As far as scaling Heroku, it's usually the cost that will limit you, rather than the number of Dynos. Some alternatives, arguably cheaper: - Dokku: a Docker-ba

As far as scaling Heroku, it's usually the cost that will limit you, rather than the number of Dynos. Some alternatives, arguably cheaper: - Dokku: a Docker-based Heroku clone, self-hosted (cheap!), compatible with Heroku build-packs, easy migration. - Firebase: Google's answer to an all in one deployment solution, scales really well, fairly cheap too. My view is; Heroku is a great option it's probably the fastest development cycle you could possible get. Instead of preempting scaling problems, stick with what you have, then migrate slowly to something bigger IF it becomes an issue.