Terms and conditions

These terms are the agreement between you and us about using Tjaz, and explain how we handle your personal data. Please read them: you accept them when you create an account, or when you make a quiz.

1Who we are

Tjaz is made and run by Allan Ebdrup, a private person in Denmark. There's no company behind Tjaz yet. In these terms, “we” and “us” means Allan Ebdrup, and “you” means you, who use Tjaz.

Allan EbdrupAlliancevej 4. th2450 København SVDenmarkhelp@tjaz.com

2Accepting the terms

You accept these terms when you create an account, or when you make a quiz without one. If you don't accept them, please don't use Tjaz.

If you use Tjaz for an organization, e.g. a school or a company, you accept the terms on its behalf, and confirm that you're allowed to.

You must be at least 13 years old to create an account, which you confirm when you sign up. Anyone can take quizzes without one.

3What Tjaz is

On Tjaz you can make quizzes, lessons and courses, also with the help of AI, and share them with others.

Tjaz is free for now. We may add paid plans later. Their prices and any extra terms are shown before you choose a paid plan, and you never pay for anything you haven't chosen.

We do our best to keep Tjaz running, safe and useful, but Tjaz is provided as it is. We can't promise that it's always available, that it has no errors, or that nothing is ever lost, so keep your own copies of what matters to you.

We may change Tjaz, e.g. add, change or remove features, and limit how much it can be used, e.g. how many quizzes can be made in an hour. We may also close Tjaz. If we do, we tell you at least 30 days before, so you can save what you've made.

4Your account and organization

Give correct details when you sign up, and keep your password to yourself. You're responsible for what's done with your account, so tell us right away if you think someone else has used it.

When you sign up, you get an organization of your own, which you're the admin of, unless you've been invited to someone else's. Admins decide who's in their organization, and can invite, change and delete its users. Everyone in an organization can see all its quizzes, lessons and courses, and make new ones. Only the person who made a quiz can edit and delete it, while everyone in the organization can edit and delete its lessons and courses. When a user is deleted, whoever deletes them chooses who in the organization gets the quizzes they made.

5Your content

What you make or add on Tjaz, e.g. quizzes, texts, pictures and course material, is your content. You keep the rights to it.

You give us permission to store, copy, translate, adapt and show your content, as far as it's needed to run Tjaz and its features, e.g. to make a quiz from your course material, or to show your quiz to the people who take it. The permission is free, worldwide and not exclusive, and lasts as long as the content is on Tjaz, and for the copies others have made of it, see below.

Only add content you have the right to use, e.g. not a book, pictures or someone else's course material without permission.

Don't add personal data about other people, e.g. students, colleagues or customers, unless you're allowed to, and never sensitive personal data, e.g. about health, religion or sexuality.

You're responsible for your content. If someone makes a claim against us because of your content, or because you've broken these terms, you must cover our reasonable costs, as far as the law allows.

We don't sell your content, and we don't use it for advertising.

We may remove content, hide it from the quizzes page or block access to it, without asking you first, if we believe it breaks these terms or the law, or if someone reports it with good reason.

7Quizzes made with AI

Tjaz uses AI to make quizzes and to translate them. AI can make mistakes: an answer marked as right can be wrong, a fact can be out of date, and a text can be unsuitable. Check a quiz before you use it, especially for teaching, training or anything else where mistakes matter.

Quizzes on Tjaz aren't professional advice, e.g. medical, legal or financial advice.

You're responsible for how you use the quizzes you make and share, also the parts made by AI.

The AI is from Anthropic in the USA. What you ask it to make a quiz from is sent to it: the description, the settings and any course material you add, and the texts of a quiz you translate. Don't include personal data in it. Course material you add is kept with your account, under Source material, until you delete it there; when your account is deleted, it goes with your quizzes to the one in your organization who gets them, or is deleted if you're the last one in it. It's sent to the AI again when a question in a quiz made from it is checked. The AI also checks that what you ask it to make a quiz from is within these terms, and if it isn't, the quiz isn't made.

A quiz that's written or changed in the editor is also checked against these terms by the AI, with its pictures, when it hasn't been changed for 10 minutes. If it isn't within them, others can't take, find or copy it until it has been changed, and the person who made it is told why by email.

When someone reports an error in a question or a fact in a quiz made with AI, the AI checks it, and corrects the quiz if it's wrong. If many of those who answered the question report it, it's replaced by a new question.

