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Privacy Policy

Last updated 10 October 2026

Syster is a small business run by one person, selling printable and print-on-demand designs. This policy covers the Syster website, shop, and our social media presence on Facebook and Instagram (including the tools we use to manage them).

What we collect and why

The Brain Dump prompts

The prompts build a system inside your own Notion account. What you put into that system stays there. It never comes to us and we never see it.

To build your prompt, the questions on this site ask you a few things. Some are multiple choice, some are a box you type into. The answers are used to write your prompt and are not kept, with one exception.

If you tick the optional box before your prompt is built, the multiple choice answers you picked are kept, so the prompts can be made better for the next person. That means only the options you chose off a list. It never includes anything you typed, your name, or your email.

Where we have your email address, it is turned into a code before anything is stored, using a secret that only our database holds. The code is what gets kept, not your address, and it cannot be turned back into your address by us or by anybody else. It lets us see that the same person answered two different sets of questions, which is what makes the answers useful. We are calling that what it is rather than calling it anonymous.

Because that code can be worked out again from your email address, we can find and delete everything belonging to you if you ask. See Data deletion below.

Leaving the box unticked keeps nothing at all, and your prompt is exactly the same either way. Nothing kept this way is ever sold or shared, and it is not used to train any AI model. Some modules do not offer the box at all, because their questions sit in a context where even a multiple choice answer is nobody else's business.

What we don't do

Where data lives

Our systems run on Shopify (shop), Netlify (websites), Supabase (order delivery and business tools), Bitly (short links) and Meta's platforms (Facebook and Instagram). Each processes data under its own privacy terms.

Data deletion

To have anything we hold about you deleted (an order record, a logged comment interaction, answers you let us keep, anything else) email contact@syster.info from the account involved and it will be removed within 14 days. This is also the contact for any questions about this policy.