Terms of Service

Last updated: 8 July 2026

These terms govern your use of Quell. Please read them alongside our Privacy Policy and Refund Policy.

1. Who we are

Quell is a trading name of Rain Ventures Limited, a company registered in England and Wales (company number 16041437, VAT registration number GB 492 9409 50). Registered office: 71–75 Shelton Street, Covent Garden, London WC2H 9JQ. In these terms, "Quell", "we", and "us" mean Rain Ventures Limited.

These Terms of Service ("Terms") govern your access to and use of the Quell software, websites, APIs, command-line tools, and related services (the "Service"). By creating an account, accessing, or using the Service you agree to these Terms.

Quell is a software-as-a-service product and a self-hostable application. It is not a consulting, agency, or done-for-you service. Questions: [email protected].

2. The Service

Quell provides an agent-native feedback platform: a browser widget that captures feedback together with context (screenshots, console logs, network activity, and page state), an admin inbox for triage, and a REST API, CLI, and MCP server so coding agents can read that context and help resolve issues.

Quell is available as a hosted cloud subscription and as a self-hosted application. Self-hosting is provided free of charge under its published licence; these Terms govern the hosted cloud Service and your account with us.

3. Accounts, seats, and credentials

You are responsible for your account, the seats and API keys issued under it, and all activity that occurs through them. Keep credentials (passwords, API keys, widget tokens) secure and notify us promptly of any suspected compromise. You must be at least 18 and authorised to bind your organisation.

4. Acceptable use

You agree not to misuse the Service. In particular, you will not:

5. Your data, end-user content, and ownership

As between you and us, you own the feedback and other content you submit to the Service ("Customer Data"). You grant us a limited licence to host, process, and transmit Customer Data solely to provide and secure the Service.

Customer Data includes content submitted through your widget by your end users or members of the public, whose identity you control — not us. You are responsible for that content, including reviewing, moderating, and responding to it, removing anything unlawful, and meeting any legal obligations relating to it. We do not pre-screen, monitor, endorse, or accept responsibility for content submitted by your users or other third parties, and any views expressed in it are theirs, not ours. We may remove, or refuse to process, content we reasonably believe is unlawful, abusive, or in breach of these Terms.

Where the widget captures information about your end users on your behalf, you act as the data controller and we act as your processor. Our handling of personal data is described in our Privacy Policy.

Data processing addendum. For that processor relationship we make a Data Processing Agreement available on request (contact [email protected]). It records our Article 28 commitments: processing only on your instructions, confidentiality, the security measures in section 10, our authorised sub-processors (currently Hetzner, Supabase, Cloudflare, Resend, Purelymail, Stripe, PostHog EU, and — where you enable them — GitHub and Linear, with 30 days' notice of changes), assistance with data-subject requests, breach notification without undue delay, and deletion or return of data on termination. International transfers, where any, rely on Standard Contractual Clauses. We provide operator tooling to export and delete a data subject's feedback by email or id on your instruction.

Cookies and consent. The Service uses only strictly necessary cookies (a session cookie and a CSRF token), which are exempt from consent under PECR; we use no advertising or cross-site tracking cookies. Full detail is in our Privacy Policy, which forms part of these Terms.

6. Billing and subscriptions

Paid plans are billed as a flat per-seat subscription, monthly or annually, in advance. Rain Ventures Limited is the seller of record for your purchase and accounts for applicable taxes, including VAT (VAT registration number GB 492 9409 50). Advertised prices are exclusive of VAT; where VAT applies it is calculated and shown at checkout. If you are buying for a VAT-registered business, you can enter your VAT number at checkout. Card payments are processed by Stripe, our payment processor — Stripe collects and stores your card details on our behalf; we never receive or store them ourselves.

Subscriptions renew automatically for the same period until cancelled. You can cancel future renewals at any time from your account or by contacting us. We may change prices with reasonable advance notice, effective from your next renewal.

When your subscription ends — whether you cancel it or a renewal payment ultimately fails — your paid access continues until the end of the period you have already paid for (and, for a failed payment, through any retry period we allow), after which access to paid features ends, subject to any grace period we may offer at our discretion.

