Line for Nokia is a Social & Communication software developed by LINE Corporation. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Line for Nokia:

Edit by Marydown: LINE - A new communications messenger used in over 230 Countries worldwide!
With LINE you can enjoy exchanging free messages with all your friends. Try it now!

LINE’s Key Features
◆ Easy, Fun and Convenient
Send messages, photos, videos, voice messages, as well as location info in an instant!

◆ Link your Smartphone - PC - Tablet
Use the smartphone version while on the MOVE, PC/MAC versions on your desktop, and a web-browser version for tablets. Stay in touch wherever life may take you!

◆ Lots of Stickers
Convey your emotions and make your chats more fun with a huge variety of fun stickers! There are 4 free sticker-sets waiting to be downloaded by you.

◆ New Windows UI - Metro
This version of LINE uses the new Metro UI system, unique to Windows Phones. Enjoy increased usability with the Panoramic View and the Application Bar features.

*As with any other apps, data transfer fees may apply if you are not using a Wifi network. We therefore recommend fixed-rate mobile price plans.

Thanks for reading, and we Hope you enjoy LINE!

Update - Ver. 2.4]
1. Added a list of official accounts
2. Added a function to receive sticker gifts and manage stickers
3. Other minor bug fixes and improvements to performance