Kleopatra - Kleopatra is a certificate manager and GUI for GnuPG.
WhatsRemoved+ - WhatsRemoved+ is a mobile tool developed and published by Development Color for Android devices only.
YAATA - YAATA app offers features that let you send multimedia files such as images, videos, audio, and GIFs, etc.
NCleaner app - Notification Blocker, Cleaner, and Heads-up Off app is a free-to-use Android tool created and published by SoloVPN and NCleaner.
Enigmail - Security extension to Mozilla Thunderbird and SeaMonkey
Notification History Pro - Notification History Pro is a pro version of the World’s largest Notification backup and recovery app that introduces lots of new tools and features.