FirebasevsSupabase

Platform62

Developer Tool

Score Comparison

Overall

Pricing

Usability

Performance

Support

Reliability

Onboarding

Mobile

Security

Integrations

FirebaseSupabase

Signals Comparison

Mobile

Firebase

SDK size bloats mobile apps(5/10)

Supabase

No signals

Pricing

Firebase

Costs skyrocket unexpectedly at scale(9/10)
Read/write operations add up quickly(7/10)
SMS authentication costs vary wildly by country(6/10)

Supabase

Free projects pause after 7 days of inactivity(9/10)
Unexpected billing - charged for ghost compute(9/10)
Team plan jumps to $599/month - big leap from $25 Pro(6/10)

Customization

Firebase

Severe vendor lock-in with Google ecosystem(8/10)

Supabase

No signals

Usability

Firebase

Firestore query limitations frustrate developers(8/10)
Console UI can be confusing and slow(5/10)

Supabase

RLS policies complex and impact performance significantly(7/10)
Local development with CLI is unreliable - Docker issues(7/10)

Performance

Firebase

Cold starts plague Cloud Functions(7/10)

Supabase

Egress costs stack fast - small apps jump from $25 to $100+(8/10)
Edge Functions cold starts and execution limits(6/10)
Database hits connection limits as user base grows(7/10)

Support

Firebase

Support is limited without paid GCP plan(6/10)

Supabase

No live chat even on Enterprise - support feels outdated(7/10)

Reliability

Firebase

January 2026 App Hosting build failures(7/10)

Supabase

691+ outages over 3 years - frequent downtime reported(9/10)
Real-time subscription limits cause dropped connections(7/10)
Auth errors and email link failures(6/10)

Security

Firebase

Security rules have a steep learning curve(7/10)

Supabase

No signals

Integrations

Firebase

Firebase features lag behind modern alternatives(6/10)

Supabase

IPv4 connection requires paid add-on - network limitations(6/10)

Onboarding

Firebase

No signals

Supabase

Inconsistent documentation frustrates developers(5/10)

Pricing Comparison

Firebase

Spark (Free)

Free

Users: Unlimited Auth users

Storage: 1GB Firestore, 5GB Cloud Storage

Limits: Daily quotas reset, no outbound networking, limited to Google services only

No Cloud Functions, no extensions, no phone auth beyond limits

Blaze (Pay as you go)

Popular

$0/mo

Users: Unlimited

Storage: Pay per GB

Limits: Requires credit card, costs can spike without budget alerts configured

Firestore: $0.18/100K reads, $0.18/100K writes, $0.026/GB-day storage. Egress: ~$0.15/GB. SMS: $0.01-0.06+/message. Functions: $0.40/million invocations

Cloud Functions

$0.4/mo

Users: N/A

Storage: N/A

Limits: Only on Blaze plan, cold starts, 9-minute timeout (2nd gen), memory limits

Compute time charges separately, cold starts affect performance, egress costs apply

Firestore

$0.18/mo

Users: N/A

Storage: $0.18/GB-month

Limits: Query limitations (no OR, 10 whereIn limit), no native full-text search

Network egress extra, index costs, real-time listeners count as reads

Supabase

Free

Users: Unlimited users

Storage: 500MB database, 1GB file storage

Limits: Auto-pauses without traffic, No email support, No SSO, No point-in-time recovery, Max 500MB database, Edge functions limited

Projects pause after 7 days inactivity, No production SLA, Limited to 2 projects, Community support only

Pro

Popular

$25/mo

Users: Unlimited users

Storage: 8GB database, 100GB file storage

Limits: No team collaboration features, No SOC 2 compliance, No priority support, No SSO/SAML, 50GB egress then usage-based

$0.125/GB database beyond 8GB, $0.09/GB egress beyond 50GB, $0.021/GB file storage beyond 100GB, Usage-based pricing adds up fast

Team

$599/mo

Users: Unlimited users

Storage: 8GB database, 100GB file storage

Limits: No dedicated support, No custom contracts, No HIPAA (Enterprise only), Same base limits as Pro

Same usage-based pricing as Pro beyond limits, Big jump from $25 Pro, Minimum commitment expected

Enterprise

Free

Users: Unlimited

Storage: Custom

Limits: Requires sales negotiation, Long implementation timeline, Must meet minimum spend

Starts at $15,000/year minimum, Long sales cycle, Complex procurement, Annual commitment required

Feature Comparison

Feature	Firebase	Supabase
Auth
Authentication Multi-provider
Database
PostgreSQL Database Full SQL support, real PostgreSQL
Firestore Database NoSQL real-time
SQL Queries NoSQL only
Database Branching Not available (Neon has this)
PostgreSQL NoSQL only
Point-in-time Recovery Enterprise only
API
Auto-generated REST API PostgREST instant APIs
GraphQL API Via pg_graphql extension
Backend
Cloud Functions Blaze only
Infrastructure
Hosting CDN included
Security
Row Level Security Powerful but impacts performance
SSO/SAML Team plan ($599) and above
Storage
Cloud Storage For files/media
File Storage S3-compatible object storage
Analytics
Analytics Free, integrated
Monitoring
Crashlytics Free
Compute
Edge Functions Deno runtime, 60s limit
Real-time
Real-time Subscriptions WebSocket-based, has limits
Search
Full-text Search Needs Algolia/Elastic
Deployment
Self-hosting Full Docker deployment
Compliance
SOC 2 Compliance Team plan and above
HIPAA Compliance Enterprise only
Support
Live Chat Support Not available at any tier
Phone Support Not available at any tier

