Terms of Use

What Kematra is

Kematra is a study planning tool. It works out what you should study and when, suggests how to study it, points you at material, and adjusts as you record how each session went.

It is deliberately not several things, and it is worth being clear about them: it does not teach you, it does not mark your work, it does not supply course content, and it is not a tutor. It plans and it adapts. The studying is yours.

Kematra does not promise any grade, mark, ranking or exam result. No study tool can, and we will not imply otherwise. What we offer is a plan that responds to what you actually do — the outcome depends on your work, your circumstances, and a great deal that is outside anyone's control.

Some of the planning is informed by published research on how memory and practice work, and some of it is our own judgement about magnitudes and thresholds. The Transparency page sets out which is which, honestly, including where we are guessing.

Who can use it

You must be at least 13 years old. We ask before you can save anything, and if you tell us you are under 13 we delete the session immediately rather than merely turning you away.

We treat every user as though they may be a minor. That is why there are no third-party tracking scripts, why we ask for as little as we can, and why nothing about your studying is public or shared with other users.

If you are under 18, the person responsible for paying should be the one who subscribes. Payment is handled on Stripe's pages, where that declaration is made.

Your account

Keep your password to yourself, and tell us promptly if you think someone else has reached your account. You are responsible for what happens under your account, except where it happens because of something we did wrong.

One account is for one person. Sharing an account defeats the point of the thing — the plan is built from one person's results, and two people's results make a plan that fits neither.

Your work stays yours

Everything you put into Kematra is yours: your subjects, your topics, your goals, your notes, your results, and anything you upload. We do not claim ownership of it.

You give us permission to store and process that content only so far as running the service requires — to build your plan, to read a document you uploaded, and to show you your own history. We do not sell it, we do not use it to advertise to you, and we do not use it to train AI models.

The Privacy Policy sets out exactly which of your text is ever sent to an AI model and which never is. Your private notes are in the never column.

Only upload material you own, have permission to use, or are otherwise legally permitted to use. It is your call to make, not ours to police.

Using it reasonably

Do not:

• try to reach another person's account or data
• probe, scan or attack the service, or work around its rate limits and caps
• use automated tools to extract data at scale
• upload malicious files, or material that is illegal to hold
• resell or redistribute access to the service, scrape it at scale, circumvent its security, or misuse its APIs

We may suspend an account that is doing these things. Where we can, we will tell you why and give you a chance to put it right.

The service will change, and sometimes it will be down

We add things, remove things and change how things work. If a change materially reduces what a paid plan gives you, we will tell you before it takes effect.

We do not promise the service will always be available. It runs on infrastructure we do not own, and things break. We take reasonable technical and organisational measures to protect what you record, and it is stored durably and backed up — but no service can guarantee that data is never lost.

AI-generated content

Some of what you see is generated by an AI model — task instructions, criteria, the text read off a document you uploaded, and suggested topic lists.

It can be wrong. That is why nothing derived from a document reaches your plan until you have read the text and confirmed it, why suggested topics arrive as a list you tick rather than a fait accompli, and why a resource we suggest is labelled with how confident we actually are. Check things that matter.

Where the AI cannot help — because it is unavailable, because you are on the free plan, or because a check refused its output — Kematra is designed to use the deterministic fallback described for that feature rather than to show you an error.

Limitation of liability

Nothing in this document excludes, restricts or modifies any guarantee, right or remedy you have under the Australian Consumer Law that cannot lawfully be excluded. Nothing in these terms limits any mandatory consumer rights or protections that apply to you under the laws of the place where you live.

Subject to that, and to the fullest extent the law allows: we are not liable for any indirect, incidental, special or consequential loss; for lost profits, lost opportunity, or lost data beyond what our backups hold; or for any academic outcome, result, mark, ranking, admission or opportunity, whether or not you followed the plan.

Subject to the same, our total liability to you for everything arising out of your use of Kematra is limited to the greater of the amount you paid us in the twelve months before the claim, or twenty Australian dollars.

The service is provided as it is. Beyond the guarantees the law gives you and the promises made in these documents, we do not make other warranties — including that the service will be uninterrupted, that it will suit your particular course, or that its suggestions are correct for you.

If something you put in causes a claim against us

Nothing in this document excludes, restricts or modifies any guarantee, right or remedy you have under the Australian Consumer Law that cannot lawfully be excluded. Nothing in these terms limits any mandatory consumer rights or protections that apply to you under the laws of the place where you live.

Subject to that: if someone brings a claim against us because of material you uploaded, or because you broke these terms, you agree to cover the reasonable legal costs and any damages we have to pay as a result. In practice this is about copyright — if you upload a textbook you do not have the right to upload and the publisher comes after us for it, that is your doing and not ours.

This does not apply to anything we caused. If a claim arises from our own fault, our negligence, or us breaking these terms, it is ours to deal with, and nothing in this section shifts it to you.

If a claim like this ever arrives, we will tell you promptly, we will not settle it in your name without asking you first, and you can take over defending it if you would rather. We would also much rather sort a problem out early than send you a bill for it.

Ending it

You can stop using Kematra at any time, and you can delete your account from Settings. Deleting is staged: you have 30 days to change your mind, and if you had paid for time you have not used, that time survives the deletion request. The Privacy Policy explains what is erased and what has to be kept.

We may close an account that breaks these terms, or if we stop offering the service. If we stop offering it, we will give reasonable notice and refund the unused portion of anything prepaid.

Changes to these terms

We will post changes here with a new effective date. For changes that materially affect your rights, we will email you before they take effect. Continuing to use Kematra after that means you accept them; if you do not, delete your account and tell us, and we will refund unused prepaid time.

Governing law, and how to reach us

These terms are governed by the law of New South Wales, Australia. You and we submit to the non-exclusive jurisdiction of the courts of New South Wales and the Commonwealth of Australia. Nothing here stops you using a consumer dispute service available to you.

Legal notices: legal@kematra.com. Anything else: support@kematra.com. We aim to answer within a few days, and we would rather hear about a problem than have you sit with it.