Snapchat developers know they dropped the ball on Android development. Will prioritize the platform over iOS going forward12
It's also no secret that Snapchat has been feeling quite a bit of pressure from Facebook and Instagram since both have incorporated their own version of Stories — a feature that was Snapchat-exclusive not long ago and was attracting tons of users to the app every day. Ever since Instagram basically copied the disappearing, 24-hour photo posts, the friendly yellow ghost has seen a drop in user activity and is now working actively to try and get some traction back.
Now, in its S-1 (Securities and Exchange Commission filing, used to register a company's securities), Snap has publically affirmed that, driven by the fact that most of its userbase is on iOS, it has spent its resources on developing for the iOS version of Snapchat much more than for the Android one. Furthermore, the company admits that its product has had a number of technical issues on various Android devices, and believes that this has caused the noticeable drop in daily active users on the platform over the latter half of 2016.
Snap now sees the need to grow, and gaining a stable footing among the Android users is a primary way of doing so. The company also does not exclude the possibility of Android smartphones becoming more popular than iPhones at some point in the future, so relying too much on the platform that's big today might turn out to be the losing strategy tomorrow. For those reasons, Snap will now flip its plan and prioritize on developing for Android, emphasizing on stability (operability) on various smartphones with the operating system.