Plain has no native mobile app and no native desktop app. It is a web application that runs in your browser at app.plain.com, on desktop and on mobile. There is no macOS app, no Electron wrapper and no App Store listing, so there is nothing to install. Open any modern browser, such as Chrome, Safari, Firefox or Arc, and go to app.plain.com. On your phone, use your mobile browser.

Pin Plain to your Dock

For a more app-like experience on a Mac, use your browser's Add to Dock or Create Shortcut feature to open Plain in a standalone window.

• Chrome: go to app.plain.com, open the three-dot menu, choose Save and share, then Add to Dock.
• Arc: go to app.plain.com and use Arc Spaces to keep it pinned.
• Safari: go to app.plain.com, open the File menu, then choose Add to Dock.