Privacy notice: how we use your information

Last updated: 12 November 2026

This notice covers the mathsley.com website. The Mathsley app will have its own privacy notice, written for parents and children, before it launches.

Who we are

Mathsley is run by Optimised Digital Ltd, a company registered in England and Wales, company number 13436027, registered office 153 Sturge Avenue, London, E17 4LF. We're the controller for the information described here.

What we collect and why

When	What we collect	Why, and our lawful basis	How long we keep it
You join the waiting list	Your email address, the date and time you joined, the wording you agreed to, how you heard about Mathsley if you tell us, and which of our links or campaigns brought you to the site	To email you when Mathsley launches and about the founding families offer. Lawful basis: your consent.	Until 12 months after Mathsley launches, or until you unsubscribe, whichever comes first
You register a school's interest	Your name, role, school, work email, school phase, pupil numbers, any message you send, and which of our links or campaigns brought you to the site	To contact you about Mathsley for your school. Lawful basis: your consent.	Up to 24 months, or until you ask us to delete it
You email us	Your email address and what you write	To reply to you. Lawful basis: our legitimate interest in answering messages.	Up to 24 months after our last contact

Please don't send us information about individual children.

The practice tools

The practice on this website, including the times tables, the tables check and the SATs arithmetic papers, runs entirely in your browser. Nothing your child types is sent to us or stored anywhere, and it needs no account.

Cookies and analytics

This website doesn't use cookies, analytics or advertising tools, and it loads no content from other companies. We count clicks on our own short links (such as mathsley.com/go/ig) as a total for each link per day, and record which link or campaign brought someone who signs up, with no cookies and nothing that identifies a visitor. Our hosting provider processes your IP address briefly to deliver the site and protect it from attacks.

Who we share it with

Cloudflare hosts this website and stores the waiting list and school enquiries. The database is held in the European Union.
Google (Google Workspace) provides our mailbox. Emails sent to hello@mathsley.com or schools@mathsley.com are forwarded by Cloudflare Email Routing to our Google Workspace mailbox, where we read and store them. When someone registers a school's interest, the details from the form are also sent to that mailbox as an alert.
We haven't chosen a provider for launch emails yet. We'll name it here before we send any.

We never sell your information or share it for advertising. Cloudflare and Google may process information outside the UK, including in the United States. Where they do, we rely on the legal safeguards for international transfers, such as the UK's International Data Transfer Agreement or Addendum.

Your rights

You can ask us to:

give you a copy of the information we hold about you
correct it
delete it
stop using it, including withdrawing your consent at any time

Every email we send has an unsubscribe link, or you can email hello@mathsley.com. We'll reply within one month.

Complaints

If you're unhappy with how we've used your information, please tell us first. You can also complain to the Information Commissioner's Office at ico.org.uk/make-a-complaint or on 0303 123 1113.

Changes to this notice

If we change how we use your information, we'll update this page and the date at the top.