Yes, both MongoDB and Aiven for PostgreSQL offer a Free Trial.
MongoDB is designed for Large Enterprises, Medium Business and Small Business.
Aiven for PostgreSQL is designed for Large Enterprises, Medium Business and Small Business.
Pricing details for both MongoDB and Aiven for PostgreSQL are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to MongoDB includes Microsoft SQL Server, ScaleGrid, Oracle Database, MySQL, MongoDB Cloud Manager, pgDash, Worksheet Systems, DbGate, Firebase and DbVisualizer.
Some top alternatives to Aiven for PostgreSQL includes Microsoft SQL Server, ScaleGrid, SpeedBase Professional, Oracle Database, MySQL, HarperDB Cloud, Worksheet Systems, DigitalOcean MySQL, SqlDBM and SmartDB.