These checks are made automatically, and no person looks at them. If you think the AI is wrong, write to help@tjaz.com, and a person at Tjaz will look at it.

Quizzes made with AI say so when they're taken, also copies of them.

8Pictures in quizzes made with AI

A quiz made with AI can have pictures where they help with a question, and one on its first screen. Tjaz finds them on Wikimedia Commons, a library of free pictures run by the Wikimedia Foundation in the USA, and uses only pictures with a free license, e.g. a Creative Commons license. To find them, Tjaz sends Wikimedia only the title of a Wikipedia article and the names of pictures, never anything about you.

The AI from Anthropic looks at the pictures Tjaz finds, with the quiz's questions and their right answers, and chooses one only if it shows what it should, suits children and doesn't give an answer away. The AI can make mistakes, so check the pictures as you check the rest of the quiz. In the editor you can change a picture to another one Tjaz found, remove it, or put in your own.

The pictures that are chosen are copied to Tjaz, so the people who take a quiz get them from Tjaz, and never from Wikimedia. For math questions, Tjaz draws pictures itself, e.g. a triangle, a graph or things to count, from a description the AI from Anthropic writes. A drawing is marked “Drawn by Tjaz” where it's seen big, and in the picture's file.

The photos aren't your content: they belong to the people who made them, under their own licenses. Who made a photo and its license are shown with it when it's seen big, with links to its page on Wikimedia Commons and to the license. If you use a photo outside Tjaz, follow its license.

9What you must not do

Don't use Tjaz to:

break the law or other people's rights, e.g. their copyright or privacy
make or share content that's hateful, harassing, violent, sexual or harmful to children, or that's meant to mislead
send spam, scams or harmful software, or link to them
pretend to be someone else
get into accounts or data that aren't yours, or break, overload or get around Tjaz's security or limits
copy Tjaz or its content automatically, e.g. with scrapers or bots

We may block or close an account that breaks these terms, or that we must close by law, if necessary without warning. You can report a quiz that breaks the terms or the law with the Report quiz button in it, or by writing to help@tjaz.com.

A person at Tjaz looks at every report. When we remove a quiz someone made with their account, we email them why, and how they can object. If you gave your email when you reported it, we tell you what we decided.

10Your personal data

This section is about the personal data of everyone who uses Tjaz, also when you take a quiz without an account and haven't accepted these terms.

We're responsible for the personal data we process about you, which makes us the data controller. We process it according to the EU's General Data Protection Regulation (GDPR) and Danish law.

The personal data we process:

Your account: your email address, your name, what you plan to use Tjaz for, your organization and your role. Your password is stored so that no one can read it, not even us. If you turn on a passkey, we keep its public key, which can't be used to log in, the kind of device it was added on, e.g. iPhone, and when it was added and last used, and its backup code is stored so that no one can read it.
What you make, and the answers you give to quizzes and lessons, which are saved with your account when you're logged in. Answers to quizzes are also saved when you aren't logged in, without your name, e.g. how long each question took, the rating you gave, and whether you played in 2D or as a 3D game, which we use to see how Tjaz is used and make it better.
Technical data, e.g. your IP address, which is used to stop misuse, e.g. by limiting how many quizzes can be made. We keep it for an hour at most, and our hosting provider keeps it in its logs for up to a year. When you log in, sign up, change your password or email address, or turn a passkey on or off, we also write in those logs what happened and your account's id, but never your email address or password, so we can spot attacks on accounts.
If you report a quiz: what you write, and your email if you give it, so we can tell you what we decided.
If you write to us with Help and feedback: what you write, the page you wrote it from and which browser you use, so we can help you, and our answers. If you're logged in, also your account, and if you're a grown-up who gives your email, your email, so we can answer you. It's deleted two years after the last message, or sooner if you ask. If you suggest a better text in your language: the text you suggest, which our AI checks against these terms, and, if you are 15 or older and check that it may be shown, your name, which is shown on our page of thanks once your text is used, until you ask us to remove it. A suggestion that isn't used is deleted after two years.
If you challenge a friend from the end of a quiz: how many you got right, and the nickname you write, if you write one, which your friend and anyone the link is passed on to can see. It's deleted after 30 days.
If you play a quiz together on a big screen: the nickname you write and, when you team up against the monsters, the hero you design, which everyone in the game sees on the big screen, your answers and points, and a token kept in your browser, so you come back as the same player if the connection is lost. They're deleted a day after the game, and only how many played is kept, without names.
If you use Tjaz in Slack, or get a quiz from it there: see “Tjaz in Slack” below.

