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: about 3 years ago
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
Software AG Cloud - Software AG Cloud is an open and independent cloud platform and your one-stop shop for all things Software AG offers as a cloud service.
Salesforce Platform - Salesforce Platform is a comprehensive PaaS solution that paves the way for the developers to test, build, and mitigate the issues in the cloud application before the final deployment.
Dataknox.io - Dataknox provides full lifecycle solutions from data center to cloud, including IT asset management & disposition, managed cloud infrastructure & migration services.
Heroku - Agile deployment platform for Ruby, Node.js, Clojure, Java, Python, and Scala. Setup takes only minutes and deploys are instant through git. Leave tedious server maintenance to Heroku and focus on your code.
Microsoft Azure - Windows Azure and SQL Azure enable you to build, host and scale applications in Microsoft datacenters.