: It was widely known for its ability to synchronize data between mobile devices and a desktop companion app (Windows/Mac). Later versions introduced Gmail synchronization for easier backups.

: Users could initiate actions directly from the card, such as clicking a phone number to call, an email address to send a message, or a URL to open a browser. Historical Context & Availability

: Community-developed tools like the SpbWalletExport on GitHub can help extract data from older .swl files.