Effective date: May 6, 2026
These Terms of Service (the “Terms”) govern your use of the Quartz mobile application (the “App”), provided by Quartz (“we”, “us”). By creating an account, downloading, or using the App, you agree to these Terms. If you do not agree, do not use the App.
You must be at least 13 years old (or the age of digital consent in your jurisdiction) to use the App. By using Quartz you represent that you meet this requirement.
You are responsible for the security of your credentials and for all activity under your account. Notify us immediately at hello@quartzapps.com if you suspect unauthorised access. You may delete your account at any time from Profile → Settings → Delete Account.
You agree not to:
Quartz uses AI to identify watches and aggregates public marketplace data to estimate market value. Identifications and valuations are best-effort and provided for informational purposes only. They are not appraisals, investment advice, or a guarantee of authenticity. Always consult a qualified professional before making any purchase, sale, or insurance decision.
Quartz offers an optional auto-renewable subscription (“Quartz Premium”) that unlocks additional features such as higher scan limits, condition reports, and market insights. Subscription details:
You retain ownership of the photos and other content you submit. By submitting content you grant us a limited, worldwide, royalty-free licence to host, process, and display that content solely to operate the App for you. We do not use your submissions to train any AI model.
The App, including its design, code, branding, and content (other than your own user content) is owned by us or our licensors and is protected by intellectual property laws. We grant you a personal, non-transferable, non-exclusive, revocable licence to use the App in accordance with these Terms.
The App relies on third-party services, including Apple, Supabase, RevenueCat, Amplitude, Groq, Google Cloud Vision, Firecrawl, eBay, Wikimedia Commons, and other public reference sources. Your use of those services or third-party content may also be subject to their terms. We are not responsible for third-party services or content.
We may suspend or terminate your access to the App if you breach these Terms or if your use creates a security or legal risk. You may stop using the App at any time and delete your account from inside the App.
The App is provided “as is” and “as available” without warranties of any kind, whether express or implied, including warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement. We do not warrant that the App will be uninterrupted, error-free, or that any identification or valuation will be correct.
To the maximum extent permitted by law, neither we nor our suppliers will be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of profits, revenues, data, or goodwill, arising out of or in connection with your use of the App. Our total aggregate liability for any claims arising out of these Terms or the App will not exceed the greater of (a) the amount you paid us in the twelve months preceding the claim, or (b) USD 50.
We may update these Terms from time to time. Material changes will be announced inside the App or by email. Continued use of the App after the effective date of the updated Terms means you accept them.
These Terms are governed by the laws of the jurisdiction in which we are established, without regard to its conflict-of-laws rules. Mandatory consumer protection rules of your country of residence still apply.
Questions about these Terms? Email hello@quartzapps.com.