Terms of Service

1. About These Terms

These Terms of Service ("Terms") are an agreement between you and Yurii I., an individual developer resident in Poland ("we", "us", "our"), who operates the AI Mechanic: Engine Sound Scan Android application (the "App") and the website checkengine.space (the "Website", together the "Service"). Contact: contact@checkengine.space.

1.1 Acceptance

By accepting these Terms in the App or by using the Service, you agree to these Terms. Our Privacy Policy explains how we handle personal data. If you do not agree, do not use the Service.

1.2 Age

You must be at least 16 years old to use the Service. By using it, you confirm that you meet this requirement.

1.3 Your Statutory Rights

If you use the Service as a consumer, nothing in these Terms excludes or limits rights you have under mandatory consumer protection law of the country where you live. If a provision of these Terms conflicts with such law, that law prevails.

1.4 Technical Requirements

The App requires a compatible Android device as stated on its Google Play page, a working microphone, microphone permission and an internet connection. The Website works in current versions of common web browsers.

2. The Service

The App lets you record engine and vehicle sounds and receive an AI-generated analysis, which may include possible causes, suggested next steps and indicative repair cost ranges. The Website provides information about the App and educational guides. It does not analyze recordings.

We may update the Service to fix problems, maintain security, comply with the law or improve it. If a change materially and negatively affects paid features you have already bought, we will tell you in advance and you may cancel. Where the law requires, you will receive a proportionate refund.

3. Your Recordings and Information

You keep ownership of the recordings and vehicle information you submit ("Your Content"). You grant us a non-exclusive, worldwide, royalty-free licence to store, reproduce, transmit and process Your Content only as needed to operate the Service, including sending it to our AI provider to generate results and keeping your scan history. This licence ends when you delete Your Content, except for copies we must keep under the Privacy Policy or the law.

We use Google's paid Gemini API to generate results. Google does not use Your Content to improve its products. See Section 5 of the Privacy Policy.

You agree that Your Content:

• is recorded by you or you have the right to submit it;
• is a recording of vehicle sounds, and does not intentionally capture other people's conversations or personal information without their consent;
• is not illegal, infringing, harmful or abusive.

4. Paid Features

Some features require payment, for example a recurring subscription or a one-time lifetime purchase, and a free trial may be available. The App shows the price, billing period, any trial length and the features included before you confirm a purchase. Purchases are processed by Google Play, whose terms also apply.

4.1 Automatic Renewal

Subscriptions renew automatically at the end of each billing period and you are charged the then-current price unless you cancel before the renewal date. If we change the price, Google Play will notify you in advance and, where required, ask for your agreement.

4.2 Free Trials

If an offer includes a free trial, the subscription starts and you are charged when the trial ends unless you cancel before then. Trial eligibility is determined by Google Play.

4.3 Cancelling

You can cancel at any time in Google Play under Payments & subscriptions. You keep access until the end of the period you have paid for. Uninstalling the App does not cancel a subscription.

4.4 Lifetime Purchases

A lifetime purchase is a one-time payment for the features included in that offer for as long as we make the App available. It is linked to your Google Play account and is not transferable.

4.5 Refunds and Right of Withdrawal

Refund requests are handled through Google Play under its refund policies. You may also contact us and we will help where we can.

If you are a consumer in the EU, EEA or UK, you generally have 14 days from purchase to withdraw from a contract concluded online. If you ask for a subscription to start during the withdrawal period, you must pay a proportionate amount for the time you used. For one-time digital content such as a lifetime purchase, you lose the right of withdrawal once supply begins if you expressly agreed to immediate supply and acknowledged that you would lose this right. To withdraw, use Google Play's refund process or email us a clear statement of your decision. Your statutory rights are not affected by this Section.

5. AI Results Are Not a Professional Diagnosis

5.1 Nature of AI Results

IMPORTANT: results are generated automatically by artificial intelligence from a sound recording and the information you provide. They are suggestions for information only, not a confirmed mechanical diagnosis, inspection, safety assessment or repair quote.

5.2 Limitations

AI results:

• may be inaccurate, incomplete or misleading;
• depend on recording quality, background noise and the information you provide;
• cannot physically inspect your vehicle or read its fault codes;
• may miss serious or safety-critical problems;
• include repair cost ranges that are indicative only and vary by vehicle, region and workshop.

A result such as "No Anomalies" does not mean your vehicle is safe to drive.

5.3 Verify With a Professional

Have a qualified mechanic confirm any problem before you repair, buy, sell or continue driving a vehicle based on an AI result.

If you notice symptoms affecting safety, including but not limited to:

• brakes;
• steering or suspension;
• engine failure or overheating;
• transmission problems;
• electrical failures;
• fuel leaks or fuel system issues;

stop driving when it is safe to do so and seek professional help. Do not rely on the App for safety-critical decisions. Always follow your vehicle's warning lights and messages.

