Azure Cosmos DB vs Restdb.io

MongoDB

MongoDB is a no-SQL open-source database management system (DBMS) that uses a document-oriented database model

PostgreSQL

An advanced open source database

Amazon DocumentDB

NoSQL Database As A Service

MySQL

An open-source relational database management system (RDBMS)

Knack

Databases

Airtable

A no-code platform for building collaborative apps using spreadsheet-database hybrid as a data-layer

Zoho Creator

Business Process Management

Claris FileMaker

Business Process Management

OneSignal

Push Notifications

CloudBoost

Developer Tools