The official Java SDK allows to record Keen.io data from any Java application. Resources available on GitHub include an Android quick start with installation, gradle, maven, and JAR download. Some of the usage instructions explain how to build a keen client, use the KeenClient singleton, and work with the source.
It wasn’t that long ago, just late last year, that I started wondering if CloudMine was trying to replace me. Just a few months pass, and it seems my fears were not unfounded.
If you’re not familiar with what the CloudMine API offers, it’s backend-as-a-service, with the core feature being easy storage and access of user - and global - data. All that’s required to store JSON data in the global scope is an HTTP call with the application’s credentials. Storing user data in a private scope only requires the addition of the user’s credentials.