Staxly

Mailgun vs Supabase

Email API for developers with deep deliverability tooling
vs. The open source Firebase alternative with Postgres

Mailgun websiteSupabase website

Pricing tiers

Mailgun

Free
100 emails/day. 1 custom domain, 1-day log retention, 1 inbound route. No credit card.
Free
Basic
$15/month. 10,000 emails/month, no daily limit, 5 inbound routes.
$15/mo
Foundation
$35/month (1st month free). 50,000 emails/month, 1,000 custom domains, 5-day retention.
$35/mo
Scale
$90/month. 100,000 emails/month, SAML SSO, 5,000 email validations, dedicated IP pools, 30-day retention.
$90/mo
Enterprise
Custom. Deliverability services, managed onboarding.
Custom
Mailgun website

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

Free-tier quotas head-to-head

Comparing free on Mailgun vs free on Supabase.

MetricMailgunSupabase
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

Mailgun · 14 features

  • Batch SendingSend up to 1,000 recipients per API call via recipient variables.
  • Dedicated IPsIP pools with auto warmup. Scale+ tier.
  • Deliverability SuiteInbox placement testing, DMARC reporting, seed lists.
  • Email LogsSearchable log of all send attempts + events.
  • Email TemplatesTemplate builder + variables + versioning.
  • Email ValidationReal-time email verification (syntax, MX, role accounts, disposable).
  • EU RegionData stored in EU for GDPR-sensitive customers.
  • Inbound RoutingRoute incoming emails to URLs/SMTP. Attachment forwarding.
  • Mailing ListsUnlimited mailing lists with bulk subscribe/unsubscribe.
  • Open/Click TrackingHTML + text tracking with configurable tracking domain.
  • SAML SSOScale+ tier.
  • Send APIREST/SMTP send with MIME + tracking.
  • TagsTag messages to slice stats.
  • Webhook Eventsdelivered, opened, clicked, unsubscribed, complained, permanent_fail, temporary_

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

Developer interfaces

KindMailgunSupabase
CLISupabase CLI
SDKmailgun.js (Node), mailgun-php, mailgun-python, mailgun-rubyC# SDK, Flutter SDK, JavaScript SDK, Kotlin SDK, Python SDK, Swift SDK
RESTMailgun REST APIManagement API, REST API (PostgREST)
GRAPHQLGraphQL (pg_graphql)
MCPSupabase MCP Server
OTHERInbound Routing, SMTP Relay, WebhooksRealtime (WebSocket)
Staxly is an independent catalog of developer platforms. Outbound links to Mailgun and Supabase are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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