[markonen]

In my personal comparison, a huge factor for RDS and against Heroku is something that I have never seen mentioned in these comparisons: you can run multiple databases on a single RDS instance and you can't do that with Heroku.

My company has a bunch of microservices that each need a Postgres database, but none of them are particularly high traffic. We do however need high availability guarantees for all of them, and so Heroku's pricing starts at $200/mo per database.

With RDS, we get adequate performance for a similar total cost (around $300/mo), but get to run about a dozen separate high-availability databases on that same instance, each with their own usernames and passwords. That means significant savings.

(of course you could just share a single Heroku Postgres database and user account between these services, perhaps separating them by scheme, but that wasn't really to my taste.)

[oskari]

FYI, the Aiven database service allows you to run multiple database per instance. HA plans for Aiven start at US$200/mo and are available in multiple clouds including AWS and Google, see https://aiven.io/postgresql#comparison

[gingerlime]

First to hear about Aiven and you guys released pg hoard. Right? Interesting offerings. Are you connected to upcloud? (Both are based in Helsinki from what I could gather)

[oskari]

Yeah, PGHoard is the PG cloud backup solution we initially developed for Aiven and later open sourced. It's now used in a lot of other environments as well.

Aiven services are available on UpCloud and we're friends with the UpCloud people as we're both based in Helsinki and have met at various events, but there's no other connection between the companies.