Seems like there is a "password" required to encrypt/decrypt but the app's descriptions says: > - No Sign Up / Log In / Usernames / Passwords. So I'm guessing

Seems like there is a "password" required to encrypt/decrypt but the app's descriptions says: > - No Sign Up / Log In / Usernames / Passwords. So I'm guessing this password is stored server-side and the passwords are associated to device ids. Seems like it would read your contacts and then send them to their servers too, not a fan of doing that personally. I'm not sure why the app mentions encryption/security as it seems far from being the main point of the app.