Railway Plans · $5/mo (48 GB RAM, 48 vCPU, 5 GB SSD)
Railway's Hobby tier is genuinely cheap at $5/mo with included credits, but the per-second overage billing and egress charges create real risk for variable workloads. Heroku's Fir dynos start at $25/mo and lack transparent per-tier specs, making direct comparison difficult; neither option is clearly superior without knowing your actual usage pattern.
Heroku's flat-rate Fir dynos eliminate per-second billing surprise; you pay one price and get predictable costs, unlike Railway's metered overage model.
Caveat: Heroku does not publish granular per-tier specs for Fir dynos, so you cannot verify exact CPU/RAM allocation; performance dynos require established billing history; Postgres Essential has a 99.5% SLA and no HA, creating a reliability cliff.
Before you switch