Courier vs Knock

Based on our independent scoring across 6 dimensions, Knock scores 87/100 overall versus Courier's 84/100 — a 3-point margin. Knock leads on Channel Coverage in particular. That said, Courier may still be the right choice if the dimensions where it scores higher match your specific priorities — the radar chart above shows the full profile side by side.

Both Courier and Knock offer a free tier, so entry-level cost is not a differentiating factor. Compare the feature and usage limits of each free plan to see which gives you more headroom before a paid upgrade is needed.

Courier and Knock are closely matched across all dimensions. Courier has a slight edge on Channel Coverage — choose it if those align with your priorities. Knock scores marginally better on Templating — choose it if those are more relevant to your use case. The radar chart above shows the full comparison at a glance.

Switching between notification services tools is generally possible but involves migration effort: exporting your data or configuration from Courier, re-importing or reconfiguring in Knock, and updating any API integrations or environment variables in your codebase. The effort scales with how deeply embedded the tool is in your stack. Test Knock on a non-production project first before migrating.

Courier (84/100) is the better fit for teams who prioritise channel coverage — its strongest dimension — and who want a free entry point. Knock (87/100) is the better fit for teams who prioritise developer ux and want a free entry point. If both dimensions matter equally, the overall score winner (Knock) is the safer default choice.