Terms of Service

Last updated: August 2026

1. Who we are and how to reach us

Treneris is operated by NodeonLabs s. r. o., registered office at Vajanského nábrežie 64/5, 811 02 Bratislava – mestská časť Staré Mesto, Slovak Republic, company ID (IČO) 57464031, VAT ID SK2122767911, entered in the Commercial Register of the Bratislava III City Court, Section Sro, Insert No. 196669/B. We are a registered VAT payer in the Slovak Republic. These Terms of Service govern your use of the treneris.sk website and the Treneris mobile app. By using Treneris you agree to them. You can write to us any time at hello@treneris.sk.

2. What Treneris is — and what it is not

Treneris is software for fitness coaches and their clients. A coach uses it to schedule sessions, build training and meal plans, track a client's progress and record payments. A client sees their schedule, plans, progress and payments. Treneris is only a platform. The coaching itself, the advice and the content of the plans come from your coach, not from us. We are not a party to the agreement between coach and client, we do not verify a coach's qualifications or the content they create, and we are not responsible for how your coaching goes or what results it produces.

3. Age and eligibility

You must be at least 16 years old to use Treneris. If you are under 18, you need the consent of a parent or legal guardian both to use the service and to work with a coach. If we find that an account is used by someone under 16, we will close it. By using the service you confirm that the information you give about yourself is true and up to date.

4. Accounts and invitations

There is no self sign-up in Treneris. An account can only be created from an invitation: a coach invites their client, and a Treneris administrator invites a coach. An invitation is personal and expires. Your role — coach or client — is set by the invitation and cannot be switched inside the app. You are responsible for the security of your login: never share your password, and tell us immediately if you lose access. One account belongs to one person.

5. The coach–client relationship

The coaching agreement is made directly between the coach and the client. They agree the price, the scope, the place and the time of sessions between themselves; Treneris only records and organises it. The coach is responsible for holding the licences and qualifications their work requires and for complying with the rules that apply to them, including tax and social-contribution obligations. A coach only sees the data a client makes available to them in the app. Progress photos are private by default and become visible to the coach only when the client explicitly shares them.

6. Acceptable use

Use Treneris only for what it is meant for. You must not: upload content you have no rights to, or that is unlawful, abusive, or shows another person without their consent; impersonate anyone; try to reach other users' data; bypass security, scrape the service or overload it; use Treneris to promote medicines, doping substances or other prohibited products. We may remove content that breaks these rules and may restrict or close the account behind it.

7. Session payments, fees and commission

A client pays their coach for training sessions. This is payment for a service delivered in person, not for digital content. Card payments are processed by Stripe through Stripe Connect: the money goes straight to the coach's account and we never hold it. For handling the payment we charge the coach a commission of [TODO: current commission rate in %] of the amount paid; the client pays nothing on top of the agreed price. Stripe's own processing fees are borne by the coach. Card payment is only available when the coach has Stripe set up; otherwise sessions are paid to the coach outside the app and Treneris merely records them. Prices include VAT where VAT applies.

8. Cancellation and refunds

The rules for cancelling a session and for any refund are set by your coach; what you agreed with them applies. A session cancelled less than 24 hours before it starts may be charged by the coach. Ask your coach for a refund — the coach issues it, and when they do we return our commission to them as well. Stripe's processing fee is not refundable. If you and your coach cannot agree, write to us at hello@treneris.sk and we will help, though we cannot decide the dispute for you.

9. Coach subscription

Treneris offers coaches two plans. Warmup is free, needs no payment card and lets you work with one active client at a time. Lift is a paid subscription, billed monthly or annually. Monthly Lift costs €19 a month and includes 10 active clients; each further active client adds €1 to the monthly payment, which never exceeds €49 — that is a cap on the price, not a limit on the number of clients. Annual Lift costs €190 a year and includes 10 active clients. A client added during an annual term costs nothing until the next monthly anniversary of the term; if you still need that extra place then, it is prepaid at €1 for each remaining whole month of the annual term, and a paid place can be reused for another client until the term ends. A full year of annual Lift never costs more than €550. An active client is a client you currently manage who is not archived, whether or not they use the app. Each renewal is calculated from the number of active clients at the moment of renewal; there is no proration, and we never charge retrospectively for clients you had earlier. Each coach can use one 14-day Lift trial. It starts only when you explicitly activate Lift on the website, not at registration, and it cannot be repeated; unless you cancel before it ends, the paid subscription then starts at the price that matches your active clients at that moment. The subscription renews automatically at the end of each period until you cancel it. Once you cancel, you can no longer add clients or send new invitations, but you keep access to your existing clients until the end of the trial or of the period you have paid for; a period already paid for is not refunded unless we agree otherwise or the law requires it. If you cancel an annual subscription, extra clients you keep beyond the places already paid for remain payable at the remaining monthly checkpoints of the current annual term; archiving them before a checkpoint avoids that payment. If a payment fails, you keep normal access for three days; after that your account becomes read-only until the amount due is paid, and we issue no new invoices in the meantime. When a trial or a paid term ends without renewal, you can keep one client of your choice on the free Warmup plan or delete your account; if you have more than one active client, we never choose for you, and your account stays read-only until you choose. Complimentary access agreed with us in a separate contract lasts for the period stated in that contract; we will notify you before it ends, and paid Lift continues afterwards only if you activate it. The subscription is bought, changed and cancelled on the treneris.sk website only — it cannot be purchased or changed in the mobile app, which merely shows its status. We may change subscription prices; we will tell you at least 30 days in advance and the new price applies from the next period.

