Firebase Authentication Pricing
Starting price
$0/month
Pricing model
Paid
Free tier
Yes
Free trial
No
Plans
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Spark (Free) | $0 | month | 50,000 MAU; All auth methods; Basic features |
| Blaze (Pay as you go) | — | month | Unlimited MAU; Phone auth: $0.01-0.06/verification; Advanced features |
Figures are the vendor's published prices. Unknown values show as “—”. Price-history tracking is not yet available for this tool. Price verified 2026-10-05. Last updated 2026-10-09.
True cost
True cost calculator
| Plan | Listed | Seat basis | Monthly · 5 seats | Annual · 5 seats |
|---|---|---|---|---|
| Spark (Free) | $0/month | flat | $0 | $0 |
Estimate from published prices. Per-seat plans scale with seats; flat plans don't; plans with included seats charge the base until you exceed them, then add the per-seat overage where published. Monthly/annual come from each plan's billing period. Taxes and add-ons excluded.
Firebase Authentication's starting price ($0) is 100% below the Identity & Access Management average of $32.