You can add bookmarks that sync automatically across all your devices. A minimum of a free account is required to add bookmarks, with different limits based on your subscription level:
Previously saved locations now appear under the Locations tab. The Bookmarks widget is located on the left side of the screen, or you can enable it from the Widgets menu in the bottom toolbar.
You can customize your screen by toggling and reordering widgets such as Most Tracked Flights, Last Clicked Flights, or Statistics.
Open the Bookmarks widget by swiping down below the search field at the top of the screen. Here, you can bookmark aircraft, flights, airports, or locations for quick access.
On the web, hover and click the trash icon or filled star to manage bookmarks. In the app, tap Edit, select the item, then tap Done to remove or reorder bookmarks.
"You can add bookmarks that sync automatically across all your devices."
Author's summary: Bookmarking on Flightradar24 is simple and flexible, allowing users to save aircraft, flights, airports, and map views synced across devices with limits based on account type.