Data-use terms and product scope matter before comparing detector features.
Copyleaks provides a readable recurring allowance with documented training and sharing controls. Plagiarisma’s website and Docs add-on have different access conditions, and its terms characterize submissions as non-confidential. Evaluate authorized, non-sensitive text only after understanding those boundaries; no accuracy winner is established. [1] [6] [3] [5]
| THE DETAILSFind your fit. | CopyleaksRead research review | PlagiarismaRead research review |
|---|---|---|
| Main workflow | Text plagiarism and AI-analysis reports. This comparison does not assess the accuracy of either detector. [1] | Website text-match checks, with a separate Google Docs add-on that advertises other writing tools. Accuracy and AI-detection claims have not been tested. [2] [3] |
| Free starting point | Start-for-free access is advertised; a continuing free credit allocation was not established. [1] | Website free use is advertised. The separate Docs add-on lists five document scans per day; do not apply that allowance to the website. [2] [3] |
| Paid billing model | Personal: $16.99/month or $167.88 billed annually ($13.99/month equivalent). Confirm checkout currency. [1] | Paid features are advertised, but amount and currency remain unverified. General terms describe monthly renewal; the FAQ’s three-day premium refund excludes trial orders. [3] [4] [5] |
| Supported text workflow | Multiple-file upload, browser extension and Google Docs integration are listed. [1] | Website accepts pasted text, URL or supported documents. The Docs add-on requires installation and account permissions. [2] [3] |
| Usage limits | 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. [1] | Docs add-on permissions include managing installed-in documents, connecting to an external service and sending email as the user. Exact website quotas are unresolved. [3] [2] |
| Uploaded material | Policy describes model training with a support-based opt-out. Shared Data Hub has separate controls; matching passages may be visible to other users. [6] | Terms characterize submitted content as non-confidential. The privacy policy retains personal data as needed and has deletion exceptions; a precise scan-retention or training policy remains unresolved. [5] [7] |
| Use and result limitations | Terms prohibit pornographic use and require rights to submitted content. General adult-business eligibility is not established. [8] | Terms prohibit obscene/unlawful submissions and require rights to content. This is not an endorsement for confidential uploads or unverified adult-business use. [5] |
| Affiliate status | Public Awin offer claims 15% recurring customer-lifetime commission, a 30-day cookie and US$50 payout threshold. ATN acceptance is unverified. [9] | No current official cash commission was established. Older indexed FAQ references did not persist in the current retrieved FAQ; no tracking link or enrollment is implied. [4] |
| Consider it forATN assessment | A recurring, permitted editorial workflow where the shared credit budget and upload controls have been checked first. [1] [6] [8] | Evaluating possible overlap in authorized, non-confidential text with manual source review, after checking the exact website or add-on workflow. [2] [3] [5] |
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.
Copyleaks uses shared credits, while Plagiarisma’s add-on advertises five free document scans daily. A document count and a word-based credit budget are different units. The missing Plagiarisma premium quote prevents a complete paid-cost comparison. [1] [3]
Plagiarisma’s add-on requests document, external-service and email permissions. Copyleaks describes training opt-out and Shared Data Hub controls. Installation consent and processing policy are separate checks; neither should be inferred from a free-access label. [3] [6]
Plagiarisma’s non-confidential-submission terms are a material limitation. Copyleaks imposes content restrictions and requires upload rights. A matching result still needs human interpretation; a detector output does not establish ownership or misconduct. [5] [8]
Research based · No hands-on testing or numeric scores · Direct links, no affiliate tracking. Our editorial standards
Browse content-protection resourcesA sentence-based annual bundle and a word-metered search require different cost calculations.
Read comparisonCREATE + BUILD / Text duplication checksCompare sentence checks, unified credits and the separate choices about submitted text.
Read comparisonCREATE + BUILD / Text duplication checksSeparate website checks, installed add-ons and differently scoped subscription offers.
Read comparisonCREATE + BUILD / Text duplication checksCompare metered searches with distinct website and Docs add-on workflows.
Read comparisonCREATE + BUILD / Text duplication checksCompare prepaid text searches with a recurring credit allowance and its data controls.
Read comparison