Softwr

Technology · head to head

Supabase vs Superhuman

Supabase logo

Supabase

Technology

The open source Firebase alternative

From
Free
Rated
-
Full reviewWebsite
Superhuman logo

Superhuman

Technology

The fastest email experience ever made

From
$30/month
Rated
-
Full reviewWebsite

The short version

  • Only Supabase has a free tier, so it costs nothing to try first.
  • Each has a real cost: Supabase free tier projects auto-pause after 1 week of inactivity; Superhuman high pricing compared to free alternatives like Gmail
  • They diverge on capability: Supabase covers PostgreSQL database, Superhuman covers Blazing fast performance.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Supabase and Superhuman actually diverge.

Attributes where Supabase and Superhuman differ
AttributeSupabaseSuperhuman
Starting priceFree$30/month
Free tierYesNo
PlatformsWeb, iOS, AndroidWeb, iOS
Founded20202015

Identical on both: pricing model (Unknown), user rating (Not yet rated), category (Technology).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Supabase

  • PostgreSQL database
  • Auto-generated APIs
  • Authentication & authorization
  • Real-time subscriptions
  • Storage
  • Edge functions
  • Vector embeddings
  • Database migrations

Only in Superhuman

  • Blazing fast performance
  • Keyboard-first design
  • AI-powered triage
  • Split inbox
  • Read statuses
  • Remind me later
  • Social insights
  • Calendar integration

What people use each for

The jobs each tool is most often brought in to do.

Supabase

  • Web application backends using Postgres plus auto-generated REST/GraphQL APIsnot Superhuman
  • Mobile app backends via Flutter/Swift/Kotlin client librariesnot Superhuman
  • AI applications using vector/embeddings storagenot Superhuman
  • Authentication with 20+ social providers plus email/passwordnot Superhuman
  • File and media storage (S3-compatible with CDN) and realtime sync over WebSocketsnot Superhuman

Superhuman

  • Email managementnot Supabase
  • Inbox zeronot Supabase
  • Team collaborationnot Supabase
  • Sales outreachnot Supabase
  • Executive communicationnot Supabase

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Supabase

  • Free tier projects auto-pause after 1 week of inactivity
  • Free tier hard caps: 500 MB database, 1 GB file storage, 5 GB egress/month, 50,000 monthly active users, max 2 active free projects per organization
  • Pro plan charges usage overages beyond included quotas, e.g. $0.00325 per MAU above 100,000 and $0.125/GB disk above 8 GB
  • SOC2/ISO 27001 certification and HIPAA (add-on) compliance require the $599/month Team plan; not available on the $25/month Pro plan

Superhuman

  • High pricing compared to free alternatives like Gmail
  • Lacks unified inbox for managing multiple email accounts in a single view
  • Limited calendar functionality compared to dedicated scheduling tools
  • No native task management features

Pricing, plan by plan

Supabase

Free
  • FreeFree
    • 50,000 MAU
    • 500MB database
    • 5GB egress
  • Pro$25/month
    • 100,000 MAU
    • 8GB disk
    • 250GB egress
  • Team$599/month
    • SOC2 and ISO 27001
    • HIPAA add-on
    • 28-day log / 14-day backup retention
  • Enterprise$undefined/month
    • Custom limits
    • Dedicated support manager
    • 24/7/365 support

Superhuman

$30/month
  • Starter$30/month
    • Email productivity
    • Superhuman AI
    • Team collaboration
  • Business$40/month
    • Auto Drafts
    • Ask AI
    • CRM integrations

Which should you pick?

Choose Supabase if

  • You need postgresql database.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want auto-generated apis.
Supabase review

Choose Superhuman if

  • You need blazing fast performance.
  • You work on Web, iOS.
  • You also want keyboard-first design.
Superhuman review

Questions people ask

Is Supabase or Superhuman better?
Neither clearly leads. Supabase starts at Free and Superhuman at $30/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Supabase or Superhuman?
Supabase has a free tier; the other does not. Paid plans start at Free for Supabase and $30/month for Superhuman.
Does Supabase or Superhuman run on more platforms?
Supabase runs on Web, iOS, Android. Superhuman runs on Web, iOS.
Can I use Supabase for free?
Yes. Supabase has a free tier, so you can try it without paying. Superhuman starts at $30/month.
What is Supabase best used for?
Supabase is most often used for web application backends using postgres plus auto-generated rest/graphql apis, mobile app backends via flutter/swift/kotlin client libraries, ai applications using vector/embeddings storage, authentication with 20+ social providers plus email/password. Of those, web application backends using postgres plus auto-generated rest/graphql apis and mobile app backends via flutter/swift/kotlin client libraries are not what Superhuman is typically brought in for.
What can Supabase do that Superhuman cannot?
Supabase covers PostgreSQL database, Auto-generated APIs, Authentication & authorization, Real-time subscriptions. Superhuman covers Blazing fast performance, Keyboard-first design, AI-powered triage, Split inbox.

Answered from the vendors’ own pages

Supabase: How much does Supabase cost?

Supabase offers a free tier and three paid plans. Pro starts at $25 per month, Team at $599 per month, and Enterprise requires a custom quote. All pricing is in USD charged monthly.

Source
Superhuman: How much does Superhuman cost?

Superhuman offers three plans: Starter at $30/user/month, Business at $40/user/month, and Enterprise with custom pricing. Annual billing provides approximately 16.7% savings, bringing the Starter plan to $25/month.

Source
Supabase: What are Supabase's usage overage fees?

Pro plan users pay $0.00325 per monthly active user over the 100,000 included, and $0.125 per GB for database storage exceeding 8 GB per project. Compute instances cost $10 to $3,730+ per month.

Source
Superhuman: What email platforms does Superhuman work with?

Superhuman is compatible with Gmail and Outlook, and integrates with Google Calendar and Akiflow for calendar and task planning workflows.

Source
Superhuman: Does the Business plan include CRM integrations?

Yes, the Business plan at $40/month unlocks CRM integrations with HubSpot and Salesforce, along with advanced AI features like Auto Drafts and Ask AI.

Source
Superhuman: What happened to Superhuman after the Grammarly acquisition?

Superhuman was acquired by Grammarly on July 1, 2025. The company now operates under the Superhuman name while integrating with Grammarly's AI platform.

Source
Share

Related pages

More on Supabase

More on Superhuman

Keep looking

Other head to heads