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Copyscape vs Copyleaks.

Compare prepaid text searches with a recurring credit allowance and its data controls.

THE ATN TAKE · EDITORIAL ASSESSMENT

Copyscape suits evaluating occasional text matches with metered searches; Copyleaks packages repeated checks and additional analysis in a subscription. Estimate the same set of documents and rechecks for each. Privacy controls, permission to submit the text and human review matter more than an unverified detector-accuracy claim. [1] [2] [3] [5]

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Text duplication checksOfficial sources · Sep 30, 2026
Copyscape compared with Copyleaks
THE DETAILSFind your fit.CopyscapeRead research reviewCopyleaksRead research review
Main workflowFind matching web text for an existing page or a submitted draft. [1] [2]Text plagiarism and AI-analysis reports. This comparison does not assess the accuracy of either detector. [3]
Free starting pointPublic-URL searches return up to ten results, with additional scan limits. [2]Start-for-free access is advertised; a continuing free credit allocation was not established. [3]
Paid billing modelPremium prepaid searches: 3 cents for the first 200 words, then 1 cent per additional 100 words or part. Confirm currency and minimum purchase before paying. [1] [2]Personal: $16.99/month or $167.88 billed annually ($13.99/month equivalent). Confirm checkout currency. [3]
Supported text workflowPremium accepts pasted text and PDF/Word documents, plus URL batches and the documented API. [1]Multiple-file upload, browser extension and Google Docs integration are listed. [3]
Usage limitsBatch Search supports up to 10,000 pages per operation; each page and API request is billed as an individual search. [2]Personal has 100 unified credits per month: up to 25,000 words OR 100 images. Plan changes replace the current plan and can forfeit remaining credits. [3]
Uploaded materialPrivate Index is a product feature, not proof of a complete retention policy. The FAQ’s privacy link returned terms; upload retention and reuse remain unresolved. [2] [4]Policy describes model training with a support-based opt-out. Shared Data Hub has separate controls; matching passages may be visible to other users. [5]
Use and result limitationsResults can miss unindexed content and do not certify ownership. Only the documented API permits automated querying. Adult-business permission was not established. [4]Terms prohibit pornographic use and require rights to submitted content. General adult-business eligibility is not established. [6]
Affiliate statusNo public commission program was verified in the official pages or the targeted official-site search. No tracking link or application was created. [1] [2]Public Awin offer claims 15% recurring customer-lifetime commission, a 30-day cookie and US$50 payout threshold. ATN acceptance is unverified. [7]
Consider it forATN assessmentOccasional permitted text searches where metered use fits better than a recurring allowance. Review matches before drawing conclusions. [1] [2] [4]A recurring, permitted editorial workflow where the shared credit budget and upload controls have been checked first. [3] [5] [6]

For non-graphic editorial and business text you are authorized to submit. Similarity reports need human review; they do not prove ownership, plagiarism, AI authorship or a successful takedown. No accuracy testing has been performed. A feature listing does not establish adult-business permission.

Sources behind this comparison 7 official pages
  1. Copyscape — Premium features and search pricing (opens in a new tab)Checked Sep 30, 2026
  2. Copyscape — search limits and billing FAQ (opens in a new tab)Checked Sep 30, 2026
  3. Copyleaks — current plans and credits (opens in a new tab)Checked Sep 30, 2026
  4. Copyscape — terms and result limitations (opens in a new tab)Checked Sep 30, 2026
  5. Copyleaks — privacy and sharing controls (opens in a new tab)Checked Sep 30, 2026
  6. Copyleaks — service and upload terms (opens in a new tab)Checked Sep 30, 2026
  7. Copyleaks — public affiliate offer (opens in a new tab)Checked Sep 30, 2026

How to choose

Count each billable scan

Copyscape meters words in each search, including each page in a batch. Copyleaks uses a shared credit allowance, and changing plans can forfeit unused credits. Compare your real monthly workload and repeat checks, not a per-search amount with a monthly headline. [2] [3]

Resolve upload handling

Copyscape’s private-index feature does not resolve the missing retention policy. Copyleaks documents training and Shared Data Hub controls separately, including possible visibility of matching passages. Review those controls before submitting confidential client or creator drafts. [1] [4] [5]

Review evidence before acting

Copyscape disclaims ownership certification and complete detection. Copyleaks’s terms restrict pornographic use and require upload rights. A match is a reason to inspect the original context and permissions; it is not an automatic accusation, authorship finding or removal outcome. [4] [6]

Research based · No hands-on testing or numeric scores · Direct links, no affiliate tracking. Our editorial standards

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