Appuleius is described as 'Omakase serverless hosting for your Ember.js apps' and is an website in the Online Services category. There are five alternatives to Appuleius, not only websites but also apps for Self-Hosted solutions and SaaS. The best alternative is Netlify, which is free. Other great sites and apps similar to Appuleius are StaticDeploy (Free, Open Source), Coolify (Free, Open Source), Hosti.io (Free) and Meli (Free, Open Source).
StaticDeploy is a platform for deploying static apps featuring a Docker-like workflow, instant previews, run-time configuration and a management console. It's sort of like a Kubernetes for static content and it's open-source so you can host it where and how you want.