10. Your content and the licence you give us

Everything you upload to Treneris — progress photos, notes, workout records, plans — stays yours. So that we can run the service for you, you give us a non-exclusive, royalty-free licence to store, back up and display that content to you and to the people you share it with, and to process it technically (for example to resize a photo). The licence exists only to operate Treneris and ends when you delete the content or your account. We do not use your content for advertising, we do not sell it, and we do not use it to train artificial-intelligence models. You are responsible for having the right to upload what you upload.

11. Health and fitness — important notice

Treneris is not a medical service and does not provide healthcare, medical advice or dietetic advice. Training plans, meal plans, calorie estimates and recommendations in the app are informational and do not replace examination, diagnosis or treatment by a doctor or another healthcare professional. Consult a doctor before starting any training or nutrition programme, especially if you have a health condition, are pregnant, take medication, or have not exercised for a while. Exercise carries a risk of injury. If you feel pain, dizziness or difficulty breathing while training, stop and seek medical help. In an emergency call 112. You train at your own risk.

12. AI-assisted features

Some Treneris features use artificial intelligence — drafting a meal plan and estimating calories in the food diary. These outputs are generated by a language model through the provider OpenRouter and are only a suggestion and an estimate: they can be inaccurate and are never medical or dietetic advice. They should always be reviewed by your coach and sanity-checked by you, especially where allergies and intolerances are involved. We send the AI system only the data needed to produce the suggestion, without your name, e-mail or other direct identifiers. Details are in the Privacy Policy.

13. Intellectual property

Treneris, its source code, design, logo, name and all content we created are owned by us or by our licensors. We grant you a personal, non-transferable and revocable right to use the app under these Terms. You may not copy, modify, reverse-engineer, resell it or create derivative works from it.

14. Availability, changes and deleting your account

We work to keep Treneris reliable, but we do not guarantee uninterrupted availability. We may take the service down for as long as maintenance needs, and we may change or discontinue individual features. You can delete your account yourself at any time in Settings → Privacy → Delete account; this applies to coaches and clients alike. Deletion is irreversible. We must keep some data after deletion where the law requires it (for example accounting documents and consent records) — see the Privacy Policy for detail. We may restrict or close your account if you seriously break these Terms or if the law requires us to; where possible we will warn you first.

15. Liability and its limits

Treneris is provided “as is”. We are liable for damage caused intentionally or by gross negligence and for harm to life and health; that liability is not limited. Otherwise our liability is capped at the amount you paid us for the service over the last 12 months, and we are not liable for lost profit or indirect damage. We are not liable for what a coach or a client does, for the content of plans and advice users give each other, or for outages at third-party services (Stripe, Supabase, our e-mail and AI providers). If you are a consumer, these limits apply only as far as Slovak law allows; your statutory rights are unaffected.

16. Changes to these Terms

We may update these Terms from time to time — for example when a new feature ships or the rules change. We will tell you about a material change in the app or by e-mail at least 30 days before it takes effect, and we may ask you to accept the new version when you next sign in. If you do not agree with a change, you can stop using the service and delete your account. The current version is always available at treneris.sk/terms.

17. Governing law, disputes and effective date

These Terms are governed by the law of the Slovak Republic. We will try to settle any dispute by agreement first — write to hello@treneris.sk. If we cannot agree, the competent court of the Slovak Republic decides determined in accordance with applicable law. If you are a consumer you may also turn to the Slovak Trade Inspection (Slovenská obchodná inšpekcia, soi.sk) as the alternative dispute resolution body, and the mandatory rules of the country where you habitually live still apply to you. If any provision of these Terms is invalid, the rest stays in force. These Terms take effect on 1 October 2026.