Terms of Service

TandemHQ ("Service") is operated by MARAKUJA, športne storitve, d.o.o. ("Marakuja", "we", "us"), a Slovenian limited liability company with registered seat at Ribarjeva ulica 5, 3000 Celje, Slovenia. Tax ID SI49790269, registration number 9813381000.

By creating an account or using the Service, you agree to these Terms of Service. If you do not agree, do not use the Service.

You must be at least 18 years old and capable of entering into a legally binding contract under the laws of the Republic of Slovenia or your country of residence.

If you are using TandemHQ on behalf of a tandem operation, school, or other organisation, you confirm that you are authorised to bind that organisation to these Terms.

You are responsible for keeping your account credentials confidential, for all activity that happens under your account, and for notifying us immediately at info@marakuja-tech.com if you suspect unauthorised access.

You are responsible for the accuracy of data you enter — flight logs, equipment records, invoices, and operator details. We provide the tooling; the legal accuracy of records is yours to maintain.

TandemHQ is offered on a monthly or annual subscription. Prices are displayed on tandemhq-753.netlify.app/#pricing and are billed in EUR (€), inclusive of any applicable VAT.

Payment is processed by Stripe. Your card is charged at the start of each billing period. Failed payments may result in suspension of the Service until resolved.

30-day money-back guarantee: for new customers, if you cancel within 30 days of your first paid charge, we refund the full amount with no questions asked. After 30 days, you may cancel at any time and you will not be billed for the following period; partial refunds for unused time are not provided unless required by law.

You can cancel from inside the app at any time. You retain access until the end of the current billing period.

You agree not to:

• Use the Service to violate any law or third-party right.
• Upload content that is unlawful, defamatory, infringing, or that contains malware.
• Probe, scan, or test the Service for vulnerabilities without prior written authorisation.
• Resell, sublicense, or expose the Service to third parties via your account.
• Automate use of the Service in ways that materially burden our infrastructure.

We may suspend or terminate accounts that violate this section, with notice where reasonable.

The Service, including its software, design, branding, and documentation, is owned by Marakuja and protected by intellectual property laws. You receive a limited, non-exclusive, non-transferable licence to use the Service for the duration of your subscription.

You retain all rights to the data you upload (your flight logs, invoices, customer data). You grant us a limited licence to process that data solely to provide the Service.

Our handling of your personal data is governed by our Privacy Policy, which forms part of these Terms.

You can export your data as CSV at any time, including after cancellation. We retain accounting records for the period required by Slovenian law.

The Service is provided "as is". We do not warrant that it will be uninterrupted, error-free, or fully meet your requirements. TandemHQ is operational tooling for flight businesses — it is not a flight planning, navigation, meteorological, or safety system, and must not be used as such. All flight decisions remain entirely the responsibility of the pilot in command.

To the maximum extent permitted by applicable law, in no event will Marakuja be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of profits, revenue, data, or business opportunity arising out of your use of the Service.

Our total aggregate liability for any claim arising under these Terms shall not exceed the amount you paid us for the Service in the twelve (12) months preceding the event giving rise to the claim.

Nothing in these Terms limits liability that cannot be limited under mandatory Slovenian or EU law (including liability for wilful misconduct or gross negligence).

These Terms are governed by the laws of the Republic of Slovenia, excluding its conflict of law rules. The UN Convention on Contracts for the International Sale of Goods (CISG) does not apply.

Any dispute arising out of or in connection with these Terms shall be subject to the exclusive jurisdiction of the courts of Celje, Slovenia. Consumers retain mandatory protections of the law of their country of residence.

We may update these Terms as the Service evolves. Material changes will be announced by email to active users at least 14 days before they take effect. Continued use after the effective date constitutes acceptance.

For any questions about these Terms, write to info@marakuja-tech.com or by post to:
MARAKUJA, športne storitve, d.o.o.
Ribarjeva ulica 5
3000 Celje, Slovenia