Instead of letting your unused data go to waste, telecom company T World is giving users the ability to gift it with the 'LTE Data Gift' system. The Korean network created the gifting feature in order to allow customers on the same network to share their leftover data. Currently, those on the T World network can give up to two gigabytes of data away.
Traditionally, data that you buy on a plan expires after 30 days. However, donated data is given a fresh lease on life so that the recipient has time to use it. As a result, data that you paid for doesn't go to waste and you can help someone else out with a little Internet access.