1. What the platform is
The platform connects families and students with private maths tutors. The lesson contract is between the student (or their legal representative) and the tutor. The platform owner acts as an intermediary, in the name and on behalf of the tutor, and does not employ the tutors. The lesson price belongs to the tutor: the platform collects it on the tutor’s behalf (collection mandate) through Stripe, and Stripe transfers it to the tutor; the platform only receives its service fee.
2. Registration
You must be 18 or older to register. Lessons for minors are booked by a parent or legal guardian. Information you provide must be accurate.
3. Tutors
Tutors are independent professionals responsible for their own tax obligations. Before receiving the “Verified” badge they pass a video call with the platform's maths lead. Tutors who teach minors from Spain must provide a clear sexual-offences record certificate. Tutors based in other countries follow their own country's rules and may voluntarily provide an equivalent certificate; if they do, their profile shows the “Certificate for working with children” badge. The platform reviews the documents it receives but cannot vouch for the record of a tutor who has not provided one.
4. Prices and payments
Each tutor sets their price per 55-minute lesson and receives that price in full. When booking a paid lesson, the student also pays a 12% platform service fee, at least €2 per lesson (taxes included); the total price is shown on the tutor's profile before booking and again before payment. Lessons are paid at booking by card through Stripe (a licensed payment institution): when booking, the amount is held (blocked) on the student's card; it is charged when the tutor confirms the lesson, and Stripe transfers it to the tutor's account after the lesson. If the tutor does not confirm within the time limit in section 5, the hold is released automatically and nothing is charged. The platform does not receive lesson money into its own bank accounts. A free trial lesson is not charged; a half-price trial is charged at 50% plus the fee. Lessons with the founder carry no fee and are paid to her directly (section 5a). Card details are handled by Stripe; the platform never sees or stores them. For the service fee, the platform owner automatically issues a simplified invoice (VAT included), available in the student’s account; by using the platform, the student agrees to receive invoices electronically. Invoicing for the lesson price is the tutor’s responsibility. The platform may change the service-fee percentage with at least 30 days' notice on the website; a change does not affect lessons already booked and paid.
Lesson packages. A tutor may offer packages of 5 or 10 lessons with a discount they set themselves. The student pays for the package once (the lessons plus the service fee) through Stripe; the price per lesson is fixed at the time of purchase and does not change if the tutor later changes their rate. The money is held by Stripe and transferred to the tutor one lesson at a time, after each lesson is held, under the same rules as section 5 (a late cancellation by the student uses up a lesson from the package; a cancellation by the tutor returns it to the package). A package is valid for 6 months from payment. The student can close the package at any time from their schedule: unused lessons and the proportional part of the service fee are refunded; when the package expires, the refund is made automatically. A package cannot be closed while it has upcoming lessons booked. Only one package per tutor and student can be active at a time; packages do not apply to trial lessons.
5. Cancellations, withdrawal and refunds
- Withdrawal: as a consumer you have 14 calendar days to withdraw from a distance contract without giving a reason (Art. 102 ff. of Spanish Royal Legislative Decree 1/2007, TRLGDCU). If you ask for lessons to start within that period, you pay for what has already been provided, and the right is lost once the service has been fully provided with your express consent.
- The tutor confirms each booking with one click within 24 hours of the booking and in any case at least 2 hours before the lesson. If the tutor does not confirm in time, the booking is cancelled automatically, the hold on the card is released and the student can choose another tutor.
- Each tutor sets how far ahead lessons can be booked (3, 6, 12 or 24 hours before the lesson).
- A lesson can be cancelled free of charge up to 15 hours before it starts.
- If the student cancels less than 15 hours before or does not show up, the lesson is charged.
- If the tutor does not show up or cancels less than 15 hours before, the lesson is not charged; if already paid, the full amount, fee included, is refunded.
- Tutor and student must be online at the start time. If the student does not join within the first 20 minutes without notice, the lesson counts as held. If the student is late, the lesson still ends at the scheduled time.
