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The boring but important bit

Written in plain English, on purpose

⚠️ One task left before subscriptions launch: have a solicitor read this once. It is written to be accurate and fair, but it is not a substitute for legal advice.

Privacy policy

Last updated: 14 July 2026

The short version: your child's data never leaves your device. We do not have it, we cannot see it, and we could not sell it if we wanted to.

What we store, and where

Maths Legends runs entirely inside your web browser. When your child plays, the following is saved on your own device, in your browser's local storage:

None of this is sent to us or to anyone else. There is no account, no login, and no server holding your child's information. If you clear your browser data or uninstall the app, that information is gone, including from our reach, because we never had it.

What we do not do

If you buy a subscription

Payments are handled by Stripe, who take the card details directly. We never see or store your card number. To manage your purchase we hold the parent's or carer's email address and the fact that you have paid. That is an adult's data, not a child's.

Stripe processes payment data as an independent controller under their own privacy policy: stripe.com/privacy.

Your rights

Under UK GDPR you may ask us for a copy of any personal data we hold about you, ask us to correct or delete it, or object to how we use it. In practice, the only personal data we are likely to hold is a parent's email address linked to a purchase. Write to hello@captaincleo.com and we will deal with it within 30 days.

You can complain to the Information Commissioner's Office at ico.org.uk if you are unhappy with how we have handled your data.

Children's data and safety

Maths Legends is designed to be used by children, so we follow the Information Commissioner's Age Appropriate Design Code (the Children's Code). The way we do that is by collecting as close to nothing as possible.

How we protect children by design

Purchases are for adults only

Only a parent or carer can buy a subscription, and buying happens outside the games. A child playing the app is never shown a payment screen.

Deleting a child's data

Open the app, go to For grown-ups, and press Delete this player. That erases everything about that child from the device immediately. You do not need to ask us, because we do not hold a copy.

Terms of use

Last updated: 14 July 2026

The agreement

By using Maths Legends you agree to these terms. If you are buying a subscription you confirm you are 18 or over and are the parent or carer of the children who will use it.

What you get

A licence to use Maths Legends for your own family's personal, non-commercial use. You may set up players for the children in your household.

What you may not do

What we promise, and what we do not

We will try hard to keep Maths Legends working and available, but we cannot promise it will be uninterrupted or entirely free of bugs. It is provided "as is".

We do not promise results. Maths Legends is practice software, not a tutor and not a guarantee. We will never claim that using it will improve a child's marks or their score in any school test, and you should be sceptical of anyone who does.

Nothing in these terms limits our liability for death or personal injury caused by negligence, for fraud, or for anything else that cannot be limited by law. Otherwise, our total liability to you is limited to the amount you have paid us in the previous 12 months.

Your data is on your device

Because progress is stored in your browser, we cannot recover it if you lose it. Clearing your browsing data, switching browser, or using a different device will start a fresh set of players. This is the price of the app not holding your child's information, and we think it is the right trade.

Changing these terms

If we change them materially we will say so in the app. Continuing to use it after that means you accept the change.

Law

These terms are governed by the law of England and Wales, and the courts of England and Wales have jurisdiction. If you live elsewhere in the UK you keep the protections of your local law.

Free trial, refunds and cancelling

The free trial does not need a card. Nothing starts automatically. Nothing renews behind your back. When the trial ends, the app asks you whether you would like to buy it, and if you ignore it, nothing happens and you are charged nothing.

Your 14-day right to cancel

If you buy a subscription you have a legal right to cancel within 14 days and get your money back, under the Consumer Contracts Regulations 2013.

Because we give you access straight away, at checkout we will ask you to agree that the service starts immediately and to acknowledge that this can affect that 14-day right. Even so, we will refund you anyway, see below.

Our own refund promise, which is simpler

Ask us within 30 days and we will refund you in full, no questions and no arguing. If your child did not take to it, we would rather give you your money back than keep it.

After 30 days, you can cancel at any time and you will not be charged again. We do not refund part-used periods after that point, but you keep access until the period you have paid for runs out.

Before we ever charge you

How to ask for a refund: email hello@captaincleo.com with the email address you paid with. We aim to answer within 2 working days.

About the Multiplication Tables Check

Maths Legends is not affiliated with, endorsed by, or approved by the Department for Education or the Standards and Testing Agency.

The Multiplication Tables Check (MTC) is a statutory assessment taken by children in Year 4 in England. Where Maths Legends offers practice for it, that practice is:

"Multiplication Tables Check" is used here purely to describe what the practice is for.

Who we are

Maths Legends is operated by:

Eternal Raine Ltd
Registered in England and Wales, company number 16505815
Registered office: 1 Bluebell Drive, Lower Stondon, Henlow SG16 6NN
Contact: hello@captaincleo.com

Company details are shown here as required by the Companies Act 2006.