Heroku
Mature app platform with a large add-on catalog
Paid dynos
Strengths
- Add-ons cover databases, cache, and logging
- Buildpacks still cover common stacks
Limits
- Dynos cost more than a comparable VPS
- There is no permanent free dyno
Choose Heroku when you want a mature add-on catalog and you will pay for dynos. Choose Render when you want Git deploys, a free tier that sleeps, and static sites next to web services.
Mature app platform with a large add-on catalog
Paid dynos
Git-based deploys for web services and static sites
Free tier, then instance plans