Knock vs OneSignal: pricing, quotas & features (2025)
Notifications-as-a-service: in-app feeds, email, push, SMS, chat via one API
vs. Mobile + web push, email, SMS, and in-app messaging at consumer scale
Data sourced from vendor documentation · Last updated May 2026
Summary
Knock and OneSignal are both notifications platforms, addressing the same core use case with different implementation philosophies and trade-offs. Both offer a free tier, making it easy to prototype without a credit card. OneSignal's paid plans start at $19/month, lower than Knock's entry point at $250/month. Knock has a broader documented feature set (13 vs 12 features). Budget-sensitive teams will find OneSignal easier to justify early on. All pricing and quota data below is sourced from Knock and OneSignal's official documentation — not generated by AI or estimated.
Knock vs OneSignal: Comparativa de precios, cuotas y características (2025)
En esta comparativa analizamos Knock y OneSignal lado a lado — incluyendo precios mensuales, límites del tier gratuito, características técnicas, cuotas de uso (almacenamiento, transferencia, usuarios activos mensuales) y los interfaces de desarrollo disponibles. Todos los datos proceden de la documentación oficial de cada proveedor, no de respuestas generadas por IA.
Knock es una plataforma de la categoría notifications — Notifications-as-a-service: in-app feeds, email, push, SMS, chat via one API. Ofrece 3 tiers de precio: Developer gratuito, Starter desde $250/mes, Enterprise (personalizado). Su catálogo en Staxly documenta 13 características y 11 interfazes para desarrolladores.
OneSignal pertenece a la categoría notifications — Mobile + web push, email, SMS, and in-app messaging at consumer scale. Ofrece 4 tiers de precio: Free gratuito, Growth desde $19/mes, Professional (personalizado), Enterprise (personalizado). Su catálogo documenta 12 características y 9 interfazes para desarrolladores.
A continuación encontrarás los tiers de precio completos de ambas plataformas, una matriz de cuotas del tier gratuito (transferencia, almacenamiento, MAU, llamadas a la API y otros límites), el listado completo de características y los interfaces (CLI, SDKs, REST, GraphQL, MCP) disponibles para integrar cada servicio.
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Pricing tiers
Knock
OneSignal
Free-tier quotas head-to-head
Comparing starter on Knock vs free on OneSignal.
| Metric | Knock | OneSignal |
|---|---|---|
| active journeys | — | 1 journeys |
| email monthly | — | 10000 emails/mo |
| guide users | 2500 users | — |
| guide users overage | $0.05/user USD/user | — |
| messages monthly | 50000 messages/mo | — |
| messages overage | $0.005/message USD/message | — |
| mobile push | — | Unlimited subscribers |
| web push subscribers | — | 10000 subscribers |
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.
- 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).
- i18n / Localization — Translate templates by user locale.
OneSignal · 12 features
- A/B Testing — Split testing across push, email, in-app.
- Analytics + Cohorts — Delivery, open, click, conversion metrics + retention cohorts.
- Email — Transactional + marketing email with templates.
- Frequency Capping — Limit message frequency per user.
- In-App Messaging — In-app banners, modals, surveys, carousels triggered by events.
- Intelligent Delivery — Optimize send time per user with ML.
- Journeys — Multi-step automations with branching, delays, actions.
- Live Activities — iOS Dynamic Island + Live Activities.
- Mobile Push — iOS (APNs), Android (FCM/HMS) push notifications.
- SMS — Two-way SMS in 200+ countries.
- Segments — Dynamic audience targeting by tags, location, behavior.
- Web Push — Browser push via service workers (Chrome, Firefox, Edge, Safari, Opera).
Developer interfaces
| Kind | Knock | OneSignal |
|---|---|---|
| CLI | Knock CLI | — |
| SDK | @knocklabs/node, @knocklabs/react, knock-elixir, knock-go, knock-java, knockapi (Python), knockapi (Ruby) | @onesignal/node-onesignal, OneSignal Android SDK, OneSignal Unity SDK, OneSignal Web SDK, OneSignal iOS SDK, onesignal_flutter, react-native-onesignal |
| REST | Knock REST API | OneSignal REST API |
| MCP | Knock MCP Server | — |
| OTHER | Outbound Webhooks | Outbound Webhooks |
Key takeaways
- Both Knock and OneSignal offer a free tier — Knock ("Developer") and OneSignal ("Free") — with no credit card required to start.
- The entry-level paid plan is $250/month for Knock (Starter) vs. $19/month for OneSignal (Growth).
- Knock has a broader documented feature set (13 features) vs. OneSignal (12 features) in Staxly's catalog.
- Developer integrations differ: only Knock offers CLI/MCP.
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