We’ve just started publishing leaderboards of the Facebook applications with the most daily active users over on AppData. Just as we have been doing posts looking at which apps have gained the most monthly active users each week, we’re going to start doing posts looking at which apps have gained the most daily active users over the course of each week.

Understanding the Numbers

Before we get in to our first daily actives post, a more thorough explanation is needed for what it means versus monthly actives. Growth in monthly actives shows the longer-term health of an app. Even the fastest-growing ones, like Zynga’s FarmVille and Café World, and CrowdStar’s Happy Aquarium, take multiple weeks to get to tens of millions of users. You have to zoom out to the monthly measure to really see these trends unfolding. By looking at weekly changes to this number, you can get a sense for where the app is headed. Also, of course, some apps don’t actually want or need a lot of daily actives to be successful.

But daily actives is generally a better metric of engagement, and so monetization. The daily active rate can vary widely based on users getting tired of some features, or getting excited about new ones, or just being more exposed to an app through Facebook advertising or cross-promotion from other apps. In other words, the changes in daily active users may fluctuate, even if an apps month-to-month trajectory is relatively smooth.

The daily actives metric matters, especially for games that offer virtual goods, because people who play every day are more likely to be spending money on virtual items – like crops in a virtual farming game, fish in a virtual aquarium game, etc. – whereas those that check out the game once or twice are much less likely to monetize. Having a lot of monthly actives but relatively few daily actives may mean the app isn’t getting many users to pay. On this last point, you can get a sense for how well an app is monetizing by also looking at its ratio of daily active users to monthly active users (DAU/MAU), which is a decent signal of an application’s retention of new users.

So monthly actives shows the overall arc of an app, daily actives shows how engaging it is, and the sticky factor shows you how well the app is maintaining if not growing its user base.

Now, let’s have a look at which apps have gained the most daily actives in the past week.

	Name	DAU	Gain	Gain, %
1.	FishVille	5,153,768	+4,766,740	+92.49
2.	FarmVille	26,677,865	+1,819,073	+6.82
3.	Happy Pets	816,071	+805,762	+98.74
4.	Café World	9,887,995	+714,276	+7.22
5.	friend.ly	805,887	+587,676	+72.92
6.	Happy Aquarium	7,719,213	+559,529	+7.25
7.	Facebook for iPhone	8,624,108	+308,881	+3.58
8.	Translations	308,755	+308,691	+99.98
9.	Daily Sex Chance	257,713	+257,712	+100.00
10.	Snowball Fight	227,801	+187,145	+82.15
11.	Mobile	4,908,381	+170,467	+3.47
12.	Island Paradise	1,835,362	+165,499	+9.02
13.	Movies	548,549	+156,337	+28.50
14.	Diva Life	249,154	+147,639	+59.26
15.	Honesty Box	389,144	+122,011	+31.35
16.	Daily Horoscope	539,206	+118,242	+21.93
17.	Know-It-All Trivia	168,643	+112,379	+66.64
18.	Fish Life	487,029	+111,321	+22.86
19.	Fish World	2,382,371	+93,054	+3.91
20.	Bueno & Demonio ?	88,748	+87,854	+98.99

As you can see, most of the leading apps are games. Some of the top gainers are, unsurprisingly, games that have just launched — FishVille and Happy Pets have only been out for a week or two. Still, in both cases, you can see the games sticky factors dropping as they grow larger. FishVille currently has a sticky factor of 45% while Happy Pets has a sticky factor of 53%. In other words, the more time passes, relatively fewer people are playing the game every day.

It is very hard to keep engagement up on a game (as it is with anything else), which is why it’s especially impressive to see the daily actives so high for games with tens of millions of users. FarmVille has an amazing 26.7 million daily active users, or 41 percent of its total user base — it is by far the most engaging app on Facebook, that we know of. And it’s still growing, with an increase of 1.82 million daily actives in the past week.

Same goes for Café World, which is seeing its monthly actives rate level off, relatively speaking, while its daily actives (and so, its sticky factor) have taken a recent upswing, climbing to 34% since the beginning of the month. This suggests Zynga may have recently introduced another engagement-driving feature or two, or pumped in more ads, or did some new cross-promotion.

Happy Aquarium also continues to surge, although its daily actives appear to be tracking its monthly actives at a pretty consistent 28% since last month.

In the non-game category, we’re also seeing an unsurprising mix of simple apps, like quizzes, and others, like some of Facebook’s own mobile apps. All of these typically show up in our weekly posts on the apps gaining the most monthly active users.

