Firebase Cloud Messaging vs Knock pricing
Both are in push notification apis. Firebase Cloud Messaging is billed free (transport); Knock is billed per message (mau/message tiers). Numbers below are copied from each vendor's pricing page.
Firebase Cloud MessagingFree tier or trial
- Free tier
- Unlimited (free)
- Billed
- Free (transport)
- Best for
- Free cross-platform push transport
- Verified
- Jun 27, 2026
KnockFree tier or trial
- Free tier
- 10k messages/mo
- Billed
- Per message (MAU/message tiers)
- Best for
- Notification infra + in-app inbox
- Verified
- Jun 27, 2026
Firebase Cloud Messaging plans
| Plan | Price | What it covers |
|---|---|---|
| Spark (free) | $0 | No-cost plan; FCM messaging is fully free and unlimited with no per-message charge or message-count cap. |
| Blaze (pay-as-you-go) | $0 for FCM | Pay-as-you-go plan with a linked Cloud Billing account; FCM itself remains free, you only pay for other Firebase/GCP services you use. New upgrades may receive $300 in free Google Cloud credit. |
Knock plans
| Plan | Price | What it covers |
|---|---|---|
| Developer | $0/month | 10,000 messages/month, 500 guide active users, 500 AI agent credits, unlimited workflows/broadcasts/channels/team members, batch & delay, multi-tenancy, Google SSO. |
| Starter | $250/month | 50,000 messages/month ($0.005 per additional), 2,500 guide active users, 2,000 AI agent credits; removes Knock branding; adds email client previews. |
| Enterprise | Contact sales | Volume-based/annual-commit pricing; per-customer branding & preferences, i18n, data-warehouse analytics, Datadog, SCIM, SAML 2.0 SSO, HIPAA/BAA, enterprise SLAs, shared Slack support. |
- Steep price jump from free to the $250/month Starter plan can be hard to justify for small workloads
- Key enterprise features (per-customer branding, i18n, SCIM, SAML, HIPAA/BAA, data-warehouse analytics) are locked behind Contact-sales Enterprise pricing
- Review base is still relatively small, so the 4.6 G2 rating rests on early-adopter feedback
Source: https://knock.app/pricing