Azure Cosmos DB vs Knack

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)

Caspio

Databases

Zoho Creator

Business Process Management

Airtable

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

Caspio

Databases

Ninox

Databases

Kintone

An Agile Platform for Building Business Applications