Supabase vs Postmark: which is cheaper?

Postmark starts at $15/mo, while Supabase starts at $25/mo in the latest snapshot.

Does Supabase or Postmark have a free plan?

Both Supabase and Postmark show a free plan in the latest snapshot, so the plan tables above are the fastest way to compare limits.

Is Supabase a good database alternative to Postmark?

Supabase is tracked in database, while Postmark overlaps for similar buyers. Use the changelog section below to compare shipping cadence before you choose.

How often is this Supabase vs Postmark comparison updated?

TrackRival refreshes pricing snapshots daily and appends new changelog entries whenever either product ships a release.

Supabase vs Postmark

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

Supabase

The open-source Firebase alternative.

Visit →

Category: database
Plans tracked: 4
Entry price: $25/mo
Free plan?: Yes

See full Supabase pricing & changelog →

Postmark

Reliable transactional email.

Visit →

Category: email
Plans tracked: 4
Entry price: $15/mo
Free plan?: Yes

See full Postmark pricing & changelog →

Plan-by-plan pricing

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

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