Much has been said about email security but hardly anything about SMS security. Considering the amount of sensitive SMS sent on a daily base that is pretty surprising.
As the recent stories with manipulated mobiles (just Google it) have shown it is very possible to intercept SMS from other users.

Many enterprises are aware that SMS have no better security than a plain postcard thus prohibiting the sending of sensitive information via SMS without encrypting them.

With its second version of Aloaha SecureSMS Aloaha is now offering its secure SMS technology to a broader audience to increase the awareness to protect any communication against interception.

The basic Version of AloahaSMS will be free of charge so that anybody will be able to send encrypted SMS. For additional security Users will be able to purchase 2048 RSA Key Material from Aloaha.
In the professional Version Users can use their own Key Material.