Do you want that your SMS and emails can be read only from the person you send them?
Do you want that emails and SMS received from lover, girlfriend/boyfriend can't be read from your Iphone by anyone else?
Use iSMSCrypt to protect the real message to unauthorized eyes, share a keyword with someone and use it to protect SMS and emails you exchange with him/her.
Send email and sms directly from the application.
Thank to URL support open received message from Safari or from Email to automatically fill encrypted message field.
Support copy&paste functions