Seald is described as 'One-click encryption tool that keeps unwanted eavesdroppers out of your conversations. Our goal is to protect the privacy of Internet users, regardless of their skills or the application on which they communicate' and is an app in the security & privacy category. There are more than 10 alternatives to Seald for a variety of platforms, including Windows, Linux, Mac, Android and Flathub apps. The best Seald alternative is VeraCrypt, which is both free and Open Source. Other great apps like Seald are Cryptomator, Hat.sh, ZenCrypt and AVGVSTO .