A: All account-specific data, including friends lists, rankings, achievements, statistics, titles, and unlockable rewards, will be tracked separately for each region's servers, and will not carry over between them.
Forthe second, user-based analysis, a number ofapproaches have beentaken, including ones based onprofileinformation, useractions, and listsof the user's friends or contacts.
Although NHN Japan's self-developed apps alone will be released at first, NHN Japan has made it clear that it plans to increase the availability of apps developed by external business partners by opening its API and offering developers access to LINE's functions includingfriendslists, messaging and payment.