[siminuk]

Mobile Center offers an experience optimized for building mobile apps and the workflows are simplified for mobile developers. When running iOS builds, the developers do not need to provide their own Macs and Mobile Center offers a hosted environment for the builds.

VSTS provides a great range of possible configurations and 3rd integrations for the advanced user. It also provides first party integration with source control, task boards and works with projects that go beyond just mobile apps.

PS: You'll find that Mobile Center also offers Testing, Beta Tester distribution, Crash reporting, Analytics and further back-end service for building your mobile apps.

[UK-AL]

"When running iOS builds, the developers do not need to provide their own Macs and Mobile Center offers a hosted environment for the builds."

Which is what vsts traditionally does. So know your going to have your builds in two places, one for mobile, the other for the rest.