Try Aiven for PostgreSQL® for free

Aiven, a cloud-based database management company, is offering a free trial of its PostgreSQL service with no commitment required. New users will automatically receive US$10 worth of credits to try out the hobbyist level plans for approximately two weeks or longer if instances are powered off when not in use. After the credits have been used up, the database will stay active if a credit card has been added to the service. Otherwise, it will be powered down but can be restored by entering card details. The trial allows users to try out any plan type, including business and premium plans.