Zyncc Crypto is a secure web application that helps you transfer sensitive messages.
When you send a sensitive message (for example a password) in an e-mail, you risk that it is read by someone else. Since e-mail is often sent unencrypted, anyone that's between you and the recipient can read your message.
Furthermore, e-mail is usually stored on disk in multiple locations (also think about backups), where it must be guarded indefinitely. Wouldn't it be nice if this information would somehow destroy itself after usage?
Zyncc Crypto encrypts your sensitive message and stores it in a database. The key that is needed to decrypt the message only works once, and is not stored anywhere. It is only given to you, so you can send it to the recipient.
If the key is somehow intercepted and used by someone else, you can find out in your next conversation with the recipient ('Hey, did you receive the password for X?' - 'No?' - 'Oh no!'). This works best when you use the notification e-mail feature, so you know when to call the recipient.
By the way, sensitive messages don't just linger in the database. They are removed when they are decrypted, or when their 'valid until' time is expired. No loose ends.