Mark Zuckerberg says iMessage is less secure than WhatsApp
Meta and WhatsApp criticize Apple's backup and cross-platform messaging policies
Portable apps usually offer the same functionality as the regular versions of your favorite software, but without any installers involved. That means you can run them directly from a USB drive or a cloud folder synced across PCs.
Using end-to-end encrypted messaging services can make this data inaccessible to third parties and protection from bad actors. So the question is, which popular messaging apps use end-to-end encryption?