TrackRival
PricingCompareProductsChangelogSign inGet early access
TrackRival

Pricing and changelog intelligence for founders who want signal without babysitting competitor pages.

© 2026 TrackRival

Product
CompareChangelogWaitlist
Resources
CategoriesProduct pagesCompare indexDigestBlog
Legal
PrivacyTerms
Home/Compare/Postmark vs Supabase

Postmark vs Supabase

A side-by-side comparison of pricing, plans, and recent product updates. Pricing data last refreshed May 14, 2026.

Postmark

Reliable transactional email.

Visit →
Category
email
Plans tracked
4
Entry price
$15/mo
Free plan?
Yes
See full Postmark pricing & changelog →

Supabase

The open-source Firebase alternative.

Visit →
Category
database
Plans tracked
4
Entry price
$25/mo
Free plan?
Yes
See full Supabase pricing & changelog →

Plan-by-plan pricing

Postmark

Free

Postmark

Free
  • Test your integration with 100 emails/month
  • No overages allowed in this plan
  • Perfect for testing and side projects with low volume
  • Up to 10 custom sending domains
  • Up to 10 servers
  • + 1 more

Basic

Postmark

$15/mo
  • Extra emails @ $1.80 / 1,000
  • Industry-leading deliverability rates & speed
  • 45-day data retention
  • 5 Custom sending domains
  • Unlimited emails/day
  • + 1 more

Pro

Postmark

$16.5/mo
  • Extra emails @ $1.30 / 1,000
  • Customizable data retention up to 365 days (45-day default)
  • 10 Custom sending domains
  • Inbound email processing
  • Unlimited emails/day
  • + 1 more

Platform

Postmark

$18/mo
  • Extra emails @ $1.20 / 1,000
  • Customizable data retention up to 365 days (45-day default)
  • Unlimited Custom sending domains
  • Inbound email processing
  • Unlimited users
  • + 1 more

Supabase

FREE

Supabase

Free
  • Unlimited API requests
  • 50,000 monthly active users
  • 500 MB database size
  • 5 GB egress
  • 1 GB file storage
  • + 1 more

PRO

Supabase

$25/mo
  • 100,000 monthly active users (then $0.00325 per MAU)
  • 8 GB disk size per project (then $0.125 per GB)
  • 250 GB egress (then $0.09 per GB)
  • 100 GB file storage (then $0.021 per GB)
  • Email support
  • + 1 more

TEAM

Supabase

$599/mo
  • SOC2 & ISO 27001
  • Project-scoped and read-only access
  • HIPAA available as paid add-on
  • SSO for Supabase Dashboard
  • Priority email support & SLAs
  • + 1 more

ENTERPRISE

Supabase

Custom
  • Designated Support manager
  • Uptime SLAs
  • BYO Cloud supported
  • 24×7×365 premium enterprise support
  • Private Slack channel
  • + 1 more

Postmark vs Supabase FAQ

Postmark vs Supabase: which is cheaper?
Postmark starts at $15/mo, while Supabase starts at $25/mo in the latest snapshot.
Does Postmark or Supabase have a free plan?
Both Postmark and Supabase show a free plan in the latest snapshot, so the plan tables above are the fastest way to compare limits.
Is Postmark a good email alternative to Supabase?
Postmark is tracked in email, while Supabase overlaps for similar buyers. Use the changelog section below to compare shipping cadence before you choose.
How often is this Postmark vs Supabase comparison updated?
TrackRival refreshes pricing snapshots daily and appends new changelog entries whenever either product ships a release.

Recent product updates

What each team shipped most recently.

Postmark

No recent updates tracked.

See all Postmark updates →

Supabase

  • May 8, 2026
    Supabase Is Now an Official ChatGPT App

    Supabase now integrates directly with ChatGPT, allowing users to manage their database infrastructure through conversational commands.

  • May 6, 2026
    Introducing @supabase/server

    Supabase Server enables stateless auth, RLS-scoped clients, and CORS on the server with reduced boilerplate.

  • May 5, 2026
    Realtime or ETL? How to choose the right tool

    Supabase Realtime streams live data changes, while Supabase ETL batches them for scheduled data movement.

See all Supabase updates →

Which should you pick?

Both Postmark and Supabase serve overlapping audiences (Postmark in email, Supabase in database).

  • Choose Postmark if you value: reliable transactional email.
  • Choose Supabase if you value: the open-source firebase alternative.
  • Subscribe to TrackRival if you want to be notified whenever either of them changes pricing or ships a major update — so you can react before your competitors do.

Related comparisons

  • Neon vs Postmark
  • PlanetScale vs Postmark
  • Turso vs Postmark
  • Upstash vs Postmark
  • Xata vs Postmark
  • Firebase vs Postmark