Supabase is the open-source Firebase alternative that developers actually want to use — Postgres database, authentication, storage, edge functions, and real-time subscriptions in one platform.
The Free tier (2 projects, 500MB database, 50K MAUs) is enough to build and launch an MVP. Pro at $25/mo is where production starts: 8GB database, 100K MAUs, and usage-based overages that keep costs predictable for small-to-medium apps.
Most production apps pay $35-75/mo on Pro — genuinely cheap for a managed Postgres + auth + storage platform. The Team plan at $599/mo is steep but adds SOC 2 compliance, priority support, and daily backups.
The biggest gotcha: free projects pause after 7 days of inactivity, and egress charges ($0.09/GB) can surprise high-traffic apps.
$0
$25
$599
Custom
Free projects pause after 7 days of inactivity
your app goes offline until someone visits it again. Not suitable for any production use — only for development and demos
Database egress at $0.09/GB adds up
an app serving 100GB/mo of database reads pays $9/mo in egress. Apps with heavy API traffic or large dataset queries can see $50-200/mo in egress alone
MAU pricing on Pro
100K MAUs included, then $0.00325/MAU. An app with 500K MAUs pays $25 (base) + $1,300 (400K overage MAUs) = $1,325/mo — not the $25 headline price
File storage egress
$0.09/GB on Pro. An app serving 500GB/mo of images or files pays $45/mo in storage egress on top of the base plan
Realtime connections are limited
Free gets 200 concurrent, Pro gets 500. High-traffic real-time apps (chat, collaboration) need Team ($599/mo) for higher connection limits
Edge Function invocations
Free gets 500K/mo, Pro gets 2M. Overages at $2/1M. An app making 10M edge function calls/mo pays $16/mo extra
Compute add-ons for larger database instances
the Pro plan includes a shared instance. Dedicated compute starts at $5/mo (small) to $1,200/mo (16XL). Production apps with heavy queries need dedicated compute
Branching (preview environments) costs $0.32/hour per branch with a Compute Add-On. Running 5 preview branches 8 hours/day: $256/mo extra
SaaS app with 50K MAUs, 20GB database, 200GB storage, 12 months
500MB Postgres database, 50K MAUs, 1GB file storage, Edge Functions, real-time subscriptions. Enough to build and launch a product. Projects pause after 7 days of inactivity (wake on request).
8GB database, 100K MAUs, 100GB file storage, daily backups (7 days), no project pausing. Usage-based overages mean you only pay for what you use. Most apps stay under $75/mo.
SOC 2 compliance, priority support, daily backups (14 days), org-level billing, read replicas, and PITR (point-in-time recovery). Required for B2B SaaS handling sensitive data.
HIPAA compliance, 99.9%+ SLA, dedicated support, custom instance sizes, VPC peering. For healthcare, finance, and regulated industries.
Worth it if...
You want a managed Postgres backend with auth, storage, and edge functions in one platform — and you value the open-source foundation that means you can self-host or migrate anytime. Pro at $25/mo is exceptional value for what you get. The developer experience (dashboard, SQL editor, type generation) is best-in-class among BaaS platforms.
Skip if...
You need NoSQL/document database (use Firebase or MongoDB Atlas), your app is mobile-first with offline sync requirements (Firebase is better), or you only need a database without auth/storage (Neon is cheaper). Also reconsider the Team plan ($599/mo) — it is a steep jump from Pro ($25/mo) and many teams stay on Pro while self-managing SOC 2 compliance through other means.
Negotiation tips
Enterprise pricing is negotiable. Key levers: annual commitment, higher compute tiers, and multi-product bundling. Startups in Y Combinator, Techstars, or similar programs get Supabase credits through partner programs. The Pro-to-Team jump is not negotiable — there is no mid-tier option between $25 and $599.
Team of 3, 12 months: SaaS startup with 50K MAUs, 20GB database, 200GB file storage. Pro plan with compute add-on.
| pro Plan | Pro base: $25/mo = $300/yr |
| mau Overage | 50K MAUs within included limit = $0 |
| compute Addon | Small dedicated compute: $5/mo = $60/yr |
| egress Overage | ~100GB/mo database + storage egress = ~$9/mo = $108/yr |
| storage Overage | 200GB - 100GB included = 100GB × $0.021 = $2.10/mo = $25/yr |
| database Overage | 20GB - 8GB included = 12GB × $0.125 = $1.50/mo = $18/yr |
| Annual Total | $511/yr ($42.60/mo) — remarkably cheap for managed Postgres + auth + storage + edge functions |
maus
$0.00325/MAU beyond included (Free: 50K, Pro: 100K)
database
$0.125/GB-month beyond included (Free: 500MB, Pro: 8GB)
branching
$0.32/hour per branch with Compute Add-On
file Storage
$0.021/GB-month beyond included (Free: 1GB, Pro: 100GB)
compute Addons
$5/mo (Small) to $1,200/mo (16XL) for dedicated database compute
edge Functions
$2/1M invocations beyond included (Free: 500K, Pro: 2M)
storage Egress
$0.09/GB beyond included (Free: 5GB, Pro: 200GB)
database Egress
$0.09/GB beyond included (Free: 5GB, Pro: 50GB)
realtime Connections
Free: 200, Pro: 500, Team: higher. No per-connection overage
2024-2026
Supabase kept the $25/mo Pro pricing stable since launch. The Team plan was introduced in 2024 at $599/mo to fill the gap between Pro and Enterprise.
Free tier limits were tightened: project pausing after 7 days was introduced, and the 2-project limit was enforced (previously more relaxed). Compute Add-Ons were restructured with clearer instance sizing.
Branching (preview environments) was added in 2024-2025 with per-hour pricing. The overall trend: base prices stable, more features and infrastructure options added at usage-based rates.
Firebase (Spark free, Blaze pay-as-you-go) is the direct competitor as a backend-as-a-service. Firebase uses NoSQL (Firestore) vs Supabase's Postgres — a fundamental architectural difference. Firebase's free tier is more generous for small apps, but costs escalate faster at scale. Supabase wins on: SQL (Postgres), open source, data portability, and self-hosting option. Firebase wins on: real-time sync, mobile SDKs, and Google ecosystem integration. PlanetScale ($0 free, $39/mo Scaler) is a managed MySQL alternative. Better for MySQL-native teams. PlanetScale's branching and schema change workflow is more mature. But PlanetScale is database-only — no auth, no storage, no edge functions. Supabase is a full backend platform.
Neon ($0 free, $19/mo Launch, $69/mo Scale) is the closest database-specific competitor — serverless Postgres with branching and auto-scaling. Neon is cheaper for database-only needs and has true scale-to-zero. But Neon doesn't include auth, storage, or edge functions. Choose Neon if you only need a database; Supabase if you need a full backend.
Appwrite (open source, free self-hosted, Cloud free tier) is another open-source BaaS alternative. Similar feature set (database, auth, storage, functions) but uses a document database instead of Postgres. Less mature but completely free when self-hosted.