NoteSafe Encryptor is a note taking app that offers two levels of protection and security. Access to the app is restricted by a customizable 4-32 digit password, and each note is protected by its own customized encryption key.
When decrypting each note, no confirmation is granted. The encryption scheme guarantees that even if a hacker gains access to your phones disk memory, the notes will be unreadable without the key. Note that you must remember the key for each note, as it is not stored anywhere by the app.