PrivSMS is an Android messaging application. This application enable Android users to send messages in secure SMS system. Secure SMS is encryption based messaging service, where messages are sent and received in an encrypted format.

In order to access sent/received secure SMS, the application must installed reside in both sender and receiver mobile phones that used to send and receive messages. PrivateSMS is similar to secure SMS, but unlike secure SMS, messages are sent without encryption however inbox is protected with a password to open.

nUnlock is the coolest homescreen ever for your Nokia. See everything you need at first glance: easy-to-read time display, indicators of your phone status. Then, unlock your phone with one smooth slide. background image or font color. Completely configurable!
After the keypad displays the specified screen saver on your screen. To unlock deduct the arrow to the right with Slide to Unlock mode.

nUnLock is yet another iPhone unlock screen emulator. Please not that its not a full iPhone UI emulator like MyPhone, but just simulates the unlock screen.

QR Code is a type of matrix code or two dimensional barcode that is created and developed by Wave Denzo which at that time was a division of Denso Corporation, a Japanese company that is still part of the Toyota group. QR stands for here is a quick response, an expectation from the manufacturer that this code will quickly be decoded. Initially, the QR Code is used to record vehicle spare parts in the company, but is now increasingly widespread use anything else after the specification of QR Code was released to the public

Different with barcode which only one side that contains only data, the QR Code has two sides that contain data, and this makes the QR Code contains more information than bar codes.