PouchDB

PouchDB — Is an open source Javascript Database, which stores data in a JSON format and allows you to: create, read, update, delete and query your objects with a simple JavaScript API.

• It's API can be accessed with a single call on React Native platform, which is also based on Javascript.
• Was built using CouchDB protocols and storage mechanism, and that’s why CouchDB is the most reliable server-side database to pair.
• Apart from CouchDB, it is also compatible with MongoDB, MySQL, and PostgreSQL server-side databases.