Here are the three that I know of that are equivalent to what Heroku used to offer([1],[2]):
- https://fly.io/pricing (requires credit card)
- https://northflank.com/pricing
- https://www.koyeb.com/pricing
Runners up:
- https://render.com/pricing (sleeps after 15 minutes, 30s spin-up)
- https://qoddi.com/#pricing (no custom domains)
- https://railway.app/pricing (only runs 500hrs/month, but doesn't require credit card)
- https://appliku.com/#pricing (only Django, no custom domains)
Note: Fly.io is the only one of these I have actually used. I like it so far. I plan to migrate my Heroku apps to Fly. Edit: just tried their automatic migration tool ( https://fly.io/launch/heroku ) and it works like a charm!
[1]: https://news.ycombinator.com/item?id=32594533
[2]: https://news.ycombinator.com/item?id=32595589
As I think a lot of people will point out: Heroku's DX is better than ours in a bunch of ways. Their superpower is DX, and our superpower is scaling apps out across the globe (our secondary superpower is running clusters of services). We're working hard on simplifying our Docker-based DX (our schtick is that we convert Docker/OCI images into VMs) --- we have a `flyctl launch` command that will automatically generate containers from standard framework repositories --- but Heroku has us solidly beat on that stuff.
Also, we're proudly CLI-first. If you're allergic to CLIs, we're not your best bet. We love our CLI very, very much.
I could say lots of nice things about us, but so can every hosting provider; the useful things to know are where you might be tripped up by us vs. Heroku. Also, I think Heroku is a pretty incredible accomplishment, and they've had 15+ years to work on it, so I wince at the idea that we're doing everything they do --- seems unlikely!