There’s no doubt that Tyler Durden would have some issues with Facebook, but a new Connect integration is now out promoting the 10th anniversary of the film featuring Chuck Palahniuk’s unforgettable character.

The Fight Club film adaptation of Palahniuk’s novel is celebrating its 10th year the release of an anniversary edition on Blu-ray tomorrow. To get in the spirit of the film, you can tap into a specifically-themed Facebook Connect application to say “Welcome To The Mayhem.” Once you Connect, you’ll see and hear clips from the film with your photos and information injected into the theme of the film.

We’ve seen several applications that are very similar, most recently a promotion for Discovery Channel’s Shark Week. The Shark Week promotion had an almost identical interface, pulling pictures and information from Facebook profiles to make the user a part of the story.

While it’s been 10 years since the release of the Fight Club movie, the character of Tyler Durden still resonates with fans. There are quite a few Facebook pages devoted to Brad Pitt’s character, with some of the larger pages boasting 2,000+ fans. There are even successful spinoffs using the character’s name, like the “What Would Tyler Durden Do?” blog and Facebook page that doesn’t actually have anything to do with the movie, but can probably attribute a good deal of its nearly 2,900 fans to its use of Durden’s name and image.

While Tyler Durden would probably be appalled at the concept and magnitude of Facebook, Fight Club director David Fincher seems to be intrigued by the social network. The director is currently working on a film chronicling the founders of Facebook and how success changed their lives.

It’s been about three weeks since Facebook announced its Platform roadmap for the rest of 2009 through early  2010. It  series of 19 changes primarily affecting the mechanics of and rules around Facebook’s viral communication channels that applications use to spread and engage users. Last week, we took a look at what smaller developers are saying. The largest app developers are hard at work redesigning and re-optimizing their communication channel flows as a result of the new specs and policies. What are they saying about the changes?

1) Removal of app to user notifications

News of the removal of app to user notifications was pretty hard for many of the largest developers to initially stomach. However, while the removal of a channel that many have relied heavily upon will be rough in the short term, most understand that the channel has become clogged with spam and is losing value – both for users and developers. That hasn’t stopped some developers from stuffing it as much as possible – but not all have. Soon, app-to-user notifications will be going away, and developers will need to primarily rely on email for app-to-user messaging.

Some of the largest developers, anticipating the need to control user communication more, have been driving users to share their email addresses for a long time by requesting user email addresses in their apps. Facebook now wants this to all happen directly between apps and users, instead of needing to worry about creating the right kind of allocation limits on developer use of the Facebook notification channel. Notifications will still continue to be used by Facebook directly for things like likes, wall posts, comments, and photo tagging.

2) Removal of user to user notifications, UI deprioritization of requests

While most developers ultimately agree that the removal of the current form of app to user notifications is a positive for the Facebook Platform ecosystem, there is deeper concern about Facebook’s approach to user-to-user notifications and requests in the current roadmap. Developers argue that many user to user notifications are actually high-quality and engaging, so throwing the baby out with the bathwater (removing notifications and potentially burying invitations in the inbox) could actually be unhealthy for the Platform overall.

Preliminary screenshots released by Facebook show invitations being a third Inbox tab, behind Messages and Updates (from Pages). If this is the only place application invitations are surfaced, developers will see big decreases in conversion rates, and we agree that Facebook should provide a better access point for user-to-user application communication. Other proposed changes, like the user-to-user message composer, should drastically improve signal to noise in and of themselves.

3) Algorithmic News Feed, prohibition on auto-popup feed forms

Overall, while the largest Facebook developers are bracing for the pain of Facebook’s new policy prohibiting the auto-popup of feed forms — a pretty aggressive practice some have become very accustomed to – they agree that an engagement-based algorithm that brings the highest quality feed stories to the front is the right direction for Facebook to take the News Feed.

Giving good air time to high quality app feed stories will decrease the incentive to pump out as many stories as possible to populate the real-time stream, as happened over the last few months. The user broadcast channel will still remain important when all the changes have taken place, there will just be many less feed stories published overall.

Conclusion

Overall, most of the largest developers agree that Facebook is moving in a positive direction with the changes overall to preserve the fidelity of its communication channels, and developers are very glad that Facebook announced a roadmap ahead of launching these changes. Nevertheless, there is still some significant concern over how exactly some of the changes will be implemented.

