Terms and Conditions

1. Who We Are

Prostagma (the "Service") is operated by ENDAXI CZ s.r.o., with its registered office at Dlouhá třída 1146/95, Havířov, 736 01, Czech Republic, Company ID (IČO): 26809869, registered in the Commercial Register kept by the Regional Court in Ostrava, Section C, Insert 25615 (the "Provider", "we", "us"). These Terms and Conditions ("Terms") govern the use of Prostagma by any registered account holder ("you", the "Customer").

By creating an account you confirm that you have read, understood, and agree to these Terms. If you are creating an account on behalf of a club, aeroclub, or other organization, you confirm that you are authorized to accept these Terms on that organization's behalf, and "you" refers to that organization as well as to you personally.

2. What Prostagma Is

Prostagma is a flight-logging and club-management tool for gliding clubs and similar aviation organizations. It lets a club record flights (including aerotows), manage aircraft and members with role-based access (Admin, Dispatcher, Pilot), view live OGN traffic and airspace overlays for situational awareness, and manage its subscription and billing. The exact features available depend on your subscription tier.

3. Registration and Account Security

You must provide accurate registration information and keep it up to date. You are responsible for keeping your login credentials confidential and for all activity carried out under your account, whether or not you authorized it, except where that activity results from our own breach of these Terms or applicable law. Club Administrators are responsible for deciding who within their organization is granted Dispatcher or Admin access, and for removing access when it's no longer appropriate.

4. Subscriptions, Trials, and Payment

Prostagma is offered on a paid subscription basis, in the tiers described on our pricing page. Where a free trial is offered, a valid payment method is still collected in advance; nothing is charged during the trial period, but the subscription converts to a paid one automatically once the trial ends unless you cancel before then. Payments are processed by our payment processor (Stripe) and are subject to their applicable terms.

Billing details (company name, tax identification numbers, address) entered for a club are the responsibility of that club's Administrator, and are used both to bill the subscription and, where legally required, to determine the correct VAT treatment of the sale. Subscription fees already paid are non-refundable, except where required by applicable law. We may suspend or, after reasonable notice, terminate access to a club's account if payment is not received.

5. Your Responsibility for Logged Data

Prostagma helps you record flights, but it does not verify the accuracy of what is entered. You are responsible for making sure that flight times, aircraft registrations, pilot and instructor assignments, and any other logged information are correct and satisfy any regulatory record-keeping obligations that apply to your club. We are not responsible for regulatory consequences, disputes, or financial discrepancies that result from incorrect or incomplete data entered by you or your club's users.

6. Not a Navigation, ATC, or Safety System

The live traffic map (based on Open Glider Network data) and the airspace overlays are provided for general situational awareness and administrative convenience only. They are not a certified navigation, radar, or collision-avoidance system, and are not a substitute for official flight planning sources (AIP, NOTAMs, and the relevant airspace-activation notices for your area). OGN position data can be delayed, incomplete, or simply absent for aircraft that aren't equipped with a compatible tracker, and airspace boundaries are shown on a best-effort basis and may not reflect last-minute changes.

Where the application shows an airspace zone (such as a TRA GA) as active, that status was set manually by a dispatcher at your club, not by any live official feed - we have no way of independently confirming it. Responsibility for flight safety, separation from other traffic, and compliance with applicable airspace restrictions rests with the pilot in command at all times; nothing in the Service changes that.

7. Service Availability

We aim to keep Prostagma available and to back up data daily, but the Service is provided on an "as available" basis, without a guarantee that it will always be uninterrupted, error-free, or free of security vulnerabilities. We may need to suspend access temporarily for maintenance, or modify or discontinue features, and will try to give reasonable notice when we can.

8. Limitation of Liability

To the extent permitted by Czech law, our aggregate liability for any claim arising out of or relating to the Service - whether in contract, tort, or otherwise - is limited to the subscription fees paid by your club in the twelve (12) months preceding the event giving rise to the claim, and we are not liable for indirect or consequential loss, including lost profit, lost data, or loss arising from Service downtime.

Nothing in these Terms excludes or limits liability that cannot lawfully be excluded or limited under Czech law - in particular, liability for death or personal injury, or for damage caused intentionally or through gross negligence (§ 2898 of Act No. 89/2012 Sb., the Civil Code). Where such liability applies, this section does not limit it.

9. Intellectual Property

Prostagma, including its software, design, and documentation, is owned by the Provider or its licensors and is protected by applicable intellectual property law. Subscribing to the Service gives you a right to use it as intended; it does not transfer ownership of the software to you. Flight and club data you enter remains yours - see our Privacy Policy for how we handle it.

10. Termination

You may stop using the Service and cancel your subscription at any time from the Club page. We may suspend or terminate access for non-payment, for a material breach of these Terms that isn't corrected within a reasonable time after notice, or where required by law. On termination, your right to use the Service ends; we retain data only as described in the Privacy Policy.

11. Changes to These Terms

We may update these Terms from time to time, for example to reflect new features or changes in the law. Where a change is material, we'll make a reasonable effort to let you know before it takes effect. Continuing to use the Service after a change takes effect means you accept the updated Terms.

12. Governing Law and Disputes

These Terms are governed by the law of the Czech Republic. Any dispute that cannot be resolved informally will be submitted to the courts of the Czech Republic with jurisdiction over the Provider's registered office, unless a mandatory rule of law provides otherwise (for example, mandatory consumer-protection rules where a Customer is acting as a consumer).

13. Contact

Questions about these Terms can be sent to [email protected].