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Edlumo

For adults: parents, carers, teachers and anyone learning on their own.

Privacy notice

Version 1.2. In force from 13 October 2026.

For children and young people: Your privacy

The short version

  • We keep as little as we can. We never ask for a date of birth, a photo, a home address, or anything about health or special needs.
  • If you use Edlumo through a school or a tutor, they are in charge of your data. We look after it for them and follow their instructions.
  • If you use Edlumo as a family, or on your own, we are in charge of your data.
  • We never sell data and never show adverts. No other company may use it to train AI.
  • We may learn from results with every name and detail taken out, so nobody can be identified, to make Edlumo better.
  • Most data is kept in the UK. Some services we use keep data in the European Union or the United States, under safeguards UK law approves.
  • You can see, download, correct or delete your data. Write to contact@edlumo.co.uk.

On this page

  1. Who we are
  2. Who is in charge of your data
  3. What we keep
  4. What we never keep
  5. Why we use your data, and the law that allows it
  6. How we choose the next question
  7. AI
  8. Who we share it with
  9. Where it is kept
  10. How long we keep it
  11. How we keep it safe
  12. Your rights
  13. Cookies
  14. If you are not happy
  15. Changes to this notice

Who we are

Edlumo is a place for children to learn and practise, and for schools, teachers and guardians to help them.

In this notice, "we" and "us" mean Edlumo. You can write to us about anything in it at contact@edlumo.co.uk.

There is a shorter version for children and young people: privacy for young people.

Who is in charge of your data

The law calls the organisation in charge of personal data the "controller". The one that looks after it on their behalf is the "processor". Who is in charge depends on how you use Edlumo.

How you use EdlumoWho is in chargeWhat we are
Through a school or a group of schoolsThe school or the trustTheir processor
Through a tutorThe tutorTheir processor
As a family, with a parent’s accountEdlumoThe controller
On your own, aged 18 or overEdlumoThe controller
On our waiting list or contact formEdlumoThe controller

If a school or a tutor is in charge, their own privacy notice comes first. Ask them about your data. If you ask us, we pass the question to them and tell you we have.

What we keep

About a child who practises:

  • their first name and the first letter of their surname (the full surname only if their school chooses that)
  • their school year, and their class if they are in one
  • a username, and a PIN that we keep scrambled so nobody can read it, us included
  • any changes that help them, such as larger text or a calmer screen. We keep the change, never the reason for it
  • every answer they give, every mark, and which topics they have mastered
  • if they are 13 or over and use their own sign-in: their email address and a scrambled password

About an adult: your name, email address, a scrambled password, your role (teacher, parent, tutor), and when you signed in.

About a teacher or a tutor, if you choose to answer: about how many hours a week marking, setting homework and recording marks took, before Edlumo and each week since. Your school’s leaders see only the total across everybody who answered, never split by person.

About someone who pays: the name and email address on the order, and what was bought. Stripe, the card company, holds the card. We never see the card number.

About someone on our waiting list or who uses our contact form: your email address, and anything else you choose to tell us — your name, your school, your message.

About every visit: the address of the page, your IP address and your browser. We use this to keep the service running and safe.

What we never keep

We do not ask for, and have nowhere to store: a date of birth, a photo, a home address, a pupil number from the school’s records, special educational needs, free school meals, health, ethnicity, religion, or anything else the law calls "special category" data.

When we ask for an age, we ask for the year you were born. We check it and throw it away. We only keep the fact that you said you were old enough, and when.

Children cannot send messages to anyone, and nobody can send messages to them. There is no chat, no public profile, and no place to post anything.

Why we use your data, and the law that allows it

Data protection law lets an organisation use personal data only for a reason the law accepts. The law calls this a "lawful basis". These are ours.

If you use Edlumo through a school or a tutor, they choose the lawful basis, because they are in charge of your data. For a school it is usually its public task of educating children. We use the data only as they tell us to.

If you use Edlumo as a family, on your own, or through our website, these are the reasons and the lawful basis for each:

What we doWhyLawful basis
Make and run accounts, and let people sign inSo you can use what you asked forContract: the agreement you made with us when you opened the account
Give questions, mark answers, choose what comes next, and show progressThat is the serviceContract
Let a child under 13 practise in a parent’s or carer’s accountSo the child can practise at homeContract with the parent or carer, and their consent for the child
Let a young person aged 13 or over sign in with their own email addressSo they can practise on their ownTheir own consent, inside the account their parent or carer made
Take payment, and send receiptsTo sell what you asked forContract
Send emails about your account, such as a sign-in link or a change to these termsSo you can use the service and know what changesContract
Book a session with a tutorSo you can have the help you asked forContract
Keep records of paymentsTax law says we mustLegal obligation
Answer you when you write to usBecause you askedLegitimate interests: answering the people who contact us
Write to you from our waiting listTo tell you when we open for youConsent, which you can take back at any time
Keep a record of visits, stop attacks and fix faultsTo keep the service working and safeLegitimate interests: keeping the service secure
Turn results into statistics that identify nobody, to improve questions, explanations and how we choose what comes nextTo make Edlumo better for everyone who uses itLegitimate interests: improving the service. Once the data identifies nobody, it is no longer personal data
Keep information we need if there is a disputeTo protect our rights and yoursLegitimate interests, or legal obligation

Where we rely on legitimate interests, we have checked that our reason does not outweigh your rights. We never rely on it to decide anything about a child.

