Zynga (ZNGA), the Facebook (FB) app behemoth, still reigns supreme on its most important platform. But the erosion of its dominant position continues as smaller rivals keep chipping away at its market share. On December 26, Zynga-owned Facebook applications had 267 million Monthly Active Users, down 20 million in two weeks. Far behind it followed Microsoft (MSFT) with 70 million MAU, King.com with 65 million MAU and Instagram with 43 million MAU.
But whereas Zynga lost nearly 7% of its Monthly Active Users in the two-week run-up to Christmas, Microsoft managed to inch up by 700,000 users, King.com by 600,000 users and Instagram by 2.1 million users.
Of course, the Facebook crackdown on aggressive customer acquisition techniques has limited the growth of all third-party app developers. But the most important of Zynga’s smaller rivals have been able to avoid the kind of MAU erosion that is now plaguing the Facebook app champion.
What really pops out from Christmas Facebook app trends is the way Instagram has been able to ride a wave of negative publicity to perky 5% monthly user growth over the past two weeks.
This certainly adds some piquancy to the breathless commentary about Instagram’s “fatal blunder” and “possibly irreversible damage.”