ABB
Yes, both CrateDB and Aiven for PostgreSQL offer a Free Trial.
CrateDB is designed for Large Enterprises, Medium Business and Small Business.
Aiven for PostgreSQL is designed for Large Enterprises, Medium Business and Small Business.
The starting price of CrateDB begins at $51/Month, while pricing details for Aiven for PostgreSQL are unavailable.
Some top alternatives to CrateDB includes ScaleGrid, MySQL, restdb.io, DbGate, Aiven for PostgreSQL, Cube.js, CockroachDB, bit.io and Cube Cloud.
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.