Such as? As far as I can tell they have all been technology acquisitions. Sure, Apple uses the technology for its own products, but that should be expected since they are not in the components or IP licensing business.
I meant that lately Apple has been buying companies that offer services to both Android and iOS and then shutting-down their Android businesses, even when they're very profitable and/or popular.
* Dark Sky
* Texture
* NextVR
* Chomp
* Beddit
* Color Labs
* Emagic (Windows, not Android)
Granted, Apple does keep some Android services running, such as Shazam and Beats, but Apple's decision not just to suspend development of Android clients for services like Dark Sky and Texture, but to actively prohibit Android users while still allowing iOS access to the exact same backend web-service is just mean-spirited.