Staxly

Pusher vs GrowthBook

Realtime pub/sub WebSocket Channels + programmatic push (Beams)
vs. Open-source feature flags + experimentation — Warehouse Native

Pusher websiteGrowthBook website

Pricing tiers

Pusher

Beams: Sandbox
Free. 1K subscribers.
$0 base (usage-based)
Channels: Sandbox
Free. 100 concurrent conns, 200K msg/day.
$0 base (usage-based)
Beams: Startup
$29/mo. 10K subscribers.
$29/mo
Channels: Startup
$49/mo. 500 concurrent conns, 1M msg/day.
$49/mo
Channels: Pro
$99/mo. 2K concurrent conns, 4M msg/day.
$99/mo
Beams: Pro
$99/mo. 50K subscribers.
$99/mo
Beams: Business
$199/mo. 115K subscribers.
$199/mo
Channels: Business
$299/mo. 5K concurrent, 10M msg/day.
$299/mo
Beams: Premium
$399/mo. 250K subscribers.
$399/mo
Channels: Premium
$499/mo. 10K concurrent, 20M msg/day.
$499/mo
Channels: Growth
$699/mo. 15K concurrent, 40M msg/day.
$699/mo
Channels: Plus
$899/mo. 20K concurrent, 60M msg/day.
$899/mo
Channels: Growth Plus
$1,199/mo. 30K concurrent, 90M msg/day.
$1199/mo
Channels: Enterprise
Custom. 10M+ concurrent, 100B+ msg/day. SLA, dedicated support.
Custom
Pusher website

GrowthBook

Open Source (Self-Host)
MIT-licensed. Unlimited everything. Community support.
$0 base (usage-based)
Cloud — Starter (Free)
Up to 3 users. Unlimited flags + experiments. Warehouse Native included.
Free
Cloud — Pro
$40/user/month. Up to 50 users. Advanced stats, visual A/B editor, CUPED, sequential testing, bandits.
$40/mo
Cloud — Enterprise
Custom. Unlimited users, SSO/SAML, approval flows, data pipelines, exportable audit logs.
Custom
Self-Host Enterprise
Open Source + Enterprise license. Visual A/B editor, advanced metrics, SSO/SAML, approvals, training.
Custom
GrowthBook website

Free-tier quotas head-to-head

Comparing be-sandbox on Pusher vs oss on GrowthBook.

MetricPusherGrowthBook
subscribers1000 subscribers

Features

Pusher · 11 features

  • BeamsPush notifications for iOS/Android/Web with device interest groups.
  • Beams Authenticated UsersTarget users by auth user ID across devices.
  • ChannelsWebSocket pub/sub — realtime events, live updates, notifications.
  • Channels WebhooksReceive server-side notifications of channel activity.
  • Client EventsPublish events from clients directly (triggered from browser).
  • Debug ConsoleLive channel debugging dashboard.
  • Encrypted ChannelsEnd-to-end encrypted messages.
  • Global ClustersUS, EU, AP-Southeast, etc. Pick nearest region.
  • Presence ChannelsTrack who is online in a channel.
  • Private ChannelsAuth-required channels with server-signed tokens.
  • StatsConnection / message dashboards.

GrowthBook · 15 features

  • Approval FlowsRequire reviewer approval on flag changes. Enterprise.
  • Audit LogsFull change history. Exportable on Enterprise.
  • Dimensions & SlicingBreak down experiment results by user dimensions.
  • Edge SDK SupportCloudflare Workers, Lambda@Edge, Fastly, Akamai EdgeWorkers, Netlify Edge.
  • ExperimentsA/B/n with CUPED variance reduction + sequential testing.
  • Feature FlagsBoolean + string + number + JSON flags with targeting.
  • Feature Reviews (PR-style)Draft → review → approve flag changes.
  • Guardrail MetricsAuto-monitor key metrics during experiments.
  • Metric CatalogDefine + reuse metrics across experiments.
  • Multi-Armed BanditsAdaptive traffic allocation. Pro+.
  • Safe RolloutsGuarded gradual rollouts with automatic rollback.
  • SSO / SAMLEnterprise SSO for cloud + self-host EE.
  • Sticky BucketingUser stays in variant even after eligibility changes.
  • Visual A/B Test EditorNo-code DOM editor for web experiments. Pro+.
  • Warehouse NativeConnect your warehouse + run experiments against your events data.

Developer interfaces

KindPusherGrowthBook
SDKPusher Beams Android, Pusher Beams iOS, Pusher Beams Web SDK, pusher-http-go, pusher-http-java, pusher-http-php, pusher-js (client), pusher (Node), pusher (Python), pusher (Ruby), PusherSwift, pusher-websocket-java (Android)Edge SDKs (CF Workers / Lambda@Edge / Fastly / Akamai), growthbook-android, growthbook-flutter, growthbook-go, growthbook-java, growthbook-node, growthbook-php, growthbook-python, growthbook-ruby, growthbook-swift, sdk-javascript, sdk-react
RESTBeams Publish API, Pusher HTTP APIGrowthBook REST API
OTHERChannels Webhooks, Pusher WebSocketWebhooks
Staxly is an independent catalog of developer platforms. Some links to Pusher and GrowthBook may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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