Postmark vs Supabase

Postmark

Supabase

Postmark · 12 features

• Activity Search — Full-text search over sent messages for 45-365 days.
• Bounce Handling — Automatic hard/soft bounce detection + suppression management.
• Broadcast Messages — Via separate Broadcast Message Stream. Bulk sends with throttling.
• DKIM + SPF — One-click verification + auto-renewal of DKIM keys.
• Inbound Email — Route inbound emails to your webhook. Parse attachments, threads.
• Message Streams — Isolate transactional from marketing for separate deliverability reputation.
• Open + Click Tracking — Configurable at template or send level.
• Raw API Access — 100+ endpoints for bounces, servers, tags, templates, stats.
• Servers — Multi-tenant isolation: each "server" has its own API token + reputation.
• Templates — Mustachio template language with variables, alias + versioning.
• Transactional Send — Reliable API for password resets, receipts, notifications. Sub-10s delivery.
• Webhook Events — Delivery, bounce, spam complaint, open, click, subscription change.

Supabase · 24 features

• Authentication — Complete JWT-based auth: passwords, magic links, OTP, OAuth, SSO, phone, MFA.
• Backups & PITR — Automatic daily backups + Point-in-Time Recovery (WAL-G). 14-day default PITR wi…
• Compute Instances — Upgradeable DB compute: Micro, Small, Medium, Large. Affects CPU, RAM, and conne…
• Connection Pooling — Supavisor pooler: Session mode (persistent) and Transaction mode (serverless). D…
• Cron Jobs — Scheduled recurring jobs via pg_cron. Trigger DB functions, edge functions, or H…
• Custom Domains — Configure custom hostname for API endpoints with SSL certificate management.
• Database Webhooks — Async HTTP callbacks on INSERT/UPDATE/DELETE via pg_net extension.
• Edge Functions — TypeScript (Deno runtime) functions deployed globally at the edge. Supports secr…
• Full-Text Search — PostgreSQL native FTS: to_tsvector, to_tsquery, GIN indexes, fuzzy matching, wei…
• Image Transformations — On-the-fly resize, crop, quality (20-100), WebP auto-format. Smart CDN caching. …
• Log Drains — Route all stack logs to HTTP, Datadog, Loki, Sentry, S3, OTLP, or Axiom. Up to 2…
• Metrics API — ~200 Prometheus-compatible Postgres metrics. OpenTelemetry export to Datadog, Gr…
• Network Restrictions — CIDR allowlist for database access. Multiple IP ranges supported. Pro+ plan.
• OAuth 2.1 Server — Use Supabase Auth as OAuth provider. Custom Access Token Hooks for claim injecti…
• pgvector — Store and search vector embeddings in Postgres. Supports HNSW/Flat indexes, cosi…
• PostgreSQL Database — Full PostgreSQL per project: SQL editor, table editor, CSV import, 50+ extension…
• PostgreSQL Extensions — 50+ pre-installed extensions: uuid-ossp, pgvector, pg_cron, plv8, pgtap, pg_net,…
• Preview Branches — Ephemeral or persistent DB branches for isolated testing. Git integration, auto-…
• Queues — Exactly-once message queues built on pgmq. Stored in Postgres with configurable …
• Read Replicas — Async read-only replicas in multiple regions. Geo-routing, replication lag monit…
• Realtime — WebSocket subscriptions for DB changes (INSERT/UPDATE/DELETE), broadcast, and pr…
• Row Level Security — SQL-native access control; policies auto-filter rows based on auth.uid() / auth.…
• SSL Enforcement — Require TLS for all DB connections. Configurable: required, preferred, disabled.
• Storage — Files, Analytics (Iceberg), and Vector buckets with global CDN (285+ cities) and…