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Knock vs OneSignal: Pricing and Ratings Compared (2026)

Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Knock and OneSignal side by side. This page compares data; it is not a hands-on review.

On the data: On the data below, OneSignal leads on lower entry price. We do not name an overall winner for this pair.

Data comparison compiled by Toolradar, not hand-reviewed Methodology
Data comparison 148 user reviews compared Pricing checked Oct 14, 2026

Short on time? Here's the quick answer

Based on published vendor pricing and features and on public review data, here's who should pick what:

Knock

Customer engagement infrastructure for product-led growth, enabling cross-channel messaging and data activation.

Best for you if:

  • • You want comprehensive cross-channel messaging capabilities

OneSignal

Customer messaging platform for push and more

Best for you if:

  • • You want generous free tier
At a glance: Knock vs OneSignal
At a Glance
Knock Knock
OneSignal OneSignal
Starts at
Free plan, paid from $250/user/mo, billed monthly Starter plan
Free plan, paid from $99/mo, billed monthly Growth plan
Category
Marketing Automation SMS Marketing
Marketing Automation Push Notifications
Rating
4.6/5 G2 4.6 148 reviews n/a
Free plan
Yes Yes
Watch out for
Overage fees apply for messages and users on Starter. n/a

Choose Knock or OneSignal?

Knock

Choose Knock if

  • You want comprehensive cross-channel messaging capabilities
  • You want strong developer-first approach with SDKs, CLI, and AI IDE integration
OneSignal

Choose OneSignal if

  • You want generous free tier
  • You want easy to implement
  • Budget matters ($99/mo, billed monthly vs $250/user/mo, billed monthly)

In-Depth Analysis

Knock Knock

Customer engagement infrastructure for product-led growth, enabling cross-channel messaging and data activation.

Good value

Knock's pricing is quite generous, especially with its Developer tier offering 10K messages and 500 active users for free.

Watch out

Overage fees apply for messages and users on Starter.

Strengths

  • Pro: Comprehensive cross-channel messaging capabilities
  • Pro: Strong developer-first approach with SDKs, CLI, and AI IDE integration
  • Pro: Robust data integration and personalization features
  • Pro: High scalability and reliability (99.99% uptime, handles hundreds of millions of messages)
  • Pro: Compliance with HIPAA, SOC2, GDPR, CCPA

Weaknesses

  • Con: Pricing for higher volumes can become significant with per-message/user costs
  • Con: Enterprise features like advanced security and support require custom quotes
  • Con: Requires technical integration for full utilization of developer tools

Key features

Send messages across email, SMS, push, chat, and in-app Drag-and-drop editor for messaging journeys Global styles, layouts, reusable blocks, and live previews for on-brand messaging Preference centers and send windows for user-first controls In-app messaging with custom components (paywalls, dialogs, nudges) Real-time data ingestion from product, warehouse, CDP, and reverse ETL sources

OneSignal OneSignal

Customer messaging platform for push and more

Good value

OneSignal offers a very generous free tier, allowing up to 10,000 subscribers, which is excellent for startups and small projects.

Strengths

  • Pro: Generous free tier
  • Pro: Easy to implement
  • Pro: Multi-channel support
  • Pro: Good documentation
  • Pro: Affordable paid plans

Weaknesses

  • Con: Less sophisticated than Braze
  • Con: Limited analytics
  • Con: Basic segmentation
  • Con: Support can be slow

Key features

Push notifications (web & mobile) Email messaging SMS messaging In-app messaging Segmentation A/B testing

Plans and prices: Knock vs OneSignal

Plans and prices of Knock and OneSignal, as read on each vendor's pricing page. Each plan keeps its own billing unit.
Tool Plans and prices Source
Knock
  • Developer: Free
  • Starter: $250/user/mo, billed monthly
  • Enterprise: Custom pricing
knock.app/pricing read Oct 12, 2026
OneSignal
  • Free: Free
  • Growth: $99/mo, billed monthly
  • Professional: $249/mo, billed monthly
  • Enterprise: Custom pricing
onesignal.com read Oct 14, 2026

Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Knock pricing and OneSignal pricing.

Key Takeaways

Knock

  • Choose if you want customer engagement infrastructure for product-led growth, enabling cross-channel messaging and data activation

OneSignal

  • Lower entry price: $99/mo, billed monthly vs $250/user/mo, billed monthly

What the data shows

On the data below, OneSignal leads on lower entry price. We do not name an overall winner for this pair.

  • Only Knock has a published user rating (4.6/5 from 148 reviews); OneSignal has none we can show.
  • OneSignal has the lower entry price: $99/mo, billed monthly (Growth) against $250/user/mo, billed monthly (Starter) for Knock.
  • Both have a free plan.

Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate

Frequently Asked Questions

How do Knock and OneSignal compare in 2026?

On the data below, OneSignal leads on lower entry price. We do not name an overall winner for this pair. Only Knock has a published user rating (4.6/5 from 148 reviews); OneSignal has none we can show. OneSignal has the lower entry price: $99/mo, billed monthly (Growth) against $250/user/mo, billed monthly (Starter) for Knock. Both have a free plan.

What are Knock and OneSignal used for?

Knock: Customer engagement infrastructure for product-led growth, enabling cross-channel messaging and data activation. OneSignal: Customer messaging platform for push and more.

What does Knock cost vs OneSignal?

Knock's cheapest paid plan is Starter at $250/user/mo, billed monthly; it also has a free plan. OneSignal's cheapest paid plan is Growth at $99/mo, billed monthly; it also has a free plan. Prices read on the vendors' pricing pages, latest check Oct 14, 2026.

What's the main difference between Knock and OneSignal?

Knock's main strength: comprehensive cross-channel messaging capabilities. OneSignal's main strength: generous free tier.

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