Zygna’s Bubble Safari picked up 9.5 million additional monthly active users to take the No. 1 spot on our list of top growing Facebook apps by MAU this week.

Titles on our list gained the most MAU of any apps on the platform, growing from between 500,000 and 9.5 million MAU, based on our AppData tracking service.

Top Gainers This Week

Name MAU Gain    Gain % 1.  Bubble Safari 13,500,000 +9,500,000    + 238% 2.  Socialcam 76,100,000 +6,200,000    + 9% 3.  Zynga Bingo 9,700,000 +1,900,000    + 24% 4.  Lost Bubble 5,100,000 +1,800,000    + 55% 5.  TripAdvisor™ 20,100,000 +1,500,000    + 8% 6.  Bubble Blitz 4,200,000 +1,100,000    + 35% 7.  Scribd 24,900,000 +1,000,000    + 4% 8.  Truth Game 6,700,000 +900,000    + 16% 9.  Candy Crush Saga 11,300,000 +800,000    + 8% 10.  Birthday Calendar 2012      ’ 4,100,000 +700,000    + 24% 11.  Instagram 18,700,000 +700,000    + 4% 12.  Photo Love 11,100,000 +700,000    + 7% 13.  Spotify 21,800,000 +700,000    + 3% 14.  Buggle 4,900,000 +600,000    + 14% 15.  Song Pop 790,000 +600,000    + 316% 16.  Terra 6,300,000 +600,000    + 11% 17.  MyCalendar – Birthdays 33,400,000 +600,000    + 2% 18.  Are YOU Interested? 7,200,000 +600,000    + 9% 19.  Glassdoor 1,100,000 +530,000    + 93% 20.  DoAlbums 2,100,000 +500,000    + 40%

Bubble Safari’s big gain last week could be the result of an in-game promotion that sent coins to users’ friends who weren’t already playing the game. The canvas game more than tripled its MAU in the past seven days. Similar arcade games Lost Bubble and Bubble Blitz came in at No. 4 and No. 6, respectively.

Socialcam grew a bit slower than it has in past weeks, but the video sharing app gained another 6.2 million MAU to take the No. 2 spot on our list. TripAdvisor picked up 1.5 million MAU, bringing the web integration to a new high of 20.1 million MAU after a steady decline over the course of May.

Fresh Planet’s Song Pop is a new app on our list gaining quickly since it released updated mobile versions last week. The name-that-tune game that lets users challenge their friends or random opponents. Similar to Words With Friends, the game syncs across iOS, Android and Facebook canvas, so users can start a game on an iPhone, for instance, but take their next turn on Facebook.

All data in this post comes from our traffic tracking service, AppData. Stay tuned for our look at the top weekly gainers by daily active users on Wednesday, and the top emerging apps on Friday.