Couchbase And CouchDB And Cloudant Sync

Couchbase 

1) https://github.com/couchbase/Android-Couchbase

2) http://www.couchbase.com/

CouchDB

1) https://code.google.com/archive/p/couchdb4j/

2) https://github.com/mbreese/couchdb4j

3) http://couchdb.apache.org/

 Cloudant Sync

1) https://cloudant.com/

2) http://www-01.ibm.com/software/data/cloudant/

If you need Information in details then contact Me.