For hosting simple open source apps there is also https://www.pikapods.com https://www.pikapods.com. Not free forever, but fairly cheap at around $1.5/month for

For hosting simple open source apps there is also https://www.pikapods.com https://www.pikapods.com. Not free forever, but fairly cheap at around $1.5/month for the typical app. I'm a founder and we specifically don't focus on running custom apps, but a moderated selection that also gets updates and optimizations. Like an app store for open source web apps.