In addition, a couple developers are starting to grumble that Facebook is starting to look a little Microsoft-esque when making changes like the recent News Feed update in which Facebook now shows only one image by default in developer feed items, while still showing three images by default in its own Photos feed items. (Microsoft has been criticized for reserving proprietary APIs for itself over the decades.)

However, none of the larger developers are planning on decreasing investment in the Facebook Platform any time soon – in perhaps the most telling sign, they’re all stepping development efforts up.

There are a couple dimensions to Zynga’s new $15.2 million funding. One is time. VentureBeat and peHUB reported the company’s latest regulatory filing earlier today. But, we heard rumors about “another round” of some sort that it was raising, back in April of this year.

One source, who previously said Zynga had raised more money in late June, has reiterated that point to us now. Meanwhile, Zynga has denied a new round of funding or not commented, at least up until today.

The filing shows that it was an extension of an existing round. That’s one of the ways that the company could have credibly denied a “new round” up to this point.

In terms of investors, the money apparently came from existing ones, as the filing — a legal document that the company has to submit to the government about any fundraising activity — doesn’t list any others. Zynga’s investors include: Kleiner Perkins, Foundry Group, Avalon Ventures, Institutional Venture Partners and Union Square Ventures, who together have put in $4o million to date; we have more recently heard that Zynga’s banker has been Allen & Co., and earlier this year the company was intending to raise a round worth between $500 million and $600 million.

Getting the Full Picture

The other dimension is space — between how much the company is rumored to be making and what its valuation is. We hear the valuation is around $625 million, although the company isn’t telling us anything beyond confirming the filing…

> Continue reading on Inside Social Games

As expected, November 17th is indeed the day that Xbox Live goes social with its latest big update. The popular online console service now has integration into leading social sites Facebook and Twitter.

Currently, the integration for Facebook is not the complete version, so you won’t be playing any FarmVille on your high definition television. However, the Live rendition does incorporate all of your major Facebook site features. From your TV, you can view pictures (which was a personal favorite), see updates, and post to your feed. Granted, it is a bit obnoxious to type with a controller, and not a keyboard, but it is still pretty cool from what we’ve played around with so far.

Another interesting feature is that you can see all of your Facebook friends who are on Xbox Live and all of your Xbox Live friends who are on Facebook (once they have installed it on their console). Of course, this doesn’t mean that your normal Facebook friends list is forsaken. On the contrary, you can see all of them and view all their updates, news feeds, and pictures right from your couch. It’s nothing different, really, from what you can do on the web… except the whole 1080i thing.

Now, if Twitter is more your thing, then that is here too. From here, the integration is a little fuller (but then again, there is a lot less to Twitter than Facebook). Users can tweet directly from their console, see the latest tweets from whom they are following, and even view what trending topics are out there.

Beyond, Facebook and Twitter, the new Xbox Live update has also included Zune and Last.fm. The former allows users to watch high definition, 1080p, television and videos with up to seven friends. Seems minor, but with the digital age bringing people together across the world, it really adds another great means to connect with them. Last.fm, on the other hand is a program that allows you to customize and listen to various radio stations wrought with free music. Users can choose to skip, “ban,” or “love” a myriad of tracks that will allow them to create a mix of music that is perfect for them. In fact, stations can be browsed based on popularity, artists, and for those in the UK and U.S., a gamers-only station filled with popular game soundtracks.

Overall, the new additions to Xbox Live are a phenomenal boost to the console’s social endeavors. Quite frankly, just setting up some gamer music stations led us to an exorbitant amount of procrastination. And that doesn’t include the time it took to play around with Facebook and Twitter. However, the new updates only seem to be available if you own a Gold Membership and not the free Silver Membership. Frankly, this sort of kills a lot of the update.

Microsoft wants the Live service to be more social. To have people do more than just play games on it. However, the people that play games all the time are there to play games, not so much use these new social features (save Zune, perhaps). The people they want to attract – the more casual crowd – is not going to pay for a Gold account when they can get the same social networks for free on the computer. At the very least, Facebook and Twitter need to be made for the free Silver account; otherwise… what is the point? Hopefully that will change, but as it stands, it is still a very cool addition.

More brands are moving on to Facebook, using pages to engage with users — but brands need to make sure they can manage the free-wheeling nature of user discussions without getting overrun by spam or inappropriate content. LiveWorld is the latest company to try to solve these problems. Already an established forum and community moderation services provider for major brands on the web, the company is launching three applications designed to live within Facebook Pages. Its first client will be Campbell’s Soup, although chief executive Peter Friedman says it has many more in the works.

