Easy File Encrypt is a fast and free app which allows you to encrypt and decrypt files on the go! Set your own AES cypher password, and your file will be encrypted. Now no-one can decrypt the file without knowing the password! You can view the permalink page here, or download Easy File Encrypt from the Android Market here.
Easy Encrypted Journal is a fast and free journaling application which securely encrypts each entry with a separate password. You can view more on the permalink page for it here, or download it from the Android Market here.