Is there a way to encrypt emailed information sent from Android or iOS?

view full story

http://stackoverflow.com – A friend of mine wants an app made in which users fill out information on their Android or iPhone (just basic stuff like name, contact information, etc), and that information is sent to an email address. He also wants the emailed encrypted so that the vital information isn't somehow abused before it reaches the destination email. Is there a specific command in Android on iOS programming that will encrypt details before sending, or is this automatically encrypted? (HowTos)