Signals Comparison

Mobile

Firebase

SDK size bloats mobile apps(5/10)

Supabase

No signals

Pricing

Firebase

Costs skyrocket unexpectedly at scale(9/10)
Read/write operations add up quickly(7/10)
SMS authentication costs vary wildly by country(6/10)

Supabase

Free projects pause after 7 days of inactivity(9/10)
Unexpected billing - charged for ghost compute(9/10)
Team plan jumps to $599/month - big leap from $25 Pro(6/10)

Customization

Firebase

Severe vendor lock-in with Google ecosystem(8/10)

Supabase

No signals

Usability

Firebase

Firestore query limitations frustrate developers(8/10)
Console UI can be confusing and slow(5/10)

Supabase

RLS policies complex and impact performance significantly(7/10)
Local development with CLI is unreliable - Docker issues(7/10)

Performance

Firebase

Cold starts plague Cloud Functions(7/10)

Supabase

Egress costs stack fast - small apps jump from $25 to $100+(8/10)
Edge Functions cold starts and execution limits(6/10)
Database hits connection limits as user base grows(7/10)

Support

Firebase

Support is limited without paid GCP plan(6/10)

Supabase

No live chat even on Enterprise - support feels outdated(7/10)

Reliability

Firebase

January 2026 App Hosting build failures(7/10)

Supabase

691+ outages over 3 years - frequent downtime reported(9/10)
Real-time subscription limits cause dropped connections(7/10)
Auth errors and email link failures(6/10)

Security

Firebase

Security rules have a steep learning curve(7/10)

Supabase

No signals

Integrations

Firebase

Firebase features lag behind modern alternatives(6/10)

Supabase

IPv4 connection requires paid add-on - network limitations(6/10)

Onboarding

Firebase

No signals

Supabase

Inconsistent documentation frustrates developers(5/10)

Pricing Comparison

Firebase

Spark (Free)

Free

Users: Unlimited Auth users

Storage: 1GB Firestore, 5GB Cloud Storage

Limits: Daily quotas reset, no outbound networking, limited to Google services only

No Cloud Functions, no extensions, no phone auth beyond limits

Blaze (Pay as you go)

Popular

$0/mo

Users: Unlimited

Storage: Pay per GB

Limits: Requires credit card, costs can spike without budget alerts configured

Firestore: $0.18/100K reads, $0.18/100K writes, $0.026/GB-day storage. Egress: ~$0.15/GB. SMS: $0.01-0.06+/message. Functions: $0.40/million invocations

Cloud Functions

$0.4/mo

Users: N/A

Storage: N/A

Limits: Only on Blaze plan, cold starts, 9-minute timeout (2nd gen), memory limits

Compute time charges separately, cold starts affect performance, egress costs apply

Firestore

$0.18/mo

Users: N/A

Storage: $0.18/GB-month

Limits: Query limitations (no OR, 10 whereIn limit), no native full-text search

Network egress extra, index costs, real-time listeners count as reads

Supabase

Free

Users: Unlimited users

Storage: 500MB database, 1GB file storage

Limits: Auto-pauses without traffic, No email support, No SSO, No point-in-time recovery, Max 500MB database, Edge functions limited

Projects pause after 7 days inactivity, No production SLA, Limited to 2 projects, Community support only

Pro

Popular

$25/mo

Users: Unlimited users

Storage: 8GB database, 100GB file storage

Limits: No team collaboration features, No SOC 2 compliance, No priority support, No SSO/SAML, 50GB egress then usage-based

$0.125/GB database beyond 8GB, $0.09/GB egress beyond 50GB, $0.021/GB file storage beyond 100GB, Usage-based pricing adds up fast

Team

$599/mo

Users: Unlimited users

Storage: 8GB database, 100GB file storage

Limits: No dedicated support, No custom contracts, No HIPAA (Enterprise only), Same base limits as Pro

Same usage-based pricing as Pro beyond limits, Big jump from $25 Pro, Minimum commitment expected

Enterprise

Free

Users: Unlimited

Storage: Custom

Limits: Requires sales negotiation, Long implementation timeline, Must meet minimum spend

Starts at $15,000/year minimum, Long sales cycle, Complex procurement, Annual commitment required

Feature Comparison

Feature	Firebase	Supabase
Auth
Authentication Multi-provider
Database
PostgreSQL Database Full SQL support, real PostgreSQL
Firestore Database NoSQL real-time
SQL Queries NoSQL only
Database Branching Not available (Neon has this)
PostgreSQL NoSQL only
Point-in-time Recovery Enterprise only
API
Auto-generated REST API PostgREST instant APIs
GraphQL API Via pg_graphql extension
Backend
Cloud Functions Blaze only
Infrastructure
Hosting CDN included
Security
Row Level Security Powerful but impacts performance
SSO/SAML Team plan ($599) and above
Storage
Cloud Storage For files/media
File Storage S3-compatible object storage
Analytics
Analytics Free, integrated
Monitoring
Crashlytics Free
Compute
Edge Functions Deno runtime, 60s limit
Real-time
Real-time Subscriptions WebSocket-based, has limits
Search
Full-text Search Needs Algolia/Elastic
Deployment
Self-hosting Full Docker deployment
Compliance
SOC 2 Compliance Team plan and above
HIPAA Compliance Enterprise only
Support
Live Chat Support Not available at any tier
Phone Support Not available at any tier