7. Refunds

Refunds are governed by our Refund Policy, which forms part of these Terms. Your statutory cancellation rights are administered by us at checkout; in addition, we offer a goodwill money-back guarantee for cloud subscriptions that have not been materially used. Self-hosting is free and no charge arises.

8. Availability and support

We work to keep the Service available and performant, but it is provided on a commercially reasonable, best-effort basis. We may carry out maintenance and will aim to give notice of significant planned downtime. Free and self-hosted use carries no service-level commitment.

9. Intellectual property

We and our licensors own all rights in the Service, including the software, branding, and documentation, except for Customer Data and the open self-host distribution which is licensed separately. We grant you a non-exclusive, non-transferable right to use the hosted Service during your subscription.

10. Third-party services and open source

The Service integrates with third-party services you choose to connect (for example GitHub, Linear, and your own AI coding agent) and includes open-source components under their own licences. Your use of a connected third-party service is governed by that provider's terms, and we are not responsible for those services. You are responsible for your own use and costs of any AI agent you connect — Quell adds no token charge.

11. Trials and beta features

We may offer free trials or features marked as beta, preview, or experimental. These are provided "as is", may change or be withdrawn at any time, and may carry no support or availability commitment. Trials convert to a paid subscription only if you choose to subscribe.

12. Confidentiality

Each party may receive non-public information from the other in connection with the Service. Each party will protect the other's confidential information with reasonable care and use it only to provide or use the Service, except where disclosure is required by law. Your Customer Data is treated as your confidential information.

13. Warranties, indemnities, and limitation of liability

The Service is provided "as is" and "as available" without warranties of any kind, to the fullest extent permitted by law. We do not warrant that the Service will be uninterrupted, error-free, or that automated agent actions will be correct — agent-created issues and pull requests are review-required by design.

Your indemnity. You will indemnify us against third-party claims arising from your Customer Data, your use of the Service in breach of these Terms, or your failure to give your end users the privacy notices the law requires.

Our IP indemnity. We will defend you against a third-party claim that the hosted Service, used as permitted, infringes that party's intellectual-property rights, and cover the resulting costs we are ordered to pay — this is our only liability for infringement, and it is subject to the liability cap below.

Liability cap. To the maximum extent permitted by law, our total liability arising out of or relating to the Service — including under any indemnity in these Terms — is limited in aggregate to the fees you paid to us (via Stripe, our payment processor) in the 12 months before the event giving rise to the claim. We are not liable for indirect, incidental, or consequential losses. Nothing in these Terms limits liability that cannot be limited by law, including liability for death or personal injury caused by negligence, or for fraud.

14. Force majeure

Neither party is liable for failure or delay caused by events beyond its reasonable control, including natural disasters, war or civil unrest, acts of government, and failures of internet, hosting, or upstream providers.

15. Termination

You may stop using the Service and cancel at any time. We may suspend or terminate access for material breach of these Terms or where required by law. On termination you may export your Customer Data for a reasonable period, after which we will delete it in line with our Privacy Policy.

16. Assignment and entire agreement

You may not assign or transfer these Terms without our prior written consent; we may assign them to an affiliate or in connection with a merger or sale of the business. These Terms, together with the Privacy Policy and Refund Policy, are the entire agreement between us regarding the Service and supersede any prior understanding. If any provision is unenforceable, the rest remains in effect.

17. Changes to these Terms

We may update these Terms from time to time. We will post the updated version here and, for material changes, give reasonable notice. Continued use after changes take effect constitutes acceptance.

18. Business use, consumers, and governing law

Quell is intended for business and professional use. If you are a consumer, nothing in these Terms removes or limits your non-waivable statutory rights, and where those rights give you more than these Terms, they prevail.

These Terms are governed by the laws of England and Wales, and the courts of England and Wales have non-exclusive jurisdiction, without affecting any mandatory consumer protections available to you where you live.

19. Contact

Questions about these Terms: [email protected].