Each is designed to help users and brands interact more easily, and appropriately. LiveWorld has already developed a filter for things like spam and foul language, and lets brands review and decide to approve or reject user content within a back-end administrative system. Its administrative panel also includes metrics about things like most active users and discussions. It also provides its own in-house support staff, for brands looking to outsource the labor.

The forums app lets users create and comment on discussion threads, but it goes further than the basic Facebook-created “discussions” app by letting brands do things like add polls and customize the HTML.The “Idea Power” app lets a company share or solicit ideas from users, for instances where it wants to do market testing for a new product or whatnot; users can upload, vote on and tag content, and not just text but also photos, audio and videos. A third application lets a brand create a question-and-answer format for users, so people can come in, see if their own question has been answered already, and decide if they want to ask their own. Each application also includes standard features, like links to user profiles and the option to post activity back to users’ walls and news feeds.

San Jose, Calif.-based LiveWorld also offers additional staffing support and consulting services for brands, and it is pushing that part of its business on to Facebook, as well.

All in all, this is a significant move by an established online services company to help brands integrate Facebook with the rest of their activities on the web. Facebook features can also be integrated with LiveWorld’s other online applications within a single back-end system so a company can more easily manage user interactions in multiple online locations.

Hallmark, the greeting card empire, already offers e-cards on its own web site and it even has a tiny Facebook application — but now it’s getting a much larger presence on Facebook through a strategic funding and partnership deal with SocialCalendar. The calendar and gifting application developer is now being rebranded as Hallmark SocialCalendar, and the app will get “thousands” of additional e-card content options for the apps users, founder and chief executive Raj Lalwani tells us.

SocialCalendar, a combination calendar and gift-giving application, launched early on the Facebook platform, and it has managed to build a large and stable user base of nearly 2 million monthly active users and 13 million total users. It has persevered — and even thrived — through Facebook’s myriad platform changes, as we’ve been covering over the years.

The deal with Hallmark is a big win for the startup, and validates other applications that are building applications that aren’t social games.

And today, the two companies are also rolling out a new or improved set of SocialCalendar features, including a way to post to high-quality, animated Hallmark content on to friends’ walls, together with a personalized message. The startup has also recently rolled out some other tools, like a way to schedule a gift to post on somebody’s wall for their birthday.

Greeting cards are inherently social — lots of people like to leave masses of them sitting on tables or hanging up on walls during holidays and birthdays — but Facebook provides an even more meaningful place for them to be seen. “When sending e-cards or greeting cards, it just used to be you and them,” Lalwani explains. “With Facebook’s wall, everyone else who sees the receiver’s wall also sees the card. I think that has made it more interesting.”

SocialCalendar, part of the Sunnyvale, Calif.-based Newput Corporation, is also looking to expand its virtual gifts line to Facebook’s gift store. The company is already one of a handful of third-party developers using Facebook’s own virtual currency, Credits. Users can purchase 10 credits for $1.00, then use the credits to buy gifts within apps like SocialCalendar or within Facebook gift store. And yes, SocialCalendar is also looking to expand into that gift store, and now it has the Hallmark brand to help it make the push.

RockYou was one of the earliest big developers on social networks like Facebook and MySpace, and now it has raised a $50 million round fourth round of funding from SoftBank (the actual firm, not the venture arm). The company originally grew on MySpace, with simple widgets like photo slideshows, and then on Facebook, with apps for simple actions like poking and gifting.

While other companies have focused on building social games over the past year or so, RockYou has morphed into a sort of social advertising service, where it develops its own apps and games, and sells space in its own applications to other developers and to traditional advertisers. Zynga, for example, was at one point paying RockYou more than a million dollars a month, according to sources, to advertise Texas Hold ‘Em Poker and other popular applications. When we wrote about the money going through the social gaming ecosystem back in May, we heard RockYou was on track to make $20 million in revenue this year. Now, it says it is likely to make $30 million or more, apparently — the company has not confirmed this number with us.

We asked chief executive Lance Tokuda how its advertising business is doing, overall, as well as who the company is specifically working with. Here’s what he said:

We’ve exploded in reach hitting over 200 million users a month and business for us has been up and to the right. September was our best month ever and October was even better. Some of our top competitors with less reach have completely dropped out of the branded sales space so that has been an additional boost for our brand team. We’ve done campaigns with multiple brands.

