KeeperChat Encrypted Messenger vs Copiosus

KeeperChat - The leading secure messaging app. Why you need KeeperChat: • Because you deserve privacy. • Because you want to password protect your messages. • Because people are nosey. • Because you need a secure way to share your credit card and password information. • Because it does not store photos in your phone’s main gallery. • Because mistakes happen. • Because photos leak. • Because you changed your mind. • Because you sent something you regret. • Because you text the wrong thing to the wrong person. • Because you want to know when people screenshot your chat. • Because you want to pick up the conversation on your tablet. • Because it is easy to use. • Because all your friends will be on it. Need your private photos and messages to disappear? We’ve got you covered with our self-destruct timer. Sent something you regret? Retract your message without a trace at any time. Need to blur your screen from prying eyes? Our new stealth mode allows you to blur your screen for maximum privacy. Have you lost your phone and therefore all your messages? Login to the app on a new device and restore your conversations. Messaging apps are so easy to use we don’t often think twice about texting personal information to those we trust; however, the products we use to connect to each other were not built to handle this information securely. Existing messaging apps lack our zero-knowledge security architecture and necessary security protocols. KeeperChat enables you to chat with peace of mind knowing you are in control of the content you share, and who you share it with. Easily invite your friends, family, and colleagues to experience the future of secure messaging. Take control with KeeperChat. Product Benefits: • Private vault for messages, photos and videos • Private, encrypted media gallery (nothing is saved on device’s camera roll) • Biometric login and self-destruct protection for vault • Message retraction and self-destruct timer • Two-factor authentication • End-to-end message encryption • Unlimited devices and sync • Secure cloud backup • Private group chats • Auto-logout timer • Customizable messages with themes and animated stickers • Zero-knowledge, encrypted security architecture • Built-in Keeper password vault integration Developed by Keeper Security, the creator of Keeper, the world's most trusted password manager and digital vault. Terms and Conditions. Privacy Policy: https://keepersecurity.com/privacypolicy.html?t=chat Terms of Use: https://keepersecurity.com/termsofuse.html?t=chat

Copiosus is just another P2P chat application. This software is provided "as is" without warranties or conditions of any kind, either expressed or implied. Please download this app only if: - You care about security. - You don't care about a beautiful UI. - You like to try apps other than WhatsApp and Signal. Features: - Send messages. - Send files and images. - Block users. - Two factor authentication (MFA) - End-to-end encryption using an asymmetric key. - Improved end-to-end security using a security key as a second factor which encrypts data using a shared symmetric key. - Minimal privileges required. - No in app purchases. - No ads. How does end-to-end encryption work in this app: 1. Whenever you send a message M a random symmetric key R is generated 2. R is encrypted using the asymmetric (public) key of the other user resulting in A 3. M is encrypted with R resulting in N 4. If security key S is set: N is encrypted by S 5. N and A is sent to the destination