Independent: paid links never change the order. Every fact checked with the vendor.

How we review

AppSignal or Knock?

Price, integrations and Netherlands check side by side.

AppSignal

for freelancers and SMEs

Monitoring for developers in one package, with error tracking, performance, logs, uptime and host metrics.

Free plan, paid from €18.25 /month excl. VAT
3 of 3 NL check
Knock

for freelancers and SMEs and large companies

Notification infrastructure to send email, SMS, push, Slack and in-app messages from your own app through one API.

Free plan
1 of 3 NL check

The differences

  • AppSignal stores your data in the EU, Knock does not.
  • AppSignal is a Dutch company, Knock is not.
  • Only AppSignal integrates with OpenTelemetry, Vercel, Kubernetes and AWS CloudWatch.
  • Only Knock integrates with SendGrid, Postmark, Twilio, Slack, Segment, RudderStack, Hightouch and Census.

Side by side

AppSignal compared with Knock
AppSignalKnock
PriceFree plan, paid from €18.25/monthFree plan
Data in the EU✓ Yes✕ No
Data processing agreement✓ Yes✓ Yes
Company in the Netherlands✓ Yes✕ No
IntegrationsOpenTelemetry, Vercel, Kubernetes, AWS CloudWatchSendGrid, Postmark, Twilio, Slack, Segment, RudderStack, Hightouch, Census
Free trial30 daysNone
Stackwijs verdictNo verdict yetNo verdict yet
User reviewsNo reviews yetNo reviews yet
For whomfreelancers, SMEsfreelancers, SMEs, large companies

Facts checked on the vendors' websites.

AppSignal or Knock: questions

What is the difference between AppSignal and Knock?

AppSignal stores your data in the EU, Knock does not. AppSignal is a Dutch company, Knock is not. Only AppSignal integrates with OpenTelemetry, Vercel, Kubernetes and AWS CloudWatch. Only Knock integrates with SendGrid, Postmark, Twilio, Slack, Segment, RudderStack, Hightouch and Census.

Which one do you choose?

We sometimes earn from a click. That does not change the order. How we make money

AppSignal

Monitoring for developers in one package, with error tracking, performance, logs, uptime and host metrics.

Suits developers and small software companies with a Ruby, Elixir, Node.js, Python or PHP app who want monitoring in one European package.

Price
Free plan, paid from €18.25 /month excl. VAT
Try it
30 days free
NL check
3 of 3

Knock

Notification infrastructure to send email, SMS, push, Slack and in-app messages from your own app through one API.

Suits developers who do not want to build notifications by email, SMS, push and in-app themselves, with a generous free plan.

Price
Free plan
Try it
Free plan
NL check
1 of 3

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