Privacy Policy

Last updated: 28 August 2026

1. Who is responsible

Monjurul Islam, trading as Fiber & Flow, of 14/2E Docklands Business Centre, 10-16 Tiller Road, London, E14 8PX, is the data controller for the information described here. Questions, requests and complaints go to support@fiberandflow.com.

2. What this site collects by itself

Almost nothing. There is no account system, no login, no advertising, no tracking pixel and no third-party embed. Browsing the site does not create a record of you.

The two places you can hand over information are both deliberate:

Buying a guide. Checkout happens on Lemon Squeezy's own pages. They collect your email and billing details, and pass us your email address and what you bought so we can deliver the files and answer questions about the order. We never receive your card number.
Asking to be told about the app. If you enter your email in the notify box, we store that address to email you once, when the app is ready. It is not added to any other list and it is not used for marketing.

3. Why we are allowed to hold it

Your order: to perform the contract you entered into.
Tax and accounting records: a legal obligation.
The notify list: your consent, which you can withdraw at any time by asking.

4. Who else sees it

The only companies involved are the ones needed to run the shop:

Lemon Squeezy — takes payment, sends the files, and handles the tax for your country.
Buttondown — sends the one notify email, if you sign up for it.
Vercel Inc. — serves this site. Their server logs may briefly hold IP addresses as a normal part of running a web server.

We do not sell your information, and we do not share it with anyone for advertising.

5. Cookies

This site sets no cookies of its own and there is nothing to consent to, which is why you were not shown a banner. Lemon Squeezy's checkout, on their own domain, sets what it needs to take a payment and explains that in their own policy.

6. How long it is kept

Order records are kept for six years, because tax law requires it. Notify addresses are deleted once the launch email has gone out, or sooner if you ask. Support emails are kept for two years and then deleted.

7. Your rights

Under UK GDPR you can ask us to:

tell you what we hold about you, and give you a copy;
correct anything wrong;
delete it, where we are not legally required to keep it;
stop using it for something you consented to;
send it to you or someone else in a portable format.

Write to support@fiberandflow.com and we will respond within one month. You never have to pay for this.

If you are unhappy with how we handle it, you can complain to the Information Commissioner's Office at ico.org.uk or on 0303 123 1113. We would appreciate the chance to fix it first.

8. Children

These guides are written for adults and the shop is not directed at children. We do not knowingly collect information from anyone under 16.

9. A note on what you write in the guides

The guides are fillable PDFs. Everything you type into them — what you have eaten, how you have felt, anything else — is saved in the file on your own device. None of it is sent anywhere. We cannot see it, and there is no mechanism by which we could.