
After Messenger, Viber was the only other messaging app to claim ten or more countries. It is very popular in Eastern Europe and is the most used app in Belarus, Moldova and Ukraine. Line is the most popular app in Japan, while WeChat and Telegram also top the charts in multiple countries.
BlackBerry Messenger (BBM) is still very popular in Indonesia, where it is installed on 87.5 percent of all Android devices, compared to 0.42 percent in the US and only slightly more in Australia and the UK. SimilarWeb, which found that messaging apps were the top app overall in all markets analysed, has produced an interactive map giving a country-by-country breakdown for messaging apps.