https://www.freelancinggig.com/blog/2018/04/19/couchdb-vs-mongodb-understanding-difference/

If you are confused whether to choose CouchDB or MongoDB among the NOSQL database architectures as the backend of your application, the understanding of the differences between the two is exactly what you need. Both of them are open source database software and CouchDB is a product of Apache while MongoDB itself is the company. Without further ado, let us go directly into their differences. Understanding the differences Between CouchDB and MongoDB

Understanding the differences Between CouchDB and MongoDB