Privacy policy

Julien Boyer, 185 Chemin de l'Aubespy, Saint-Pierre-la-Roche, France, is responsible for your data. Contact: [to be added].

• Your account: your name, email address and profile picture, received from Google when you sign in.
• What you send to Synthyze: the text, address and title of the pages you summarize or save, and the summaries, highlights, notes, folders and tags you create.
• Your session: your IP address and browser type, kept with your sign-in session for security.
• Your credits and payments: your credit balance and history, your subscription status and a Stripe customer reference. Card details are handled by Stripe and never reach Synthyze.
• Product usage: the pages you visit and the buttons you use on the website and in the extension, and events such as a summary being generated or a subscription starting. They are linked to an internal identifier, never to your email. Some visits may be recorded to improve the product, with everything you type hidden.
• Free credit check: a one-way fingerprint of your email address, so the 5 free summaries can be claimed only once per person. It cannot be turned back into your email.

• To provide the service you signed up for: summaries, library, account and credits. Legal basis: the contract between us.
• To take payments and keep invoices. Legal basis: the contract and accounting obligations.
• To keep the service secure, prevent abuse of free credits and understand how the product is used, in order to improve it. Legal basis: legitimate interest.

Synthyze does not sell your data, does not show ads and never uses your content for advertising.

Only with the providers Synthyze needs to run, each bound to protect your data:

• Google, for sign-in.
• Vercel Inc., which hosts the website.
• [to be added], which hosts the database.
• OpenAI, which runs the AI model: the text of the page you summarize is sent to it to write the summary. Under OpenAI's API terms, this text is not used to train its models, and may be kept up to 30 days to detect abuse.
• Stripe, for payments and invoices.
• PostHog, for usage statistics, hosted in the European Union.

Some of these providers are based in the United States. These transfers rely on the EU-U.S. Data Privacy Framework or on the European Commission's standard contractual clauses.

• Your account and library: as long as your account exists. Deleting your account erases them.
• Summaries in the trash: deleted for good after 30 days.
• Saved pages: until you summarize or delete them.
• Sessions: until you sign out or they expire.
• Invoices: kept by Stripe for as long as accounting law requires, 10 years in France.
• The free credit fingerprint: kept after your account is deleted, only to prevent free credits from being claimed twice.

Synthyze uses only the cookie that keeps you signed in. There are no advertising cookies. Usage statistics keep an anonymous identifier in your browser's local storage, used only to measure how Synthyze is used, never for advertising.

You can access, correct, export or delete your data, object to its use, or ask for its use to be limited. You can delete your account and all its data at any time from your Account page.

For anything else, write to [to be added]. You will get an answer within one month. If you think your rights are not respected, you can file a complaint with the CNIL (cnil.fr), the French data protection authority.

Synthyze is not meant for children under 15. Under 15, a parent or guardian must agree to its use.

If this policy changes in a meaningful way, you will be told by email or in the app before the change applies.