Auth & Identity

Firebase Auth vs Supabase Auth Pricing

Q: Which is cheaper, Firebase Auth or Supabase Auth?

Depends on how much you use. At hobby scale they're often close, but the gap widens fast. Scroll up to "What You'd Actually Pay" to see costs at 4 usage levels.

Q: Does Firebase Auth or Supabase Auth have a free tier?

Yes, both Firebase Auth and Supabase Auth have free tiers. Check the breakdown above to see what's included in each.

Q: How does Firebase Auth pricing compare to Supabase Auth?

We pull prices directly from both sites daily and break them down per-unit above. The cost calculator shows what you'd pay at your usage level -- from side project to production.

Pricing compared · Updated Mar 4, 2026

Firebase Auth Supabase Auth

Pricing Breakdown

Metric	Firebase Auth	Supabase Auth
Monthly Base	Free	Free
Per MAU	—	—
MAU Included	50	50,000
SSO	No	No
MFA	No	No

What You'd Actually Pay

Monthly cost at 4 usage levels -- from hobby project to production

Usage Tier	Firebase Auth	Supabase Auth	Savings
Hobby 500 MAU	<$0.01/mo	<$0.01/mo	—
Startup 5K MAU	<$0.01/mo	<$0.01/mo	—
Scale 50K MAU	<$0.01/mo	<$0.01/mo	—
Enterprise 500K MAU	<$0.01/mo	<$0.01/mo	—

Free Tiers

Firebase Auth

Spark plan: 50,000 MAU/month free for email/password and social. Phone auth: 10K SMS verifications/month free.

Free tier available

Supabase Auth

50,000 monthly active users free

Free tier available

FAQ

Which is cheaper, Firebase Auth or Supabase Auth?▾

Depends on how much you use. At hobby scale they're often close, but the gap widens fast. Scroll up to "What You'd Actually Pay" to see costs at 4 usage levels.

Does Firebase Auth or Supabase Auth have a free tier?▾

Yes, both Firebase Auth and Supabase Auth have free tiers. Check the breakdown above to see what's included in each.

How does Firebase Auth pricing compare to Supabase Auth?▾

We pull prices directly from both sites daily and break them down per-unit above. The cost calculator shows what you'd pay at your usage level -- from side project to production.

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