IntelTechniques Secure E2EE Comms Comparison Beta v. 0.2 January 2021                                      
                                                 
Messaging Confide Dust Jitsi iMessage Matrix/Element Session Signal Sudo Telegram Threema WhatsApp Wickr Wire Notes                    
E2EE Messaging (In-Network) YES YES YES YES OPTIONAL YES YES YES YES YES PARTIAL* YES YES *Whatsapp cloud (Google) backups are not E2EE                    
Country of Ownership USA USA USA USA UK Australia USA USA UAE Switzerland USA USA USA Many other cloud backups (Google, iCloud, etc) may not be E2EE                    
14-Eyes Association YES YES YES YES YES YES YES YES NO NO YES YES YES                      
Open Source NO NO YES NO YES YES YES NO YES PARTIAL NO PARTIAL YES                      
3rd-Party Metadata YES YES YES YES NO NO NO NO YES NO YES YES NO                      
3rd-Party Analytics YES YES YES YES NO NO NO NO YES NO YES YES NO                      
Funding Various Mark Cuban 8x8 Apple Matrix/Element Loki Signal Anonyome Labs Various Threema Facebook Various Wire                      
Registration Requirements None Email None Phone/Email None None Phone None Phone Payment Phone None Email                      
Device Contact Access Optional YES NO YES NO NO YES Optional YES NO Optional Optional NO                      
Message Control Across Devices YES YES YES NO YES NO NO YES YES NO YES YES YES                      
Ephemeral Messages YES YES YES NO NO YES YES YES YES YES YES YES YES                      
User ID Format Member ID Email Name Phone/Email Username Username Phone Phone Phone Username Phone Username Username                      
Free Version Available YES YES YES YES YES YES YES YES YES NO YES YES YES                      
Desktop/Browser Availability YES NO YES YES YES YES YES YES YES YES YES YES YES                      
Third-Party Audit YES NO NO NO NO In Progress YES Non-Public NO YES NO Non-Public YES                      
                                                 
Email CTemplar Discreet Mailbox Posteo Protonmail Tutanota Sudo                                  
E2EE (In-Network) YES YES YES YES YES YES YES                                  
E2EE (Non-Network) YES NO YES YES YES YES NO                                  
Country of Ownership Iceland Czech Republic Germany Germany Switzerland Germany USA                                  
14-Eyes Association NO NO YES YES NO YES YES                                  
Open Source YES NO YES YES YES YES NO                                  
3rd-Party Metadata NO NO YES NO NO NO NO                                  
3rd-Party Analytics NO NO YES NO NO NO NO                                  
Funding Self Funded Self Funded Self Funded Self Funded Horizon Self Funded Anonyome Labs                                  
Registration Requirements None None Payment Payment None None None                                  
Free Tier Daily Email Limit 200 100 10 (Trial) YES 150 YES NO                                  
Custom Domain YES YES YES NO YES YES NO                                  
Wildcards YES NO YES NO YES YES NO                                  
2FA YES YES YES YES YES YES YES                                  
Desktop/Browser Availability YES YES YES YES YES YES YES                                  
Third-Party Audit NO NO NO YES YES NO Non-Public                                  
                                                 
Voice FaceTime Jitsi Matrix/Element Signal Sudo Telegram Threema WhatsApp Wickr Wire                            
E2EE Calls (In-Network) YES YES YES YES YES YES YES YES YES YES                            
Country of Ownership USA USA UK USA USA UAE Switzerland USA USA USA                            
14-Eyes Association YES YES YES YES YES NO NO YES YES YES                            
Open Source NO YES YES YES NO YES PARTIAL NO PARTIAL YES                            
3rd-Party Metadata YES YES NO NO NO YES NO YES YES NO                            
3rd-Party Analytics YES YES NO NO NO YES NO YES YES NO                            
Funding Apple 8x8 Matrix.org Signal Anonyome Labs Various Threema GmbH Facebook Various Wire                            
Registration Requirements Phone/Email None None Phone None Phone Payment Phone None Email                            
Device Contact Access YES NO NO YES Optional YES NO Optional Optional NO                            
Max # of Users on Call (Base Tier) 32 75 1:1 5 5 1:1 1:1 8 1:1 4                            
User ID Format Phone/Email Name Username Phone Phone Phone Username Phone Username Username                            
Desktop/Browser Availability YES YES YES YES NO YES NO (Voice) YES YES YES                            
Third-Party Audit NO NO NO YES Non-Public NO YES NO Non-Public YES                            
                                                 
Video FaceTime Jitsi Matrix/Element Signal Sudo Telegram Threema WhatsApp Wickr Wire Zoom                          
E2EE Video (In-Network) YES YES YES YES YES YES YES YES YES YES PARTIAL                          
Country of Ownership USA USA UK USA USA UAE Switzerland USA USA USA USA                          
14-Eyes Association YES YES YES YES YES NO NO YES YES YES YES                          
Open Source NO YES YES YES NO YES PARTIAL NO PARTIAL YES NO                          
3rd-Party Metadata YES YES NO NO NO YES NO YES YES NO YES                          
3rd-Party Analytics YES YES NO NO NO YES NO YES YES NO YES                          
Funding Apple 8x8 Matrix.org Signal Anonyome Labs Various Threema GmbH Facebook Various Wire Various                          
Registration Requirements Phone/Email None None Phone None Phone Payment Phone None Email Email                          
Device Contact Access YES NO NO YES Optional YES NO Optional Optional NO Optional                          
Max # of Users on Call (Base Tier) 32 75 1:1 5 5 1:1 1:1 8 1:1 4 100                          
User ID Format Phone/Email Name Username Phone Phone Phone Username Phone Username Username Email                          
Desktop/Browser Availability YES YES YES YES NO YES NO (Video) YES YES YES YES                          
Third-Party Audit NO NO NO YES Non-Public NO YES NO Non-Public YES NO                          
                                                 
Contributors: Gustov, Up, X, MB