Terms of Service

Article 1 — Agreement to Terms

By downloading, installing, or using MechLog (the "App"), you ("User") agree to be bound by these Terms of Service ("Terms"). If you do not agree, please do not use the App.

The App is a personal vehicle maintenance journal for record-keeping and cost-tracking purposes. It is not a mechanical advisory service, safety inspection tool, or professional vehicle diagnostic service.

Article 2 — No Professional Advice

The App does not provide mechanical, safety, legal, or financial advice of any kind. All calculations, statistics, and information displayed are for reference and record-keeping purposes only and should not be interpreted as:

• Professional mechanical or maintenance recommendations
• Vehicle safety assessments
• Tax or accounting guidance
• Insurance advice
• Professional consulting of any kind

Users bear full responsibility for their own vehicle maintenance decisions. Always consult a qualified mechanic for safety-critical repairs and inspections. The developer ("Provider") is not a licensed mechanic or automotive professional.

Article 3 — Disclaimer of Warranties and Limitation of Liability

The App is provided "as is." To the maximum extent permitted by applicable law, the Provider is not liable for:

• Indirect or incidental damages arising from use or inability to use the App
• Data corruption, loss, or deletion
• Vehicle damage or safety incidents
• Decisions made based on App calculations or reminders
• Business interruption

Article 4 — Data Loss and Backup Responsibility

To the maximum extent permitted by applicable law, the Provider is not liable for data loss or corruption resulting from:

• App crashes or bugs
• Device failure, loss, or theft
• Software updates
• Backup or restore failures

Article 5 — Calculation Accuracy

While the Provider strives to provide accurate calculations, no warranty is made regarding the accuracy of:

• Fuel economy calculations (based on the full-tank method — actual results may vary)
• Running cost totals and summaries
• Any other mathematical computations in the App

Fuel economy is calculated using the full-tank method. Partial fill-ups are excluded from fuel economy calculations. Users should independently verify calculations for important decisions.

Article 6 — User Obligations and Prohibited Activities

Users agree to:

• Use the App for lawful purposes only
• Comply with all applicable laws and regulations
• Not reverse-engineer or decompile the App
• Not use the App for commercial purposes without authorization
• Not circumvent Pro version restrictions by unauthorized means

Article 7 — Third-Party Services

The App integrates with the following third-party services. The Provider is not responsible for the actions, fees, or policies of those services. Your use of third-party services is subject to their own terms and privacy policies.

• Apple App Store / Google Play Store — payment processing for Pro subscriptions
• RevenueCat, Inc. — subscription management and purchase receipt validation. RevenueCat's terms: https://www.revenuecat.com/terms
• Firebase Authentication (Google LLC) — user sign-in. Firebase's terms: https://firebase.google.com/terms
• Google Drive — Pro cloud backup on Android. Subject to Google's Terms of Service.
• iCloud — Pro cloud backup on iOS. Subject to Apple's Terms of Service.

Article 8 — Subscription and Payment Terms

Pro version subscriptions are processed through Apple App Store or Google Play Store. The Provider:

• Does not process payments directly
• Cannot handle refunds directly (submit refund requests to the respective store)
• May change prices with reasonable prior notice
• May discontinue Pro features with reasonable prior notice

Cancellation

• Cancel your subscription through the respective store (cancellation from within the App is not available)
• Android: Google Play → Profile icon → Payments & subscriptions → Subscriptions → MechLog → Cancel subscription
• iOS: Settings → [Your Name] → Subscriptions → MechLog → Cancel Subscription
• Cancellation takes effect at the end of the current billing period; access continues until then

Refunds

• Subscription fees are generally non-refundable except as required by applicable law
• Submit refund requests directly to Google Play or Apple App Store

Article 9 — Intellectual Property

All content, features, design, and code of the App are owned by or licensed to the Provider and protected by copyright law. Users are granted a limited license to use the App for personal, non-commercial purposes only.

Article 10 — Changes to Terms

The Provider may modify these Terms. For material changes, reasonable prior notice will be given via an app update or in-app notice. Continued use of the App after changes constitutes acceptance of the revised Terms.

The Provider reserves the right to:

• Modify, suspend, or discontinue the App
• Update system requirements
• Change Pro features or pricing (with reasonable prior notice)

App Discontinuation

If the App is permanently discontinued, the Provider will:

• Notify users at least 14 days in advance via an app update or in-app notice
• Advise active subscribers to cancel their subscriptions via the respective store to avoid further charges

Article 11 — Suspension and Termination

The Provider may suspend or terminate a User's access for:

• Material breach of these Terms
• Fraudulent or illegal activity
• Other compelling reasons

Article 12 — Indemnification

Users agree to indemnify and hold the Provider harmless from any claims, losses, or damages arising from a breach of these Terms or misuse of the App.

Article 13 — Dispute Resolution and Governing Law

These Terms are governed by the laws of Japan. Disputes arising from these Terms or use of the App shall first be resolved through good-faith negotiation. If unresolved, the Tokyo District Court shall have exclusive jurisdiction as the court of first instance.

Where mandatory consumer protection laws apply, those laws shall take precedence.

Article 14 — Severability

If any provision of these Terms is found to be unenforceable or invalid, that provision will be modified to the minimum extent necessary and the remaining provisions will continue in full force.