Samsung has released the long-awaited iOS apps for its Gear wearable accessories, including the Gear S2 and S3 smartwatches and the Gear Fit 2 fitness tracker. Prior to this, the Gear devices were only compatible with Android devices. Samsung says that the Gear S app will let you download and install apps on the smartwatches, push notifications from the phone to the watch, as well as sync health and fitness data with S Health.