5.4 No Professional Relationship

Using the Service does not create a mechanic-client or other professional relationship between you and us.

6. Acceptable Use

You must not:

• upload malicious files, or send automated or excessive requests to the Service;
• circumvent usage limits, payments or other technical restrictions;
• reverse engineer, decompile or extract the App's code, prompts or models, except where the law expressly permits this despite this restriction;
• resell the Service or use it for commercial fleet diagnostics without our written permission;
• use the Service in breach of the law or these Terms.

If you seriously or repeatedly breach this Section, we may restrict, suspend or end your access. We will act proportionately and, unless the law or security reasons prevent it, tell you why and give you a chance to respond.

7. Intellectual Property

We and our licensors own all rights in the Service, including the software, design, text, guides and trademarks. We grant you a personal, non-exclusive, non-transferable licence to use the App on devices you own or control, for non-commercial purposes, in line with these Terms and Google Play's terms. Google Play and the Google Play logo are trademarks of Google LLC.

8. Third-Party Services

The Service relies on third-party services such as Google Play and Google's Gemini API. Their own terms apply to your use of them. We are not responsible for their availability or content, but this does not limit our responsibility for the Service we provide to you.

9. Availability and Warranties

We work to keep the Service available but do not guarantee that it will be uninterrupted or error-free. To the extent permitted by law, the Service is provided "as is" and "as available", and we make no promise that AI results will be accurate, complete or suitable for a particular purpose.

If you are a consumer, you have statutory rights where digital content or services do not conform to the contract, and these Terms do not exclude them. By accepting these Terms, you expressly accept that AI results have the limitations described in Section 5.

10. Limitation of Liability

10.1 What We Do Not Limit

Nothing in these Terms limits or excludes our liability for death or personal injury caused by our negligence, for damage caused intentionally or through gross negligence, for fraud, or any other liability that cannot be limited or excluded by law.

10.2 Limits

Subject to Section 10.1, we are not liable for:

• loss or damage resulting from acting on an AI result without having it checked by a qualified professional, as required by Section 5;
• indirect or consequential loss, or loss that was not reasonably foreseeable when you started using the Service;
• loss of profit, business or business opportunity where you use the Service for business purposes.

10.3 Maximum Amount

Subject to Section 10.1, our total liability for all claims relating to the Service is limited to the greater of the amount you paid for the Service in the 12 months before the claim and EUR 50.

10.4 Consumers in the EU, EEA and UK

If you are a consumer living in the EU, EEA or UK, Sections 10.2 and 10.3 apply only to the extent permitted by the mandatory law of your country.

11. Indemnity for Business Use

If you use the Service for business purposes, you will compensate us for claims, losses and reasonable costs arising from Your Content or your breach of these Terms. This Section does not apply to consumers.

12. Ending the Agreement

You may stop using the Service at any time. To end paid access, cancel your subscription in Google Play. You can ask us to delete your data as described in the Privacy Policy. We may end these Terms for a serious breach under Section 6, or if we stop providing the Service, in which case we will give you reasonable notice and, where the law requires, a proportionate refund for any prepaid period.

13. Changes to These Terms

We may change these Terms for valid reasons, such as changes to the Service, the law or our providers. We will give you at least 14 days' notice of material changes in the App or on the Website, unless an immediate change is required by law or for security. Changes do not apply retroactively. If you do not agree, you may stop using the Service and cancel any subscription before the changes take effect.

14. Complaints and Disputes

You can send complaints about the Service to contact@checkengine.space. Please describe the issue and the outcome you expect. We will reply within 14 days.

If you are a consumer, you may also use out-of-court dispute resolution, such as your local consumer ombudsman (in Poland, a municipal or district consumer ombudsman, rzecznik konsumentów) or the consumer dispute body of your country. We are not obliged to participate in alternative dispute resolution unless the law requires it.

15. Governing Law and Courts

These Terms are governed by the laws of Poland. If you are a consumer, you also keep the protection of the mandatory laws of the country where you live, and you may bring proceedings in the courts of that country or of Poland. If you use the Service for business purposes, disputes will be resolved by the courts having jurisdiction over our place of residence in Poland.

16. General

If any provision of these Terms is found invalid or unenforceable, the rest remain in force. If we do not enforce a right immediately, we do not waive it. We may transfer these Terms to a successor that takes over the Service, such as a company we set up, if this does not reduce your rights; we will notify you in advance. These Terms, together with the Privacy Policy and the purchase terms shown in the App, are the entire agreement between us about the Service.

17. Contact

Questions or notices about these Terms: contact@checkengine.space