Terms of Service

Penshift is a web application that paraphrases, humanises, summarises, translates, grammar-checks, and analyses text the user provides. Outputs are generated by third-party machine-learning providers acting as our processors. Penshift does not guarantee that outputs are accurate, original, suitable for any specific purpose, or free of errors.

You must create an account to use most features. You are responsible for keeping your credentials secure and for all activity under your account. You must be at least 13 years old (or older if your local law requires) to create an account. You may not share your account, resell access, or use the service on behalf of another person without our written permission.

You agree not to use Penshift to:

• commit academic dishonesty, misrepresent authorship, or violate the policies of an institution that requires original human work;
• generate, paraphrase, or humanise content that is unlawful, defamatory, harassing, infringing, fraudulent, or invades another person's privacy;
• scrape, reverse-engineer, or attempt to extract our prompts, models, or system internals;
• circumvent quotas, share API access, or use automation to exceed fair use of free or paid plans;
• build a competing service using our outputs as training data; or
• upload personal data of others that you do not have a lawful basis to share with us.

We may suspend or terminate accounts that breach these rules, with or without notice.

Free accounts are available subject to the daily caps shown on the pricing page. Paid plans (Pro, Studio) are billed in advance, monthly or annually, in US dollars, by our payment processor. Prices and caps are listed at penshift.app/#pricingand may change with at least 14 days' notice for existing subscribers. You authorise us to charge your payment method for the recurring fee until you cancel.

You may cancel a paid plan at any time from your account; your plan remains active until the end of the current billing period. You may request a refund of the most recent payment within 30 days of that payment by emailing hello@penshift.com. We may decline refund requests where we have reason to believe the service has been abused (for example, hitting the daily cap and immediately requesting a refund). After 30 days, payments are non-refundable.

You retain all rights to text you submit to Penshift (“Input”) and to outputs generated from it (“Output”). By submitting Input you grant us a limited, non-exclusive, worldwide licence to process it solely to deliver the service. We do not store Input or Output beyond what is needed to render the immediate response, and we do not use either to train any machine-learning model.

The Penshift name, logo, website design, and underlying software are owned by Penshift LTD. We grant you a limited, revocable, non-exclusive licence to access and use the service while these Terms are in force. No other licence is granted, expressly or by implication.

Penshift uses third-party services to deliver functionality, including authentication (Clerk), payment processing, hosting (Vercel), and machine-learning inference. Your use of Penshift is also subject to those providers' terms where they apply directly to you. We are not responsible for the acts or omissions of third parties.

Penshift is provided “as is” and “as available” without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, accuracy, or non-infringement. We do not warrant that the service will be uninterrupted, secure, or error-free, or that AI-detection scores or plagiarism scans will be accurate.

To the maximum extent permitted by law, Penshift LTD's total liability arising out of or relating to these Terms or the service is limited to the greater of (a) the fees you paid us in the twelve months before the event giving rise to the claim, or (b) US $100. We are not liable for indirect, incidental, special, consequential, or punitive damages, including lost profits, lost data, or business interruption. Some jurisdictions do not allow these limits — in that case, the limits apply only to the maximum extent permitted.

You agree to indemnify and hold Penshift LTD harmless from any claim, loss, or liability (including reasonable legal fees) arising out of your Input, your Output, your breach of these Terms, or your violation of applicable law or third-party rights.

You may stop using Penshift at any time. We may suspend or terminate your account if you breach these Terms or if we are required to by law. On termination, your right to use the service ends immediately; sections that by their nature should survive (intellectual property, disclaimers, liability, indemnity, governing law) will survive.

We may modify the service at any time. We may amend these Terms by posting the updated version and changing the “last updated” date; material changes that affect your subscription will be notified by email at least 14 days before they take effect. Continued use after the effective date constitutes acceptance.

These Terms are governed by the laws of England and Wales. Any dispute will be resolved exclusively by the courts of England and Wales, except where applicable consumer law gives you a right to bring a claim in your country of residence.

Questions about these Terms: hello@penshift.com. Penshift LTD is a private limited company registered in England and Wales.