- With the “Reschedule” button you can move a lesson free of charge and without paying again up to 15 hours before; the tutor confirms the new time. After that only cancellation is possible, and it counts as a late cancellation.
- After the lesson, the student has 12 hours to confirm whether it took place. To mark that it did not, the student must give a reason. If the student does nothing, the lesson is confirmed automatically.
- Before their first booking, students read and accept these rules.
- A student who insults or threatens a tutor, or tries to share contact details or arrange lessons or payments outside the platform (three attempts detected in chat), is permanently blocked. The student is told the reason and their future lessons are cancelled. The student can ask for a person to review the decision by writing to contact@mk-math.com.
- If the tutor is not the right fit after the trial lesson, you can choose another tutor or send a new request. Trial lesson terms (free, half price or full price) are set by each tutor and shown on their profile. Each student can take up to two trial lessons on the whole platform, with different tutors: at most one free and the other at half price; if the free trial has already been used, another tutor's free trial is offered at half price. At most one trial per tutor. Trial lessons are counted per person: accounts used from the same device or with the same email address count as one.
5a. Lessons with the founder (Madina Kadyrova)
Lessons with Madina Kadyrova are her own service as a self-employed professional: she gives the lesson and is paid for it, with no service fee. They are paid on the website by card through Stripe, directly to Madina’s account: when booking, the amount is held on the card and charged when Madina confirms the lesson; if she does not confirm, the hold is released and nothing is charged. Her price, trial lesson and packages (5 or 10 lessons, available after the first lesson with her) are shown on her profile; unused lessons from a package are refunded on the same terms as in section 4. For each payment Madina issues an electronic simplified invoice (VAT-exempt, Art. 20.Uno.10 of Spanish VAT Law 37/1992), available in the student’s account. By booking and paying, the student expressly asks for the lesson to be given within the 14-day withdrawal period and acknowledges that, once the lesson has been given, the right of withdrawal for it is lost (Art. 103(a) TRLGDCU). Before the lesson, it can be cancelled free of charge up to 15 hours before it starts, with a full refund. If Madina cancels or does not show up, the full amount is refunded.
6. Reviews and conduct
Only a student who has had at least one paid lesson with the tutor, confirmed on the platform, can post a review; trial lessons (free or half price) do not give the right to review. One review per student and tutor. Reviews are never paid for or incentivised and are not removed for being negative, only if unlawful or offensive. Profiles marked “example” are demo profiles, not real tutors. Their reviews are examples too and are marked as such.
Respectful behaviour is required. The platform may block an account for insults, threats or pressure on a tutor, for asking a tutor to sit an exam or test for the student, or for using a review as a threat to obtain benefits. More in How it works.
7. How results are ranked
Results follow the filters you choose (curriculum, language, price, verification). By default they are sorted by average rating weighted by the number of reviews (a single 5-star review does not outrank a hundred 4.9 reviews), the “Verified” badge, the number of confirmed lessons and no-shows or late cancellations in the last 90 days, with a small boost for tutors who bring their own students through their personal link and teach them (at most three students, equal to the “Verified” badge); example profiles always come last. You can also sort by price. There are no paid placements. The profile of the platform's founder, Madina Kadyrova, is shown first when a search has no curriculum filter or filters by one she teaches herself (SAT, IB, GCSE, IGCSE, A-Level, Further Maths); in all other searches she is ranked like any other tutor. She carries the “Platform founder” badge; her lessons are her own service and are paid to her directly. General requests, with no tutor chosen, are not sent to the founder: they go to the platform's tutors.
8. Chat and prohibited conduct
Exchanging contact details to bypass the platform, posting unlawful, offensive or misleading content and impersonation are prohibited. An automatic filter hides contact details; repeated breaches block the chat and may lead to account closure. Report unlawful content to contact@mk-math.com; we will review it and tell you our decision.
9. Liability
We verify tutors with reasonable care but do not guarantee academic results. Each tutor is responsible for their lessons.
10. Changes
We may change these terms with reasonable notice. The version in force is the one on this page.
11. Governing law
Spanish law. Consumers may go to the courts of their place of residence.