Full Disclosure

We are NotificationAPI, so of course, we are going to toot our own horns - boop boop. We've tried our best to stay as objective as possible in this comparison. If you notice an inaccuracy, let us know, and we will fix it.

TLDR

NotificationAPI:

• 5-minute setup

• 5x less expensive

• No need to pay or manage any other third-party integrations like SendGrid, Twilio, OneSignal, …

Knock:

• Custom workflow editor

• More channels and integrations

• 5x more expensive

Defining Features

NotificationAPI includes an email service and exposes more email-related capabilities. It also includes an SMS service to send notifications to any country without Twilio. This is in addition to the in-app, browser push, voice, and mobile push features. So overall, it's much faster, cheaper, and easier to set up.

Knock acts as a router around your 3rd-parties for delivering notifications. For example, you would connect it to your own SendGrid and Twilio. So it is more difficult and pricier to set up. However, Knock has a strong notification workflow builder and supports connecting more channels.

NotificationAPI

• Supports sending notifications without any third parties

• Supported channels: Email, SMS, In-App, Push, Voice

• Preset workflows: batching, digest, throttling, and more

Knock

• Custom workflow editor

• Slack, MS Teams, WhatsApp, and other channels

Reliability

NotificationAPI and Knock seem similar in terms of reliability. However, NotificationAPI has stronger customer support, SLAs, and additional data centers.

NotificationAPI

• ~1 hour response time (EST)

• 99.9% uptime

• Data Centers: US, EU, Canada

Knock

• 99.9% uptime

• Data Centers: US only

Pricing

As a profitable and independent software company, NotificationAPI offers aggressively competitive pricing. As a VC-backed startup, Knock's service is pricier and many of its features are locked behind the Enterprise tier.

NotificationAPI

• $0.001 per notification

• Includes 3rd-party integration costs

• Many features, such as Support SLAs, Compliance, and Log Streaming do not require the Enterprise plan.

Knock

• More than $0.005 per notification

• Pay for your own 3rd-party costs

• Limited or no support except for enterprise plans