The DevLess SDKs can be used to easily access your DevLess data from the comfort of your favorite language. If there currently is no SDK for your language, feel free to use the REST API instead.
Android - Shoutouts to @charlesagyemang for this one. You rock!
For Android, there are a couple of video tutorials:
Getting started with Android using DevLess
Performing Android Crud actions
Handling authentication in Android using DevLess