Why we process it, and the legal basis:

To give you Tjaz and your account, and to send you emails about your account, e.g. to verify your email address. It's necessary for our agreement with you (GDPR article 6(1)(b)).
To keep Tjaz safe, stop misuse and make Tjaz better, e.g. from what users plan to use it for. It's our legitimate interest in running a safe and useful service (article 6(1)(f)).
To follow the law, e.g. bookkeeping rules if we add paid plans (article 6(1)(c)).

We don't use your personal data for advertising, and we don't sell it. The only decisions that are made automatically are the AI's checks of quizzes, see Quizzes made with AI, and of the nicknames of challenges and of games on a big screen, and a person at Tjaz looks at one again if you ask.

To help you, or to stop misuse, the people who run Tjaz can see Tjaz as you see it when you're logged in, and can delete quizzes that break these terms. It's only done when it's needed, and it's logged.

Our suppliers, who store and process personal data for us:

Scalingo in France hosts Tjaz and its databases, in France.
Scaleway in France stores the pictures in quizzes, lessons and courses and the source material kept with your account, and sends Tjaz's emails, in the EU.
one.com in Denmark receives the emails written to help@tjaz.com, and the messages written to us with Help and feedback, in the EU.
Anthropic in the USA, whose AI makes, checks and translates quizzes, see below.

The AI from Anthropic gets what you ask it to make or translate a quiz from, the texts and pictures of quizzes that are written or changed in the editor, the quizzes an AI assistant writes for you, before they're saved, the texts of quizzes, to give each a subject and search words it can be found by on the quizzes page, and to translate one for someone who wants to play it in their language, the questions someone reports an error in, what's written in a report of a quiz, to translate it into English, what you write to us with Help and feedback, to translate it into Danish, and our answers, to translate them into your language, and the nickname written for a challenge or a game on a big screen, to check that it's fine to show, e.g. that it isn't a full name or a rude word. It doesn't get your name or email address from Tjaz, but it gets any personal data in what it's sent, so don't put personal data in quizzes. Anthropic deletes it within 30 days, unless it's needed to stop misuse of its AI or by law. Anthropic's terms include the EU's standard contractual clauses, and say that it doesn't use what it gets from Tjaz to train its AI.

If you log in with Google, Microsoft, Facebook or Slack, they tell us your name and email address, and Slack also who you are in your organization's Slack, see “Tjaz in Slack.” Their own terms apply to what they know about you. If you allow an AI assistant to use Tjaz for you, we keep which assistant and when it last used Tjaz, and send it only quizzes, links and totals, never the names or answers of those who played, see “Tjaz in your AI assistant.”

We keep your personal data while you have an account. When your account is deleted, we delete your account details within 30 days, apart from what we must keep by law, and from backups, which are deleted after a while. The quizzes, lessons and courses of your organization stay for the others in it, or are deleted with it, if you're the last one in it. Answers given without an account are kept without anything that tells who gave them. Reports of quizzes are kept, so we can see how a quiz was handled if it's reported again.

You have the right to see the personal data we have about you, to have it corrected or deleted, to have its use limited, to object to its use, and to get it in a format you can take elsewhere. Write to help@tjaz.com. You can also complain to the Danish Data Protection Agency (Datatilsynet) at datatilsynet.dk.

Tjaz' server also counts, hour by hour, how many see the front page, order a quiz, get it made, play it to the end and make an account, for each language, to see how Tjaz is used. These numbers say nothing about who, so they aren't personal data, and no cookies are used for them. To count only people, the server looks at what your browser says about itself, e.g. its name, to leave out robots such as search engines, and at whether you're on a network the people who run Tjaz have used in the last week, to leave out their own tests. It keeps none of it.

Read the short version about your personal data

11Personal data an organization adds

When an organization uses Tjaz for personal data about other people, e.g. when it invites colleagues, or collects answers from its employees or students, the organization decides what the data is used for, and is its data controller. It's responsible for having a legal basis for the data, and for telling the people it's about.

We process that data on the organization's behalf, as its data processor, only to run Tjaz according to these terms, which are the organization's instructions to us. We keep the data confidential and secure, use only the suppliers above as sub-processors, and tell the organization before we change them, so it can object. We help the organization answer requests from the people the data is about, tell it without undue delay if the data is breached, and delete the data when the organization stops using Tjaz.

