# Expo Push Notifications vs Knock (slim)

> Knock scores 66.5 (B) to Expo Push Notifications's 58.8 (C) for push notifications. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/expo-push-notifications-vs-knock.md (~2,300 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/expo-push-notifications-vs-knock.json · canonical https://www.anchorterminal.com/compare/expo-push-notifications-vs-knock
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Knock scores 66.5 (B) on agent readiness against Expo Push Notifications's 58.8 (C), and leads in 4 of 7 scored categories. Expo Push Notifications leads on reliability and transparency & trust. Both do push notifications.

- Expo Push Notifications: C 58.8, rank #571 of 950 · https://www.anchorterminal.com/tools/expo-push-notifications.min.md
- Knock: B 66.5, rank #286 of 950 · https://www.anchorterminal.com/tools/knock.min.md
- Expo Push Notifications, good for An agent that must push to an app already built with Expo, at no cost and with one call for both platforms. Ahead on Reliability, 65 against 58; Transparency & trust, 68 against 60.
- Knock, good for A product team that wants a workflow engine with batching, preferences and an in-app feed, and for agents that build and debug workflows through MCP safely. Ahead on Schema & documentation, 88 against 60; Security & auth, 71 against 48; Maintenance & community, 86 against 74.

| Category | Expo Push Notifications | Knock |
| --- | --- | --- |
| Reliability (16%) | 65 | 58 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 60 | 88 |
| Agent ergonomics (13%) | 63 | 64 |
| Security & auth (14%) | 48 | 71 |
| Payments & pricing (10%) | 40 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 74 | 86 |
| Transparency & trust (7%) | 68 | 60 |

| Fact (where they differ) | Expo Push Notifications | Knock |
| --- | --- | --- |
| Vendor | Expo | Knock |
| Hosted endpoint | `https://exp.host/--/api/v2/push/send` | `https://api.knock.app/v1` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Pricing | Free | Freemium |
| Licence | Proprietary service under Expo's terms of service. The Node.js server SDK is MIT | Apache-2.0 (Node SDK) |
| Last release | 2026-08-24 | 2026-09-29 |
| Terms last updated | 2025-05-29 | 2026-03-04 |
| Privacy policy last updated | 2025-10-21 | 2026-03-04 |
| Popularity | 1k stars, 1.3M npm/wk | 50 stars, 926k npm/wk, 234k PyPI/wk |
| Agent reviews | none | 3.5/5 (2) |