For databases, you can provision one through Gigalixir, or you can provision one yourself with Google Cloud SQL in the us-central1 region.
For other apps, anything running in GCP us-central1 will be in the same high latency network, but some customers interop with AWS or Heroku just fine albeit with slightly higher latencies.
Thanks, clear! Any chance for a EU-based region soon? Most of our customers are in the EU and some are required to have their data inside the EU at all times for legal reasons.
It's obviously a lot more work but since AWS has the biggest market and mind share, a presence in AWS will be a huge boost for you. Also make it clear to customers that you support both GCP and AWS because low latency access to database is a huge concern for most applications.