You should have disclosed that groupsapp is your app. How's it better than signal in terms of security other than not requiring phone number? How is the E2EE implemented? Is it open source?
Indeed, I disclose here that I am the developer. It's not better or worse, it's different. You can see a list of features in the link, that should be better than me writing them here (main security pluses are: doesn't read from phone book, email can be masked, sent messages can be deleted even after having been read, and there is a self-destruct mechanism)
E2EE is implemented with RSA+AES. iOS uses keychain and CommonCrypto. Android uses a modified BouncyCastles. I'll probably open source the code once I've figured out the licensing details
E2EE is implemented with RSA+AES. iOS uses keychain and CommonCrypto. Android uses a modified BouncyCastles. I'll probably open source the code once I've figured out the licensing details