Website blocking

Concentration review, pricing and alternatives

Blocks distracting websites on Chrome.

Free Free option Rating 4.5/5 0 reviews Updated Feb 20, 2026

Decision Snapshot

Free Free option Website blocking

Fast view for buyers comparing price, category, rating and practical fit before opening the vendor website.

Best For

  • Teams comparing AI tools for a clear business use case
  • Users who want a practical tool before committing budget

Not Best For

  • Buyers who cannot accept: check current limits, pricing and support directly on the vendor website
  • Teams that need verified compliance documents before shortlisting
  • Users who need final pricing without visiting the vendor website
  • Buyers who need hands-on onboarding from day one
Original Buyer Guide

Should you shortlist Concentration?

Concentration should be considered if your main requirement matches Website blocking and you are comfortable with a free pricing model. Do not judge it only by headline rating; compare workflow fit, export needs, privacy expectations and support requirements.

Choose it when the listed features match your daily workflow. Compare alternatives if pricing limits, exports or team access are unclear. Verify final price, cancellation and data terms on the vendor website. Save and compare before starting a paid plan.
New listing signalsSaved, compared, visit and user review counts will appear after real buyer activity grows.
MediumData confidence 70/100Freshness score Oct 11, 2026Pricing checked Admin/user checkedVerification source
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Data Freshness

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70 Medium confidence Fresh
Listing checkedOct 11, 2026 Pricing checkedOct 11, 2026 Company verifiedNot verified

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Pricing Clarity

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Free

FreePricing model
Free optionStarting point
4.5/5Buyer rating

Key Features

  • Concentration is a Chrome extension designed to improve users' concentration levels during their study or work time by blocking distracting websites. Powered by ChatGPT
  • it utilizes natural language processing (NLP) and ChatGPT to optimize its performance and accuracy. The tool is completely free to use and does not require payment for ChatGPT.To get started with Concentration
  • users need to enable the extension and open the popup page. They can then enter keywords representing categories of websites they would like to block
  • such as gaming or movie. They can submit each keyword entered or remove all existing keywords. Additionally
  • users have the option to switch between Strict Mode (NLP-based
  • faster but less accurate) and GPT Mode (ChatGPT-based

Pros

  • Easy to evaluate from the public listing
  • Useful category and pricing signals for quick comparison

Cons

  • Check current limits, pricing and support directly on the vendor website

Disclosure: outbound website links may be tracked or sponsored when a company has configured an affiliate or paid placement.

Compare Concentration with top alternatives

Compare by category fit, free plan availability, price and review strength.

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Concentration vs PRWireNOW's Press Release Generator Freemium · 4.8/5 Concentration vs Zoho Sheet Freemium · 4.8/5 Concentration vs Sora by OpenAI Freemium · 4.8/5

Similar tools

No matching alternatives found yet.

Free alternatives

PRWireNOW's Press Release Generator

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The PRWireNOW AI Press Release Generator helps businesses and startups quickly turn announcements into structured press releases. By entering key details such as company name, announcement topic, and keywords, the AI press release writer generates professional ideas and headlines that help shape your announcement into a clear news story.

Freemium 4.8/5 0 reviews
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Zoho Sheet

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Collaborative data analysis.

Freemium 4.8/5 0 reviews
New buyer signals collecting

Sora by OpenAI

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The most advanced text to video AI.

Freemium 4.8/5 0 reviews
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Cheaper alternatives

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Buyer Checklist

Check these before final decision

This helps new users avoid choosing a tool only from the headline rating.

Trial and credit limits Export and watermark rules Data privacy and retention Team seats and admin controls API and integrations Support and cancellation terms

FAQs

What is Concentration best for?

Concentration is best for Teams comparing AI tools for a clear business use case, Users who want a practical tool before committing budget.

Is Concentration free?

Concentration is listed as Free. Free

What should I check before choosing Concentration?

Check pricing limits, data privacy, export options, team seats, support response and cancellation terms before subscribing.

What are good alternatives to Concentration?

Good alternatives to compare include PRWireNOW's Press Release Generator, Zoho Sheet, Sora by OpenAI.

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