## Firebase pricing

Pricing page: https://firebase.google.com/pricing. Verified 2026-10-25.
Lock-in: High: Firestore's data model and security rules don't port directly to SQL databases.

### Spark (free) (`spark`): $0/month base
- Auth monthly active users: 50,000 included; then: $0
- Firestore storage: 1 included; then: $0
- Limit: 50,000 mau (upgrade)
- Limit: 1 db_storage_gb (upgrade)
- Includes: commercial_use, db.realtime, auth.email_password, auth.google, auth.apple, auth.magic_link

### Blaze (pay as you go) (`blaze`): $0/month base
- Auth monthly active users: 50,000 included; up to 50,000: $0.0055; up to 950,000: $0.0046; up to 9,950,000: $0.0032; then: $0.0025
- Firestore storage: 1 included; then: $0.15
- Includes: commercial_use, team.multiple_seats, db.realtime, db.daily_backups, auth.email_password, auth.google, auth.apple, auth.magic_link, auth.mfa, auth.saml_sso, region.eu, compliance.gdpr_dpa, compliance.soc2
- Not yet priced: Firestore document reads ($0.03 per 100,000 after 50,000 a day), writes ($0.09 per 100,000 after 20,000 a day) and deletes ($0.01 per 100,000 after 20,000 a day), Network egress beyond 10 GiB a month, Cloud Functions, Phone Auth (billed per SMS), SAML and OIDC sign-in beyond 50 MAUs (Identity Platform tier 2)
- Note: Checked on 2026-10-25. Auth: free to 50,000 MAUs, then Identity Platform tier 1 rates ($0.0055 to 100k, $0.0046 to 1M, $0.0032 to 10M, $0.0025 above). Firestore Standard edition in us-central1: 1 GiB stored free, then $0.000205479 per GiB-hour (about $0.15 per GiB-month); other locations cost more. Reads, writes and deletes are billed per operation and aren't modelled yet. New Blaze accounts may get $300 of Google Cloud credit.

**Sources**
- Firebase: verified 2026-10-25 (https://firebase.google.com/pricing)

Confidence: high.

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