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Customer.io

Push Messaging

Knock

Push Messaging

Popular to compare with Customer.io

Comparison of Customer.io, Knock
Customer.io
Visit website
Knock
Visit website
CategoryPush MessagingPush Messaging
PricingFree trial14-day free trial–
Platforms
  • Web
  • API
  • Web
  • API
Best for
  • Marketing teams
  • Product teams
  • Growth teams
  • Developers
  • Product teams
  • Growth teams
Highlights
  • Build automated journeys triggered by user actions
  • Segment audiences from customer data
  • Design messages in a visual studio
  • Build workflows with triggers, delays and branches
  • Send email, in-app, push, SMS and chat messages
  • Run an agent step to personalize content

FAQ

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Quick answers about the directory, listings and your privacy.

  • Web Tools Finder (WTF) is a curated directory built by developers and designers for web developers, designers, vibe coders, and freelancers. It brings useful tools and resources together in one place, helping you save time, discover better resources, and bookmark your favorites for free, without signing up.

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  • Yes, it is free. Browsing, searching and saving tools need no account. Your saved tools are kept in your browser on this device, so they are not shared between devices.

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  • You can discover AI tools, development resources, UI/UX design tools, graphics, website inspiration, open-source projects, learning materials, freelance resources, and more. We're also expanding into useful communities and groups to help you connect, learn, and grow.

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  • Use the Search Directory, or press Ctrl K (Cmd K on a Mac) to search from any page. Each section lists its tools by category, and when tools have pricing details you can filter by price, such as Free, Freemium or Paid. Open a tool to read its description, highlights and details, and save the ones you like.

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  • It shows how many tools were added to that section in the last 7 days. The label disappears once you open the section.

  • The AI Prices page is checked every day against two independent public sources, and a price is listed only when both agree. Prices can change at any time, so always confirm with the provider before you build on a price.

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  • They come from GitHub star counts, which refresh automatically every day. Stars show how popular a project is, not how good it is for your project.

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  • Yes! You can submit your tool, resource, or agency through our submission options. Our team reviews each submission according to our listing guidelines and policies. We'll contact you regarding the review, eligibility, and next steps before your listing is published.

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  • They mark paid or partner placements. Those listings are not recommendations from Web Tools Finder, and they are labelled clearly so you can tell them apart from the rest of the directory.

  • Featured spots can be arranged on the Home page, in each section and on the Agencies and Deals pages. Get in touch through the contact page and tell us what you would like to promote. Featured and sponsored placements are always labelled.

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  • Use the Feedback button in the menu and choose Something is broken, or write to us from the Contact page. We also check tool links regularly and review the ones that stop working.

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