---
title: "Courier vs Knock: Which is Better in 2026? | App Stack Builder"
description: "Courier vs Knock compared for 2026 — pricing, free tiers, features, pros & cons. See which notifications & realtime tool is the better fit for your startup."
source: https://appstackbuilder.com/compare/courier-vs-knock
retrieved: 2026-09-11
---

Notifications & Realtime

# Courier vs Knock: Which is Better in 2026?

Choosing between [Courier](https://appstackbuilder.com/tools/courier) and [Knock](https://appstackbuilder.com/tools/knock)? Both are popular notifications & realtime tools. Below we compare them on pricing, free tiers, features, and pros & cons so you can pick the right fit for your stack.

Quick verdict

Both Courier and Knock are strong notifications & realtime choices. The right pick comes down to your specific feature needs, existing stack, and team preferences.

## Courier vs Knock — Side by Side

|                | Courier                                             | Knock                                                 |
| -------------- | --------------------------------------------------- | ----------------------------------------------------- |
| Category       | Notifications & Realtime                            | Notifications & Realtime                              |
| Pricing        | Free                                                | Free · paid from $250/mo                              |
| Starting price | Free tier available                                 | Free tier available                                   |
| Free tier      | ✓                                                   | ✓                                                     |
| Rating         | 4.4                                                 | 4.6                                                   |
| Best for       | Notifications & Realtime — multi-channel, templates | Notifications & Realtime — in-app-feed, multi-channel |

## Pros & Cons

C

[Courier](https://appstackbuilder.com/tools/courier)

* ✓Visual template studio across all channels
* ✓Automatic channel fallback routing
* ✓Pay exactly for what you send
* ✓Very generous free tier
* ✗No flat tier makes budgeting harder
* ✗Per-send cost is high at volume
* ✗No self-hosted option

K

[Knock](https://appstackbuilder.com/tools/knock)

* ✓Best-in-class batching and digests
* ✓Preference centre handles the hard cases
* ✓Workflow editor non-engineers can use
* ✓Unlimited team members on every tier
* ✗$0 to $250 is a very big step
* ✗No self-hosted option
* ✗Message overages add up quickly

## Key Features Compared

### Courier

* ✓Unlimited sends
* ✓Advanced routing and fallback
* ✓Usage-based, no flat fee

### Knock

* ✓50,000 messages / month
* ✓2,500 guide active users
* ✓$0.005 per extra message

### Choose Courier if…

* ✓You want a free tier to validate before paying.
* ✓Visual template studio across all channels
* ✓Automatic channel fallback routing
* ✓Pay exactly for what you send
[Courier review & pricing ](https://appstackbuilder.com/tools/courier)

### Choose Knock if…

* ✓You want a free tier to validate before paying.
* ✓Best-in-class batching and digests
* ✓Preference centre handles the hard cases
* ✓Workflow editor non-engineers can use
[Knock review & pricing ](https://appstackbuilder.com/tools/knock)

## Frequently Asked Questions

Is Courier better than Knock?⌄

Both Courier and Knock are strong notifications & realtime choices. The right pick comes down to your specific feature needs, existing stack, and team preferences.

What is the difference between Courier and Knock?⌄

Courier — Notification API and template studio that routes one send across email, SMS, push and chat, priced per send. Knock — Notification infrastructure as a service: cross-channel workflows, batching, user preferences and an in-app feed, without running any of it. Both are notifications & realtime tools; the comparison table above breaks down pricing, free tiers, and what each is best for.

Courier vs Knock: which is cheaper?⌄

Courier pricing: Free. Knock pricing: Free · paid from $250/mo. Confirm current pricing on each tool's official site, as plans change.

Which is rated higher, Courier or Knock?⌄

In our catalog, Courier rates 4.4 out of 5 and Knock rates 4.6 out of 5, so Knock has a slight edge on reviews.

See more options in our guide to the [best notifications & realtime tools for startups](https://appstackbuilder.com/categories/notifications).

## Still not sure which to pick?

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