Where we rely on consent, you can take it back at any time, in your account or by writing to us. That does not undo what we did before.

How we choose the next question

We use a child’s answers to choose what they should practise next. The law calls this "profiling". We do it because it is what practising here means: without it, every child would get the same worksheet.

  • It is worked out by fixed rules, not by AI. The same answers always lead to the same next question, so we can explain any question to a parent or teacher.
  • It is only used to choose questions and to show the child and their adults how they are doing.
  • It is never used for adverts, never shared, never sold, and never ranks one child against another.
  • A teacher or tutor can change it.
  • Deleting the child deletes it.

Nothing here makes a decision about a child that has a legal or similar effect on them.

AI

No AI makes or marks questions. Questions are made and marked by fixed rules.

In future, AI may help a teacher mark written answers, and help a teacher plan. A person will always check before anything counts. We will update this notice, and tell schools, before either is switched on.

No company we work with may use anyone’s data to train AI.

We may use results to build and improve our own tools, including our own AI models. We only do this with data that identifies nobody: every name, username, email address and detail that could point to a person is taken out first, and results are grouped so that no single child can be picked out.

For a school or a tutor, we do this only where our agreement with them allows it.

Who we share it with

The adults who should see it. A child’s teacher sees their class. A tutor sees only the children enrolled with them. A parent sees their own children.

The companies that help us run the service. They follow our instructions, under a written contract, and cannot use the data for anything of their own. The full list, with what each one does and where, is on our page of who helps us.

  • SIELAY LTD: holds our accounts with the services below, and runs them for us under a processor agreement
  • Vercel: runs the website and the app
  • Neon: keeps the databases
  • Amazon Web Services: sends email, and stores files
  • Stripe: takes card payments
  • Better Stack: keeps our logs, so we can see when something breaks

The law. If the police, a court or a regulator has the legal power to make us share something, we check the request and share only what it needs.

We never sell data. We never show adverts. We never share data with anyone to market to you.

Where it is kept

The app and its databases run in London.

Some services we use keep data elsewhere: our logs are kept in the United States by Better Stack, and card payments are handled in the European Union and the United States by Stripe. The full list is on our page of who helps us.

Some of the companies we use are based in the United States. Where one of them could reach data from outside the UK, we rely on the safeguards UK law approves: the UK–US "data bridge", or the UK’s International Data Transfer Agreement.

How long we keep it

WhatHow long
A school pupil’s dataAs long as the school tells us. When a school deletes a pupil, it is gone for good after 7 days
A family’s or a learner’s accountAs long as the account is open. When you close it, it is gone for good after 7 days
Records of payments6 years, as tax law requires. They name nobody once the account is closed
A record of visits90 days
Waiting list and contact formUntil you ask us to remove it, or until we have told you we are open and you have not joined
BackupsUp to 7 days after the original is deleted

When we delete something, we really delete it. We keep only a note that a deletion happened, which names nobody.

How we keep it safe

  • Every school has a database of its own. Families and learners share one, with every account walled off from the others.
  • Passwords and PINs are scrambled so they cannot be read, even by us.
  • Everything travels encrypted.
  • Our own staff can only look at a school’s data when the school has a problem we need to fix. Two of us must agree, it ends after a set time, and the school can see every time it happened.
  • If something goes wrong that puts your data at risk, we tell the person in charge of it straight away, and the Information Commissioner’s Office within 72 hours when the law says we must.

Your rights

You have the right to:

  • ask what we hold about you, and get a copy
  • have something wrong put right
  • have your data deleted
  • ask us to stop using it, or to use it less
  • take it with you, in a file another service can read
  • object to how we use it
  • take back your consent, where we asked for it

A parent or carer can use these rights for their child. A young person can use them for themselves.

Families and learners can download everything and close their account themselves, in Your data in their account.

For anything else, write to contact@edlumo.co.uk. We answer within one month. It is free. If you use Edlumo through a school or a tutor, we pass your request to them, because they decide.

Cookies

We use one cookie, and only once you sign in. It keeps you signed in. We use no cookies for tracking or adverts, and nothing from anyone else. The details are on our page about cookies.

If you are not happy

Tell us first, at contact@edlumo.co.uk. We will say we have received it within 30 days, and try to put it right.

You can also complain to the Information Commissioner’s Office, the UK’s data protection regulator, at any time: ico.org.uk/make-a-complaint or 0303 123 1113.

Changes to this notice

When we change this notice, we change the date at the top. If a change matters to how your data is used, we tell you before it happens: schools by email, and families and learners in their account.

Versions

VersionIn force fromWhat changed
1.213 October 2026Our name is now Edlumo. No company line until the company is registered.
1.111 October 2026Names the hours a teacher or tutor may choose to tell us about their week, and who sees them.
1.07 October 2026First published.

This page is in English. If it is ever translated, the English version is the one that counts.