Knock vs Shopify
Notifications-as-a-service: in-app feeds, email, push, SMS, chat via one API
vs. Dominant SaaS commerce platform — Online Store + Hydrogen headless
Pricing tiers
Knock
Developer
Free forever. 10K messages, 500 guide users, 500 AI credits/month.
$0 base (usage-based)
Starter
$250/mo. 50K messages, 2.5K guide users, 2K AI credits. Remove branding.
$250/mo
Enterprise
Custom pricing. White-label, i18n, data warehouse, Datadog, SCIM, SAML, HIPAA/BAA.
Custom
Shopify
Starter
$5/mo. Sell via social/chat links. No checkout site. Basic.
$5/mo
Basic
$29/mo ($19 annual). Full store. 2.9% + 30¢ online. 2 staff.
$29/mo
Shopify
$79/mo ($49 annual). 2.7% online. 5 staff.
$79/mo
Advanced
$299/mo ($229 annual). 2.5% online. Custom reports. 15 staff.
$299/mo
Plus
$2,300/mo (starting). Enterprise features, checkout customization, unlimited staff.
$2300/mo
Enterprise
Custom. For $1M+ GMV merchants. Dedicated support, Checkout Extensibility.
Custom
Free-tier quotas head-to-head
Comparing starter on Knock vs starter on Shopify.
| Metric | Knock | Shopify |
|---|---|---|
| guide users | 2500 users | — |
| guide users overage | $0.05/user USD/user | — |
| messages monthly | 50000 messages/mo | — |
| messages overage | $0.005/message USD/message | — |
Features
Knock · 13 features
- AI Agents — Autonomous notification drafting & workflow generation.
- Batch + Digest — Group notifications into digests on schedule or window.
- Chat — Slack, Microsoft Teams, Discord.
- Email — Send via SendGrid/Postmark/Resend/Mailgun/AWS SES as relays.
- Guides — In-product messaging, announcements, modals, banners.
- i18n / Localization — Translate templates by user locale.
- In-App Feed — Notification inbox with React/Vue/iOS/Android drop-in components.
- Multi-tenancy — Per-tenant branding, preferences, quiet hours.
- Outbound Webhooks — Subscribe to delivery events.
- Preferences — User + tenant preference center with granular controls.
- Push — iOS (APNs), Android (FCM), Expo, Web Push.
- SMS — Twilio, MessageBird, Telnyx, Vonage as providers.
- Workflows — Visual notification orchestration (branch, batch, delay, throttle).
Shopify · 22 features
- Admin APIs — REST + GraphQL for management.
- App Store — 8,000+ apps.
- B2B (Plus) — Company accounts + catalogs.
- Checkout — Shopify-managed checkout (PCI-compliant).
- Checkout Extensibility — UI extensions in checkout (Plus).
- Collections — Manual + smart grouping.
- Customers — CRM-lite + B2B (Plus).
- Discounts — Automatic + code-based.
- Hydrogen — React/Remix headless framework.
- Inventory — Multi-location stock.
- Markets — Multi-region selling (currency, language).
- Online Store — Default Liquid-based storefront.
- Orders + Fulfillment — Multi-location fulfillment.
- Oxygen — Edge hosting for Hydrogen (Plus).
- Products + Variants — Full PIM.
- Shipping + Rates — Carrier integrations.
- Shopify Functions — Rust/WASM backend extensions.
- Shopify Payments — First-party payment processor.
- Shop Pay — Accelerated checkout with saved payment.
- Storefront API — GraphQL for custom storefronts.
- Theme Store — First-party + paid themes.
- Webhooks — Event subscriptions.
Developer interfaces
| Kind | Knock | Shopify |
|---|---|---|
| CLI | Knock CLI | shopify CLI |
| SDK | knockapi (Python), knockapi (Ruby), knock-elixir, knock-go, knock-java, @knocklabs/node, @knocklabs/react | @shopify/admin-api-client, @shopify/hydrogen |
| REST | Knock REST API | Admin REST API |
| GRAPHQL | — | Admin GraphQL API, Storefront API |
| MCP | Knock MCP Server | Shopify MCP (unofficial) |
| OTHER | Outbound Webhooks | Liquid Templates, Shopify Admin, Shopify Webhooks |
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