But it still has its own applications, including some gaming ones like Speed Racing, Hero World, and RockYou Pets. It recently upgraded Zoo World, an animal world game, from a text-based interface to a virtual world one. It’s launching a gifting app on MySpace, tomorrow, that uses virtual goods. Virtual goods could create another revenue stream for RockYou. We also hear it’s been looking at, if not buying, gaming companies in Korea and Japan, although the company didn’t confirm that when we asked. However, “RockYou Asia,” a regional subsidiary, is live on Mixi in Japan, Xiaonei in China and Cyworld in Korea.

Separately, Tokuda says the company is planning to launch “a fully Facebook compliant offers platform for social games.”

Gaming is a strategy shift from where the company was at in its earlier days, and it is not alone in the move. Another early app developer, Slide — at one point RockYou’s rival for the top spot — focused on games much earlier this year. It is now starting to pump out new titles, that are seeing some traction.

RockYou currently has 39.5 million monthly active users and 1.90 million daily active users, so it has its work cut out for it if it hopes to become a leading social gaming company — it is now the twelfth-largest developer on Facebook in terms of daily active users, well behind market leaders like Zynga and Playfish.

Interestingly, SoftBank was the only investor in this round — although “there’s still a window for existing investors and we expect some additional investments,” according to Tokuda. None of the venture firms that have previously funded it participated in this round, which is usually not a good sign; those include DCM, Lightspeed Venture Partners, Partech International and Sequoia Capital. However, when we asked, Tokday said that “we are not in trouble, RockYou is still growing on reach and sales!  (Also, this was an up round),” meaning the company’s valuation has increased since its last funding.

The company has already raised $69 million in three rounds; another $50 million gives it more room to work on its ad business, and move deeper into social gaming. In the brutal struggle to build successful businesses on social networking platforms, this funding helps ensure that RockYou is still in the mix.

A number of smaller applications gained so many users that they have made our weekly list of the top 20 growing apps — although, as usual, they are mostly games or quizzes. The most obvious “small app” is Zynga‘s FishVille, which we’ve covered separately as it grew by an impressive 8.24 million monthly active users last week to reach 9.24 million.

Considering FishVille is from the largest developer on the platform — and the one with the most cross-promotional power as well as money for advertising, let’s take a look at some smaller ones. Next on the list is Happy Aquarium from CrowdStar, a relatively small developer but an already-big app: It gained 1.93 million to reach 27.0 million monthly actives, on the same trajectory as past weeks. So moving right along down the list, we come to a quiz app.

	Name	MAU	Gain	Gain, %
1.	FishVille	9,238,698	+8,237,776	+89.17
2.	Happy Aquarium	27,054,550	+1,930,762	+7.14
3.	QuizBone	3,060,842	+1,329,416	+43.43
4.	Addict	1,119,044	+1,119,002	+100.00
5.	FarmVille	64,606,716	+902,322	+1.40
6.	Diva Life	1,589,777	+796,317	+50.09
7.	Island Paradise	6,085,569	+750,521	+12.33
8.	Little Warrior	2,324,123	+674,042	+29.00
9.	Friend Quiz	6,086,969	+635,005	+10.43
10.	friend.ly	4,398,092	+487,495	+11.08
11.	Yakuza Lords	1,229,559	+468,293	+38.09
12.	Facebook for iPhone	17,687,228	+448,596	+2.54
13.	Farmville Gifts	427,577	+401,200	+93.83
14.	Fish Life	1,611,848	+389,427	+24.16
15.	Mobile	9,693,660	+327,247	+3.38
16.	Texas HoldEm Poker	19,201,295	+323,468	+1.68
17.	Snowball Fight	335,255	+303,988	+90.67
18.	Roller Coaster Kingdom	15,426,497	+302,012	+1.96
19.	Band of Heroes	436,604	+293,784	+67.29
20.	Honesty Box	2,698,646	+285,759	+10.59

QuizBone, by Lyore Network, is a familiar idea: A quiz template that lets people create their own quizzes. The top example within the app is WHAT’S YOUR SWEAR WORD, with the tagline FIND OUT HERE YOUR SWEAR WORD AND USE IT MORE OFTEN. It has come out of nowhere, growing by 1.33 million to reach 3.06 million monthly actives. At number four, there’s Addict, a simple app that just gives you a percentage score of your Facebook addition based on how often you do things on the site. It grew all of its 1.12 million users last week.

