Website terms
The short version: use the site and the practice freely, and don't misuse them.
Last updated: 12 November 2026
These terms cover your use of the mathsley.com website. The Mathsley app will have its own terms when it launches.
Who we are
This website is run by Optimised Digital Ltd, a company registered in England and Wales, company number 13436027, registered office 153 Sturge Avenue, London, E17 4LF. Contact us at hello@mathsley.com.
Using the website
You're welcome to use this website and its practice tools for free, for yourself, your family or your class. Please don't try to disrupt the site, get around its security, or copy it for a commercial service.
The practice tools
The tables check practice is designed to work like the Year 4 multiplication tables check, but it isn't the official check and isn't connected to the Department for Education or the Standards and Testing Agency. A practice score doesn't predict your child's result.
The SATs arithmetic practice papers follow the format of the key stage 2 maths arithmetic paper, but every question is written by Mathsley. They aren't official papers and aren't connected to the Department for Education or the Standards and Testing Agency. A practice mark is a raw mark only: it isn't a scaled score and doesn't predict your child's SATs result.
Information on the site
We work to keep information about the curriculum and assessments accurate and up to date, but it's general information, not professional advice. Check important dates and arrangements with your child's school.
Prices and offers
Prices on this website show what we plan to charge when Mathsley launches. The founding families offer is for the first 1,000 families to subscribe to Mathsley Plus: £19.99 a year, locked in for as long as you stay subscribed. Families on the waiting list get 7 days to claim it before it's offered to everyone. We'll confirm the details by email before launch. Final terms for the app and subscriptions will be set out in the app.
Our content
The Mathsley name, logo, illustrations, text and code on this website belong to us or our licensors. Please ask before reusing them.
Links to other websites
We link to official sources such as GOV.UK. We're not responsible for other websites' content.
Our responsibility to you
We provide this website as it is, free of charge. We're not liable for any loss caused by using it, except where the law doesn't allow us to exclude liability, such as for death or personal injury caused by our negligence, or fraud.
Law
These terms are governed by the law of England and Wales. If you live elsewhere in the UK, you can also bring proceedings in your local courts.
Changes
We may update these terms. The date at the top shows when they last changed.