Write to help@tjaz.com if your organization needs a separate data processing agreement.

12Tjaz in Slack

You can connect Tjaz to your organization's Slack and send quizzes to people there if you're at least 16. Slack is your organization's own service, under its agreement with Slack (Salesforce, USA), and what Tjaz sends to Slack is stored where your organization's Slack stores data. Slack's own terms and privacy policy apply to Slack.

When you connect Slack, we keep the workspace's ID and name, a key that lets Tjaz send messages there (encrypted), and who connected it. When you send a quiz, we keep who you chose to send it to, each person's Slack ID and name, whether it reached them, and, unless you send it anonymously, their answers, whether they were right and when they answered, so you can see how it went.

Slack also tells us who presses a button in Tjaz's messages, with their Slack ID and name, and sends us people's profiles (e.g. title and time zone) when we look up who's in a channel. We only use the ID, the name and whether they're a guest or from another organization; we don't keep the rest.

In an anonymous quiz, we never store who gave which answers: answers are kept under a random number, with the day but not the time. We know who has answered, so we don't remind them, but the sender doesn't, and the sender sees results only when at least 5 have answered.

We process the data about the people a quiz is sent to on behalf of the organization whose Slack it is, as its data processor (see “Personal data an organization adds”). The organization must tell its people about quizzes sent with names.

We never send anything from Slack to AI, never use it to train AI, never sell it and never use it for advertising, and we don't email the people who answer in Slack.

Names, Slack IDs and each person's answers are deleted when the sender deletes the quiz's send, and 12 months after its deadline at the latest; after that we keep only the totals without names. If someone says “Don't send me quizzes,” we keep only their Slack ID and that choice, so we can respect it. When Tjaz is removed from a workspace or its access is revoked, we delete the key at once and all of the workspace's Slack data within 14 business days.

Anyone who got a quiz from Tjaz in Slack can ask to see or delete their data at help@tjaz.com or with Help and feedback, without an account.

13Tjaz in your AI assistant

You can use Tjaz from an AI assistant, e.g. Claude, ChatGPT, Le Chat or Microsoft 365 Copilot, by adding Tjaz's address for AI assistants, tjaz.com/mcp, to it. The assistant is your own choice, under your own agreement with the company that runs it, e.g. Anthropic (USA), OpenAI (USA), Mistral (France) or Microsoft (USA), whose own terms and privacy policy apply to your chat. It isn't one of our suppliers, and we don't decide what it does with what it gets.

Anyone can find quizzes and see them from an assistant without logging in. To make, save or translate a quiz, or see how it went, you log in to Tjaz and allow the assistant to use Tjaz for you. We keep which assistant you allowed, its name and the addresses it sends you back to, when you allowed it and when it last used Tjaz, and the keys that let it use Tjaz for you, stored so that no one can read them. A key works for an hour, and the assistant can renew it as long as it uses Tjaz at least once every 30 days. You can see the assistants you allowed, and remove them, on your account page, and logging out everywhere removes them all.

What we get from the assistant: what you ask Tjaz for, e.g. the description of a quiz, the text of material to make it from, or the questions the assistant wrote, and that it's you. Material from the assistant is kept with your account, under Source material, like course material you add on tjaz.com, until you delete it there. A quiz made, saved or translated from an assistant is yours, like the quizzes you make on tjaz.com, and is only shown on the quizzes page if you ask for it to be public. A quiz the assistant wrote is checked against these terms by the AI before it's saved, and a quiz Tjaz makes for you is made by the AI from Anthropic, as on tjaz.com, see “Quizzes made with AI.”

What we send to the assistant: quizzes, their questions, with the right answers only for quizzes you made, links to play them, and how a quiz you made went, only as totals for everyone who played it, and only when at least 5 have played it to the end. We never send the names, nicknames or answers of those who played. The company that runs the assistant keeps what it gets according to its own terms, which may be outside the EU.

The assistants are for people from 13 or 18, depending on the assistant, so Tjaz in an assistant is meant for teachers, parents and other grown-ups who make quizzes. Children play the quizzes on tjaz.com, never in the assistant. Don't put students' or other people's personal data in what you ask for.

