17.5/50vs20.5/50
FEATURE
CLERK
SUPABASE AUTH
OVERALL_SCORE
17.5/50
20.5/50
API_QUALITY
GOOD ███░
EXCELLENT ████
API_SCORE
8/10
10/10
GTM_RELEVANCE
9.5/20
10.5/20
CATEGORY
AUTH & INFRASTRUCTURE
AUTH & INFRASTRUCTURE
PRICING
FREEMIUM
FREEMIUM
FREE_TIER
[YES]
[YES]
REST_API
[---]
[YES]
WEBHOOKS
[---]
[---]
GRAPHQL
[---]
[---]
OAUTH
[YES]
[YES]
COMPLEXITY
HARD
HARD
LEARNING
EASY
MEDIUM
WEBHOOK_REL
GOOD
EXCELLENT
// VERDICT
OVERALL_SCORE:SUPABASE AUTH
API_QUALITY:SUPABASE AUTH
GTM_RELEVANCE:SUPABASE AUTH
EASE_OF_USE:TIE
VALUE (FREE):TIE
Strengths & Weaknesses
Clerk
Exceptional developer experience with pre-built UI components that work out-of-the-box in minutes
Comprehensive authentication features including MFA, social OAuth, passwordless, and custom session management
Built-in multi-tenancy and organization management ideal for B2B SaaS applications
Generous free tier with 10,000 MAUs making it cost-effective for startups and small projects
Costs can escalate quickly with add-ons - enhanced features like unlimited impersonation, multiple SAML connections, and advanced B2B features each cost $85-100/mo additional
Some users report frustration with low usage caps and the need for multiple add-ons to unlock full functionality
Enterprise features like SAML SSO are metered and can become expensive for applications with many connections
Supabase Auth
Postgres-native architecture stores users directly in your database, enabling seamless RLS integration and data relationships
Extremely generous free tier (50,000 MAUs) with very low per-user costs ($0.00325/MAU) after that
Zero additional vendor lock-in if already using Supabase—auth comes bundled with the platform
Strong developer experience with modern SDKs, clear documentation, and fast integration for Next.js/React apps
Requires using Supabase as your backend platform—not a standalone auth solution for existing architectures
Row Level Security policies can become complex to manage and debug as authorization rules grow
Less mature enterprise features compared to Auth0/Okta, with fewer advanced compliance certifications