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Copyleast pricing

Choose how
you want to check.

Start with free daily access, pay once for a balance that does not expire, or choose a fixed 30-, 90- or 365-day package. Exact prices and quotas appear in the package selector.

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Exact prices, plagiarism quotas and AI quotas are shown before purchase. One-time packages do not renew automatically.

Flexible access

Pay once, or choose a fixed period.

One-time packages suit occasional checking. You pay once, the unused balance remains available and the package never renews automatically.

Period packages suit regular checking over 30, 90 or 365 days. Their quotas apply only during the selected period and do not roll over.

When recurring billing is available, it is a separate option and is not selected automatically.

Choose an access model based on how often you check, not on a forced subscription.

What you can review

Clear reports, without mixing the results.

Depending on the selected analysis and available package, a report may include highlighted source matches, available URLs, similarity details, AI probability, Total AI rate, sentence-level indicators, PDF export and a shareable link.

Plagiarism and AI results remain separate because they answer different questions.

Pricing FAQ

Pricing and access, explained.

Without registration, you can check up to 150 words per day. After registration, you receive a one-time allowance of 1,000 words and a daily allowance of 300 words. The free allowance is shared between plagiarism and AI checks, and the one-time and daily allowances should not be treated as a guaranteed combined first-day total.
A one-time package is paid once, does not renew and keeps its unused balance without an expiry date. A period package lasts 30, 90 or 365 days, and unused quota does not roll over after the selected period ends.
No. A one-time package is paid once and never renews automatically.
Recurring billing may be offered for an eligible period package through a separate toggle that is not selected by default. Turning it off prevents the next renewal, while the current package remains active until the end of the paid period.
Copyleast accepts Visa, Mastercard and PayPal. Prices are shown in USD.
Consumer withdrawal rights may apply for 14 days. A paid package is treated as used only after a successful paid check deducts quota. Separate voluntary refund rules apply to wholly unused packages and unused latest renewals. Statutory rights remain unaffected; see the Terms of Service for full details. Read the Terms of Service.

Still have a question? Contact support

Start free, then choose what fits.

Use up to 150 words a day without an account. When you need more, choose a one-time or fixed-period package.

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No card for free access · one-time packages do not expire · recurring billing is optional