Question: what are most used apps?
Answer: WhatsApp (+2)
2. Facebook (-1) 5.478 billion downloads. ... 
3. Facebook Messenger (-1) 4.756 billion downloads. ... 
Instagram (=) 2.796 billion downloads. ... 
Subway Surfers (+1)
6. Facebook Lite (+6) 1.492 billion downloads. ... 
SHAREit (+4)
Microsoft Excel (New) 1.284 billion downloads.