Another option is this library: https://github.com/evernote/android-job
It uses the JobScheduler and GcmNetworkManager if possible. Otherwise it fallbacks to the AlarmManager. It also handles different API levels with the AlarmManager properly. This blog post gives you an overview.
(PS: I’m the main developer who worked on this library at Evernote. It’s useful for our projects, that’s why I wanted to share it here as well)