Then, we have the first of three games on today’s chart from LOLapps: role-playing game Diva Life, which grew by 796,000 last week to reach 1.59 million monthly actives. LOLapps has been cooking up a range of RPG games lately, with Yakuza Lords and Band of Heroes also appearing further down on today’s list. Note that the latter two also made our up-and-comers list last Friday; that list looks at the top growing apps with between 100,000 and 1 million users, so clearly, and Yakuza Lords has since moved up into the AppData big leagues. On a design level, these games distinguish themselves not so much through the game mechanics but by having slick images and story lines, which something that cannot be said for some of the other RPGs on Facebook.

At number 8 on the list is Island Paradise, a farming-style simulation game from Neopets creator Meteor Games — it also showed up last week. At number 9 we have Little Warrior, a basic arcade-style game that also showed up last week.

At 10 and 11 are two friend-analyzing apps. The first, friendQuiz, has you go through a set of yes-or-no questions about your friends, then gives you a score about how well you know your friends. The second, Friend.ly, analyzes your friends’ profile meta-data and tells you stats like the top TV show from among everyone.

Facebook’s iPhone app and Mobile web app also make appearances, as they often do.

And another interesting one is FarmVille Gifts, which contrary to what the name suggests, is not made by Zynga. Instead, the app lets you send FarmVille-themed gifts to your friends but “NOT,” as the app makes clear, to your friends in FarmVille. This looks exactly like a trademark violation, to say the least. As we noted when we spotted the app in our up-and-comers list last week, we’re surprised it has not been shut down yet.

It’s been just over a year since we first launched AppData, the easiest way to track application traffic on the Facebook Platform. Since then, the number of interesting applications on the Facebook Platform has only continued to grow.

Today, we’re excited to announce three new updates to AppData: DAU leaderboards, “sticky factor” leaderboards, and “sticky factor” historical charts.

With these new AppData features, you can:

1. See which apps have the highest ratio of daily active users to monthly active users (DAU/MAU) – also known as the “sticky factor” because it’s a good metric of day-to-day app engagement.
2. Rank applications by most DAU as well, in addition to MAU.
3. View historical DAU/MAU and DAU charts for any Facebook application or developer.

Here’s a quick look at who’s topping these leaderboards today.

1. AppData DAU/MAU Leaderboard (for apps with 10 million+ MAU)

It’s clear which apps are more engaging on a day-to-day basis. Facebook’s own mobile apps have a sticky factor near or above 0.5, with FarmVille, Cafe World, Bejeweled Blitz, Restaurant City, and Happy Aquarium leading all third party apps, while others are around the 0.05 mark.

	Name	DAU/MAU
1.	Facebook® for BlackBerry® smartphones	0.57
2.	Facebook for iPhone	0.48
3.	FarmVille	0.39
4.	Café World	0.33
5.	Bejeweled Blitz	0.28
6.	Restaurant City	0.27
7.	Happy Aquarium	0.27
8.	Farm Town	0.27
9.	Mafia Wars	0.23
10.	Pet Society	0.23
11.	Texas HoldEm Poker	0.22
12.	Roller Coaster Kingdom	0.18
13.	YoVille	0.17
14.	MindJolt Games	0.14
15.	Birthday Cards	0.05
16.	Causes	0.05
17.	Music	0.05
18.	Quiz Monster	0.05
19.	Top Friends	0.04
20.	FamilyLink.com (formerly We’re Related)

2. AppData DAU Leaderboards

FarmVille is the biggest application on the Facebook Platform by daily active users by a margin of 2.5 to 1 over the second biggest app by DAU, Cafe World.

	Name	DAU
1.	FarmVille	25,355,559
2.	Café World	9,252,229
3.	Facebook for iPhone	8,567,372
4.	Happy Aquarium	7,421,763
5.	Mafia Wars	6,294,318
6.	Facebook® for BlackBerry® smartphones	6,261,393
7.	Pet Society	5,116,477
8.	Farm Town	4,956,220
9.	Restaurant City	4,937,401
10.	Texas HoldEm Poker	4,235,776
11.	YoVille	3,310,014
12.	Bejeweled Blitz	2,945,277
13.	Roller Coaster Kingdom	2,712,459
14.	MindJolt Games	2,000,257
15.	Causes	1,779,765

3. Historical Sticky Factor Charts (example: Fish World)

As you can see below, Fish World has been improving engagement over the last few weeks. The app’s sticky factor is now up to 28% from 23% earlier in the month.

That’s it for now! We look forward to hearing your thoughts. See more at AppData.com.