What facebook apps is the most popular right now?

[Alvin]

Name a few?

[Sky..]

Here are top 25 apps according to jan 2013
.
Name
MAU(monthly active users)
.
1. Instagram
44,808,894
.
2. FarmVille 2
43,500,000
.
3. TripAdvisorâ„¢
34,293,922
.
4. Texas HoldEm Poker
34,000,000
.
5. Microsoft Live
26,000,000
.
6. I want to add your birthday
25,500,000
.
7. Spotify
24,600,000
.
8. Candy Crush Saga
23,500,000
.
9. Bing
23,300,000
.
10. schoolFeed
23,100,000
.
11. I want to add your birthday
22,800,000
.
12. Yahoo! Social Bar
22,300,000
.
13. Diamond Dash
21,600,000
.
14. Samsung Mobile
21,500,000
.
15. ChefVille
20,900,000
.
16. Pinterest
20,500,000
.
17. Bubble Safari
19,400,000
.
18. Bubble Safari Ocean
19,100,000
.
19. Scribd
17,800,000
.
20. Dragon City
17,600,000
.
21. Skype
17,200,000
.
22. Bubble Witch Saga
16,700,000
.
23. Nokia
16,700,000
.
24. CityVille 2
15,900,000
.
25. Static Iframe Tab
15,400,000