Price, integrations and Netherlands check side by side.
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 planfor freelancers and SMEs and large companies
Open-source vector database from Amsterdam for search and RAG in your own AI app, also as a managed cloud.
Free plan| Knock | Weaviate | |
|---|---|---|
| Price | Free plan | Free plan |
| Data in the EU | ✕ No | ✓ Yes |
| Data processing agreement | ✓ Yes | ✓ Yes |
| Company in the Netherlands | ✕ No | ✓ Yes |
| Integrations | SendGrid, Postmark, Twilio, Slack, Segment, RudderStack, Hightouch, Census | AWS, Google Cloud, Microsoft Azure, Snowflake, Databricks |
| Free trial | None | None |
| Stackwijs verdict | No verdict yet | No verdict yet |
| User reviews | No reviews yet | No reviews yet |
| For whom | freelancers, SMEs, large companies | freelancers, SMEs, large companies |
Facts checked on the vendors' websites.
Weaviate stores your data in the EU, Knock does not. Weaviate is a Dutch company, Knock is not. Only Knock integrates with SendGrid, Postmark, Twilio, Slack, Segment, RudderStack, Hightouch and Census. Only Weaviate integrates with AWS, Google Cloud, Microsoft Azure, Snowflake and Databricks.
We sometimes earn from a click. That does not change the order. How we make money
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.
On the Knock website
Open-source vector database from Amsterdam for search and RAG in your own AI app, also as a managed cloud.
Suits developers building semantic search or RAG into their own app who want a vector database they can also host themselves.
On the Weaviate website
You get Knock or Weaviate with the differences in a one-off email. We don't store your address for this.
We get a fee if you take out a subscription through us. That does not change our verdict.
