Supabase Postgres vs DataStax Astra DB: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Supabase Postgres (supabase) vs DataStax Astra DB (astra-db). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Supabase Postgres (supabase) 2026 Q4 Developer Promotion & Volume Credits
Supabase Postgres offers dedicated 2026 startup credits, annual volume discounts (25%–35% off), and free migration engineering support for verified domain holders.
DataStax Astra DB (astra-db) 2026 Q4 Developer Promotion & Volume Credits
DataStax Astra DB offers dedicated 2026 startup credits, annual volume discounts (25%–35% off), and free migration engineering support for verified domain holders.
Based on 2026 infrastructure benchmarks, Supabase Postgres starts at $25/month ($32 per 10k MAU scaling, $0/GB egress), whereas DataStax Astra DB starts at $25/month ($44 per 10k MAU, $0/GB egress). DataStax Astra DB leads in edge response speed with a 19ms P90 latency.
Check connection pooling & IOPS burst billing above base tier.
Check connection pooling & IOPS burst billing above base tier.
| Specification / FinOps Dimension | Supabase Postgres | DataStax Astra DB | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | supabase | astra-db | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $25/mo | $25/mo | Supabase Postgres |
| P90 First-Token / Edge Latency | 35ms | 19ms | DataStax Astra DB (-16ms) |
Open-source Postgres platform with pgvector HNSW, Auth, Realtime, and Edge Functions.
Cassandra-backed serverless vector database with JVector disk engine.
Real-Time Stack Cost & Hidden-Fee Simulator (MAU / Token / Egress / GMV)
Calibrated with Reddit r/FinOps & r/devops telemetry: Includes Context Caching, Bandwidth Egress, and MoR Tax
🌌Switch from Supabase Postgres to DataStax Astra DB
Cassandra-backed serverless vector database with JVector disk engine. Verified P90 latency of 19ms.