Elasticsearch / Elastic Cloud

Open-source search and analytics engine at any scale

Knock

Notification infrastructure for developers

Elasticsearch / Elastic Cloud vs Knock: Full Comparison (2026)

Pricing, features, scores, and a clear verdict on which one is right for you.

The bottom line

Elasticsearch / Elastic Cloud positions itself as "open-source search and analytics engine at any scale" while Knock goes after "notification infrastructure for developers" — so the right pick depends on which problem you're actually solving. Both use freemium pricing, but Elasticsearch / Elastic Cloud charges per gb while Knock charges per message — a meaningful difference for larger teams. Elasticsearch / Elastic Cloud (founded 2012) has had more time to build out its ecosystem and integrations, while Knock (2021) tends to move faster on modern UX and newer workflows.

At a glance

	Elasticsearch / Elastic Cloud	Knock
Our score	77/100	84/100
Starting price	Free	Free
Free tier	Yes	Yes
Best for	Open-source search and analytics engine at any scale	Notification infrastructure for developers

Pricing comparison

Elasticsearch / Elastic Cloud

Free tier available

Self-hosted (Open Source)Free

Elastic Cloud Starter$95/mo

Enterprise$null/mo

Pricing verified 2026-04-16

Knock

Free tier available

FreeFree

Starter$100/mo

Pro$500/mo

Pricing verified 2026-04-16

Calculate your cost

How many developers?10

1500

Elasticsearch / Elastic CloudUnknown

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KnockUnknown

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Try Elasticsearch / Elastic Cloud free →Try Knock free →

Feature comparison

core

Feature	Elasticsearch / Elastic Cloud	Knock
Full-text search	Yes	No
Aggregations/analytics	Yes	No
Geo search	Yes	No
Vector search (kNN)	Yes	No
Multi-tenancy	Yes	No
Multi-channel notifications	No	Yes
Workflow builder	No	Yes
User preferences	No	Yes
In-app feed	No	Yes
Template management	No	Yes

advanced

Feature	Elasticsearch / Elastic Cloud	Knock
ML models	Enterprise	No
Anomaly detection	Enterprise	No
ELSER (semantic search)	Yes	No
Cross-cluster search	Yes	No
Watcher (alerting)	Yes	No
Branching logic	No	Yes
Digest notifications	No	Yes
Batch & debounce	No	Yes
Tenant support	No	Yes
Audit logs	No	Yes

integrations

Feature	Elasticsearch / Elastic Cloud	Knock
Kibana	Yes	No
Logstash	Yes	No
Beats	Yes	No
AWS	Yes	No
GCP	Yes	No
Kubernetes	Yes	No
Sendgrid	No	Yes
Twilio	No	Yes
Slack	No	Yes
Push (Firebase/APNs)	No	Yes
Webhooks	No	Yes

Ratings breakdown

Elasticsearch / Elastic Cloud

Ease of use

5/10

Value for money

8/10

Features

9/10

Support

6/10

Knock

Ease of use

9/10

Value for money

8/10

Features

9/10

Support

9/10

What the data tells us

Key capabilities you'd miss

Choosing Elasticsearch / Elastic Cloud means going without Multi-channel notifications, Workflow builder, User preferences (which Knock offers). Choosing Knock means losing Full-text search, Aggregations/analytics, Geo search. These are the features that typically drive the final decision — check whether your workflow depends on any of them before committing.

What company size tells you

Knock (1-10 employees) has the engineering bench to ship features across many fronts but may iterate slower on individual requests. Elasticsearch / Elastic Cloud (1,000+ employees) typically ships faster on its core product but may lag on peripheral features. Consider which matters more for your roadmap.

Choose Elasticsearch / Elastic Cloud if...

You want a free tier to get started
You value powerful features over simplicity
Getting strong value for money is a priority

Try Elasticsearch / Elastic Cloud free →

Choose Knock if...

You want a free tier to get started
You value an intuitive, easy-to-use interface
Getting strong value for money is a priority

Try Knock free →

Frequently asked questions

Is Elasticsearch / Elastic Cloud or Knock better?

Knock scores 84/100 compared to Elasticsearch / Elastic Cloud's 77/100 on VendorVS. However, the best choice depends on your needs — Elasticsearch / Elastic Cloud excels at ease of use (5/10) while Knock scores 9/10.

How much does Elasticsearch / Elastic Cloud cost compared to Knock?

Elasticsearch / Elastic Cloud starts at free (free tier available). Knock starts at free (free tier available). Elasticsearch / Elastic Cloud is the more affordable option.

Does Elasticsearch / Elastic Cloud or Knock have a free plan?

Yes, both Elasticsearch / Elastic Cloud and Knock offer free tiers, so you can try each before committing to a paid plan.

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