Staxly

Supabase vs SendGrid (Twilio)

The open source Firebase alternative with Postgres
vs. Legacy email infrastructure at scale — 100B+ emails/year

Supabase websiteTwilio SendGrid

Pricing tiers

Supabase

Free
Perfect for experiments. Projects pause after 7 days inactivity.
Free
Pro
Production-ready. Usage-based overages apply.
$25/mo
Team
For teams; includes SOC2 attestation and priority support.
$599/mo
Enterprise
Custom quotas, HIPAA compliance, dedicated support.
Custom
Supabase website

SendGrid (Twilio)

Free Trial
100 emails/day for 60 days. After: upgrade required.
Free
Essentials — 50k
50,000 emails/month. 1 teammate. 2 event webhooks.
$20/mo
Essentials — 100k
100,000 emails/month.
$35/mo
Pro — 100k
100,000/mo. Dedicated IPs + subusers + email validation (2.5k). 1000 teammates. 5 webhooks.
$90/mo
Pro — 2.5M
2,500,000/mo. Same Pro features.
$449/mo
Premier (5M+)
Custom. SSO, custom overage rates, white-glove.
Custom
Twilio SendGrid

Free-tier quotas head-to-head

Comparing free on Supabase vs free-trial on SendGrid (Twilio).

MetricSupabaseSendGrid (Twilio)
bandwidth gb5 GB/month
db storage gb0.5 GB
edge invocations500000 invocations/month
file storage gb1 GB
mau50000 users/month
realtime messages2000000 messages/month

Features

Supabase · 24 features

  • AuthenticationComplete JWT-based auth: passwords, magic links, OTP, OAuth, SSO, phone, MFA.
  • Backups & PITRAutomatic daily backups + Point-in-Time Recovery (WAL-G). 14-day default PITR wi
  • Compute InstancesUpgradeable DB compute: Micro, Small, Medium, Large. Affects CPU, RAM, and conne
  • Connection PoolingSupavisor pooler: Session mode (persistent) and Transaction mode (serverless). D
  • Cron JobsScheduled recurring jobs via pg_cron. Trigger DB functions, edge functions, or H
  • Custom DomainsConfigure custom hostname for API endpoints with SSL certificate management.
  • Database WebhooksAsync HTTP callbacks on INSERT/UPDATE/DELETE via pg_net extension.
  • Edge FunctionsTypeScript (Deno runtime) functions deployed globally at the edge. Supports secr
  • Full-Text SearchPostgreSQL native FTS: to_tsvector, to_tsquery, GIN indexes, fuzzy matching, wei
  • Image TransformationsOn-the-fly resize, crop, quality (20-100), WebP auto-format. Smart CDN caching.
  • Log DrainsRoute 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 RestrictionsCIDR allowlist for database access. Multiple IP ranges supported. Pro+ plan.
  • OAuth 2.1 ServerUse Supabase Auth as OAuth provider. Custom Access Token Hooks for claim injecti
  • pgvectorStore and search vector embeddings in Postgres. Supports HNSW/Flat indexes, cosi
  • PostgreSQL DatabaseFull PostgreSQL per project: SQL editor, table editor, CSV import, 50+ extension
  • PostgreSQL Extensions50+ pre-installed extensions: uuid-ossp, pgvector, pg_cron, plv8, pgtap, pg_net,
  • Preview BranchesEphemeral or persistent DB branches for isolated testing. Git integration, auto-
  • QueuesExactly-once message queues built on pgmq. Stored in Postgres with configurable
  • Read ReplicasAsync read-only replicas in multiple regions. Geo-routing, replication lag monit
  • RealtimeWebSocket subscriptions for DB changes (INSERT/UPDATE/DELETE), broadcast, and pr
  • Row Level SecuritySQL-native access control; policies auto-filter rows based on auth.uid() / auth.
  • SSL EnforcementRequire TLS for all DB connections. Configurable: required, preferred, disabled.
  • StorageFiles, Analytics (Iceberg), and Vector buckets with global CDN (285+ cities) and

SendGrid (Twilio) · 12 features

  • Dedicated IPsAuto IP warmup, multiple IP pools per brand/customer.
  • Dynamic TemplatesHandlebars-based with versioning + A/B testing on subject/content.
  • Email API (v3)REST + SMTP. Dozens of endpoints for mail, stats, templates, subusers.
  • Email ValidationVerify email addresses before sending. Credits per check.
  • Event WebhookRaw stream of send/delivery/bounce/open/click/unsubscribe/spamreport events.
  • Inbound ParseRoute incoming mail → your webhook. Attachments + spam score.
  • Link BrandingTrack links on your own domain for reputation.
  • Marketing CampaignsSeparate UI for bulk promotional sends. Segmentation, A/B, automation.
  • SAML SSOPremier tier only. SAML 2.0 auth for account access.
  • Stats + ReportsAggregated + per-category + per-subuser delivery metrics.
  • SubusersIsolate multi-tenant sends. Each subuser has own stats + API key + reputation.
  • Suppression GroupsGranular unsubscribe groups (newsletter vs billing, etc.).

Developer interfaces

KindSupabaseSendGrid (Twilio)
CLISupabase CLI
SDKC# SDK, Flutter SDK, JavaScript SDK, Kotlin SDK, Python SDK, Swift SDKsendgrid-go, sendgrid-java, @sendgrid/mail, sendgrid-php, sendgrid-python, sendgrid-ruby
RESTManagement API, REST API (PostgREST)SendGrid v3 API
GRAPHQLGraphQL (pg_graphql)
MCPSupabase MCP Server
OTHERRealtime (WebSocket)Event Webhook, Inbound Parse Webhook, SMTP Relay
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