14Cookies

Tjaz uses these cookies, all for Tjaz itself. We don't use cookies for advertising or tracking.

tjaz_session keeps you logged in, until you close the browser and for a day at most, or for 30 days if you choose to stay logged in.
tjaz_device remembers, for a year, which accounts have logged in with their password in this browser, so wrong passwords someone tries somewhere else can't keep you from logging in here. It doesn't say whose accounts they are.
tjaz_lang remembers the language you choose, for a year.
tjaz_quiz_owner remembers, for 5 years, that your browser made the quizzes you make without an account.
tjaz_quiz_settings remembers, for a year, the settings you chose the last time you made a quiz, e.g. the tone and how many questions, and whether you had them folded out, but not what the quiz was about.
tjaz_character remembers, for a year, how you designed your character in the 3D game, and your hero when you team up against the monsters on a big screen.
tjaz_oauth is used for a few minutes while you log in with Google, Microsoft, Facebook or Slack.
tjaz_consent is used for half an hour at most while you connect an AI assistant, e.g. Claude or ChatGPT, to your account.
tjaz_slack is used for a few minutes while you add Tjaz to Slack, and for an hour after, so the page you come back to can say which workspace you added it to.
tjaz_message_… remembers, for 30 days, the key to a conversation you have with us through Help and feedback, after you open it from the link in our email, so the key doesn't stay in the page's address.
tjaz_impersonate is only used by the people who run Tjaz, for a few hours at most, while they see Tjaz as a user does.
tjaz_2fa is only used by the people who run Tjaz, for 12 hours, to remember that they confirmed it's them with their passkey.
tjaz_tester is only used by the people who run Tjaz, for a year, so what they do while they test Tjaz isn't counted.

Tjaz also keeps these in your browser, which aren't cookies:

The answers to a quiz you take, so you can go on where you left off, also when you switch between 2D and 3D.
playbackRate remembers how fast you chose to play the videos in quizzes.
tjazQuizEnd remembers, until you close the tab, which page a quiz goes back to when it ends.
tjazQuizDraft remembers, for a day at most, what you wrote and chose on the front page when you go to sign up or log in to add source material, so it's there when you come back. It's removed as soon as it's back.
When you play a quiz together on a big screen, the token your phone or laptop joined the game with, so you come back as the same player, and on the big screen the game it shows, so it goes on if the page is opened again, until the game is over.

15Our liability

Tjaz is free, and is provided as it is. As far as the law allows, we're not liable for losses from using Tjaz or from not being able to use it, e.g. lost data, lost income, or the consequences of mistakes in quizzes, also ones made by AI or by other users.

If we're liable anyway, our liability is limited to the amount you've paid us for Tjaz in the 12 months before the loss, or DKK 500 if that's more.

We're not liable for delays or failures caused by things outside our control, e.g. failures at our suppliers, attacks on Tjaz, or power and network failures.

Nothing in these terms limits liability that can't be limited by law, e.g. for intent or gross negligence, or your rights as a consumer under mandatory law.

16Closing an account

You can stop using Tjaz at any time, and delete your account on your profile, or have it deleted by writing to help@tjaz.com.

We may close your account if you break these terms. We may also close an account that hasn't been used for 2 years, after telling you by email at least 30 days before.

17Changes to the terms

We may change these terms, e.g. when we add paid plans. If a change matters to you, we tell you by email or on Tjaz at least 30 days before it takes effect, unless it must happen sooner by law or for security. If you keep using Tjaz after that, you accept the new terms. If you don't accept them, you can stop using Tjaz and have your account deleted.

We may transfer the agreement with you, with your account and content, to a company that takes over Tjaz, e.g. one Allan Ebdrup creates to run it. We tell you if we do, and your rights under these terms stay the same.

18Law and disputes

Danish law applies to these terms. If we disagree, please write to us first, so we can try to solve it together.

Disputes are settled by the Danish courts, in the first instance by the City Court of Copenhagen (Københavns Byret). If you're a consumer in the EU, you keep the protection of the mandatory rules of the country you live in, and can also take a dispute to the courts there.

The terms are written in English and translated with AI. If a translation differs from the English version, the English version applies, as far as the law allows.

19Contact

Write to help@tjaz.com if you have questions about the terms or your personal data, or want to report content that breaks them.

help@tjaz.com is also Tjaz's point of contact for users and for the authorities under the EU's Digital Services Act. You can write to us in Danish or English, or in your own language, which we translate.