---
lang: en
title: "Clerk Premium User Management vs Supabase Identity & Authentication"
canonical: "https://saasspecs.com/clerk-vs-supabase/"
hvce_version: 1
tenant: saasspecs
slug: clerk-vs-supabase
record_kind: comparison
content_sha256: 0a9b5452db4d26360b6e4e69427c42f4ce252267b9e1565c0b6b52ad65345af5
indexed_at: "2026-06-15T06:32:32.875Z"
license: citation-free
entities:
  -
    role: a
    slug: clerk
    name: Clerk Premium User Management
    type: Thing
    profile_url: "https://saasspecs.com/item/clerk/?format=md"
  -
    role: b
    slug: supabase
    name: "Supabase Identity & Authentication"
    type: Thing
    profile_url: "https://saasspecs.com/item/supabase/?format=md"
---
# Clerk Premium User Management vs Supabase Identity & Authentication

## Pair

- **A**: Clerk Premium User Management
- **B**: Supabase Identity & Authentication

## Entity A

- **Title**: [Clerk Premium User Management](https://saasspecs.com/item/clerk/?format=md)
- **Schema type**: Corporation
- **Website**: https://clerk.com
- **Email**: support@clerk.dev
- **Address**: 201 Mission Street, Suite 1200, San Francisco, California, 94105, United States
- **Coordinates**: 37.7912, -122.3934
- **Deployment Link**: [Deploy Clerk Premium User Management Stack Layer](https://partnerstack.com/your-clerk-affiliate-id)

### Summary

A purpose-built authentication system optimized for instant frontend component insertion and edge-ready user token hydration.

### Description

Clerk offers an exceptionally polished, drop-in user management system. It provides pre-built UI components and custom frontend hooks that eliminate user profile and session dashboard construction entirely.

### Attributes

- **Free Tier Allowance**: 10,000 MAU
- **Rate Limit Cap**: 2,000 RPM
- **Session Lifetime**: 720 Hours
- **Overage Fee per 1k MAU**: $0
- **MFA Support**: SMS Codes, TOTP, Backup Codes
- **Enterprise SSO SAML**: Supported natively on custom Enterprise deployment structures
- **Custom Domain Support**: Included in Free Tier default allocation for primary production URLs
- **Supported SDKs**: Next.js, React, Remix, Gatsby, Expo, Redwood, Node.js
- **Social Providers**: Google, GitHub, Apple, Facebook, Discord, Twitter, LinkedIn
- **Compliance Standards**: SOC2 Type II, GDPR, CCPA Compliant out of the box
- **Webhook Fallback Policy**: Exponential retries across a 24-hour window powered by a Svix messaging layout

## Entity B

- **Title**: [Supabase Identity & Authentication](https://saasspecs.com/item/supabase/?format=md)
- **Schema type**: Corporation
- **Website**: https://supabase.com
- **Email**: support@supabase.io
- **Address**: 85 Harrison St, San Francisco, California, 94105, United States
- **Coordinates**: 37.7833, -122.3999
- **Deployment Link**: [Deploy Supabase Identity & Authentication Stack Layer](https://partner.supabase.com/your-affiliate-id)

### Summary

An open-source Firebase alternative utilizing a highly scalable PostgreSQL metadata engine.

### Description

Supabase Auth provides a robust authentication layer built on GoTrue. It scales smoothly up to high-volume user tiers without custom backend code infrastructure.

### Attributes

- **Free Tier Allowance**: 50,000 MAU
- **Rate Limit Cap**: 10,000 RPM
- **Session Lifetime**: 24 Hours
- **Overage Fee per 1k MAU**: $0
- **MFA Support**: TOTP, WebAuthn, Phone SMS
- **Enterprise SSO SAML**: Available on Pro & Enterprise tiers via custom identity mapping
- **Custom Domain Support**: Available on Pro Tier ($20/mo) with full SSL configuration
- **Supported SDKs**: Next.js, React, Vue, Svelte, Node, Python, Go, Flutter, Swift
- **Social Providers**: Google, GitHub, Apple, Discord, GitLab, Bitbucket, Twitter
- **Compliance Standards**: SOC2 Type II, GDPR, HIPAA Compliant (with BAA agreement)
- **Webhook Fallback Policy**: Exponential backoff up to 24 hours with automatic failure truncation

## Facts (machine-readable)

| axis | unit | a_value | b_value | a_display | b_display |
| --- | --- | --- | --- | --- | --- |
| Free Tier Allowance | MAU | 10000 | 50000 | 10,000 MAU | 50,000 MAU |
| Rate Limit Cap | RPM | 2000 | 10000 | 2,000 RPM | 10,000 RPM |
| Session Lifetime | Hours | 720 | 24 | 720 Hours | 24 Hours |
| Overage Fee per 1k MAU | USD | 0.02 | 0.003 | 0.02 USD | 0 USD |

## Metrics

- **Free Tier Allowance**: 10,000 MAU / 50,000 MAU
- **Rate Limit Cap**: 2,000 RPM / 10,000 RPM
- **Session Lifetime**: 720 Hours / 24 Hours
- **Overage Fee per 1k MAU**: 0.02 USD / 0 USD

## Comparison context

This comparison covers the following catalog entities:

- [Clerk Premium User Management](https://saasspecs.com/item/clerk/?format=md) (a)
- [Supabase Identity & Authentication](https://saasspecs.com/item/supabase/?format=md) (b)