Yahoo's total sales dropped by roughly 1 percent in 2014's fourth quarter, compared with the same period in 2013.
Yahoo now has 575 million [m] users who access its mobile properties at least monthly, the company says, though that includes Yahoo-owned Tumblr.
But in wooing outside developers, Yahoo's got competitors. The company's biggest rivals, like Facebook, Google and now Twitter hold their own events for outside developers, all geared toward helping them grow and make money from their apps using the companies' respective services. With that kind of competition, it may be hard for Yahoo to make the case that its services are better.
"There's a lot of noise about building, growing and monetizing mobile apps," said Shaan Puri, CEO at Monkey Inferno, a San Francisco startup space and incubator.
Still, it's a good idea for Yahoo to hold the event, he said, even if the company's goals are self-serving. "If they introduce tools to make it easier for developers to build apps," he said, "they will be feeding their own advertising ecosystem."
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