Knock vs Chakra UI
Notifications-as-a-service: in-app feeds, email, push, SMS, chat via one API
vs. Simple, modular, and accessible React component library
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
Chakra UI
OSS (MIT)
$0. MIT license. All core components free forever.
$0 base (usage-based)
Chakra UI Pro
$149 one-time. 380+ pre-built Pro components (figma + code). For commercial projects.
$149/mo
Pro Team
$449 one-time. Pro components + team license (10 devs).
$449/mo
Free-tier quotas head-to-head
Comparing starter on Knock vs oss on Chakra UI.
| Metric | Knock | Chakra UI |
|---|---|---|
| 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).
Chakra UI · 15 features
- 70+ Components — Button, Input, Modal, Menu, Table, etc.
- Accessibility — WAI-ARIA compliant.
- Animations — Framer Motion under the hood.
- Ark UI (v3) — Headless primitives layer.
- Chakra UI Pro — Paid premium components library.
- Dark Mode — Built-in color mode.
- Data Display — Table, Card, List, Stat, Tag.
- Figma Library — Matching design file (Pro).
- Form Components — Input, Select, Checkbox, Slider.
- Layout Components — Box, Flex, Grid, Stack, Wrap.
- Overlays — Modal, Drawer, Popover, Tooltip.
- Panda CSS (v3) — Build-time atomic CSS engine.
- Recipes (v3) — Variant-based component styling.
- Responsive Props — Object/array syntax.
- Theme Tokens — Colors, spacing, typography as tokens.
Developer interfaces
| Kind | Knock | Chakra UI |
|---|---|---|
| CLI | Knock CLI | @chakra-ui/cli |
| SDK | knockapi (Python), knockapi (Ruby), knock-elixir, knock-go, knock-java, @knocklabs/node, @knocklabs/react | @chakra-ui/react |
| REST | Knock REST API | — |
| MCP | Knock MCP Server | — |
| OTHER | Outbound Webhooks | Chakra UI Docs, Chakra UI Figma, Chakra UI Pro |
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