Based on our record, Oracle Cloud Platform seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I wouldn't recommend using free hosting services since some are unreliable, but maybe check out Amazon's EC2 (good luck with the free plan's specs though) or Oracle Cloud's Always-Free services (though the well-specced one runs on ARM architecture + it's quite hard to get one most of the time). Source: over 1 year ago
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
Microsoft Azure - Windows Azure and SQL Azure enable you to build, host and scale applications in Microsoft datacenters.
Dokku - Docker powered mini-Heroku in around 100 lines of Bash
Salesforce - CRM software solutions and enterprise cloud computing from salesforce.com, the leader in CRM and platform as a service.
Google Cloud Functions - A serverless platform for building event-based microservices.
Amazon AWS - Amazon Web Services offers reliable, scalable, and inexpensive cloud computing services. Free to join, pay only for what you use.