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CoastNav Terms of Service

Bundle ID: com.cnut.coastnav2  ·  iOS App  ·  Developer: Vinh Nguyen

Apple App Store Google Play Ready Globally Compliant
Effective Date: April 19, 2026 Last Updated: April 19, 2026 Version: 1.0 Developer: Vinh Nguyen Contact: customerservice@melove.io
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1. Introduction & Acceptance

Welcome to CoastNav. These Terms of Service ("Terms," "Agreement") are a legally binding agreement between you ("User," "you," "your") and Vinh Nguyen ("Developer," "we," "us," "our"), the individual developer of the CoastNav iOS application (the "App," "Service").

CoastNav is an offline-first maritime navigation application that provides global coastline maps, distance measurement tools, and nearest coastline navigation features for sailors, boaters, and coastal navigators worldwide. The App is distributed through the Apple App Store.

⚠️ PLEASE READ THESE TERMS CAREFULLY. By downloading, installing, accessing, or using the App, you agree to be bound by these Terms. If you do not agree to these Terms, do not download or use the App. Your continued use of the App after any modification to these Terms constitutes acceptance of the updated Terms.
🚨 NAVIGATION SAFETY WARNING: CoastNav is provided as a supplementary reference tool only. It must NOT be used as your sole or primary means of navigation. Always carry official nautical charts, follow maritime regulations, maintain proper watch, and use certified navigation equipment. The Developer is not responsible for any navigation decisions made using this App.

These Terms incorporate by reference our Privacy Policy, which forms part of this Agreement. They also operate alongside and are supplemented by Apple's standard Licensed Application End User License Agreement (EULA). In the event of a conflict between these Terms and Apple's standard EULA, Apple's EULA shall prevail.

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2. Definitions

App / Application
The CoastNav iOS software application (bundle ID: com.cnut.coastnav2), including all updates, upgrades, and supplemental content.
Developer
Vinh Nguyen, the individual developer and owner of CoastNav, operating independently (not a corporation or entity).
User / You
Any individual who downloads, installs, accesses, or uses the App.
Free Tier
The basic functionality available to all users including the bundled zoom level 7 coastline and land polygon datasets, during and after the 30-day free trial period (features may be restricted after trial expiry).
Premium / CoastNav Premium
The paid, non-consumable in-app purchase (com.coastnav2.premium.lifetime) that unlocks all zoom levels (z7–z12), the nearest coastline navigator, distance measurements, and all detail levels.
Map Data / Tile Data
Coastline and land polygon vector tile datasets (MBTiles format) derived from OpenStreetMap and served from the Developer's tile server for download and offline use.
Content
All information, data, text, graphics, code, and other materials within the App.
App Store
Apple's digital distribution platform through which the App is distributed.
Applicable Law
All laws, regulations, directives, and orders applicable to a User's use of the App in their jurisdiction.

3. Eligibility & Account Requirements

3.1 Age Requirements

You must be at least 13 years old (or the minimum age required to form a binding contract in your jurisdiction, whichever is higher) to use the App. Users in the European Economic Area must be at least 16 years old, or have parental or guardian consent, as required by GDPR Article 8 and applicable national law.

By using the App, you represent and warrant that you meet the applicable age requirement. If you are under 18 (or the age of majority in your jurisdiction), you must have obtained parental or guardian consent, and your parent or guardian must agree to these Terms on your behalf.

3.2 No Account Required

CoastNav does not require you to create an account or provide any personal information to use its core features. The App functions without registration, login, or any form of user identification.

3.3 Device & Operating System Requirements

3.4 Geographic Availability

The App is made available globally through the Apple App Store, subject to Apple's regional availability policies and applicable export control laws. The Developer reserves the right to restrict availability in certain jurisdictions as required by law.

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4. License Grant & Restrictions

4.1 Grant of License

Subject to your compliance with these Terms and payment of any applicable fees, the Developer grants you a limited, non-exclusive, non-transferable, revocable, personal license to download, install, and use the App on any Apple-branded device that you own or control, solely for your personal, non-commercial use, in accordance with these Terms and Apple's Usage Rules set forth in the App Store Terms of Service.

4.2 Free Tier

All users receive a 30-day free trial from the date of first launch, during which all Premium features are accessible. After the trial period, access to Premium features requires purchase of CoastNav Premium. The bundled zoom level 7 datasets remain available to all users at no charge indefinitely.

4.3 Premium License

Upon purchase of CoastNav Premium, the license grant is expanded to include all Premium features and datasets. This is a lifetime, non-consumable purchase — no subscription or recurring payment is required. The Premium license:

4.4 Restrictions

You may not:

4.5 Map Data License

The coastline and land polygon tile data downloaded through the App is derived from OpenStreetMap and is licensed under the Open Database License (ODbL) v1.0. Your use of the map data is subject to the ODbL in addition to these Terms. You must:

Full ODbL text: opendatacommons.org/licenses/odbl/1-0/

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5. In-App Purchases, Pricing & Refunds

5.1 CoastNav Premium

The App offers a single non-consumable in-app purchase, CoastNav Premium (product ID: com.coastnav2.premium.lifetime), which unlocks all premium features for a one-time fee. Current pricing is displayed on the App Store product page at the time of purchase. Prices may vary by region and are set by Apple's pricing tiers.

5.2 Payment Processing

All payments are processed exclusively by Apple Inc. through the App Store. We do not collect, store, or process any payment or billing information. By making a purchase, you also agree to Apple's Terms of Sale.

5.3 Taxes

Prices displayed may or may not include applicable taxes (VAT, GST, sales tax, etc.) depending on your jurisdiction. Apple collects and remits taxes in most jurisdictions where required by law. The Developer has no control over tax rates or collection.

5.4 Refund Policy

All purchases are final and non-refundable, except as required by applicable law or Apple's refund policies. Refund requests must be made directly to Apple:

Statutory Refund Rights by Jurisdiction

JurisdictionStatutory RightHow to Exercise
🇪🇺 EU/EEA 14-day cooling-off right for digital content purchases (EU Consumer Rights Directive 2011/83/EU, as updated by 2019/771), waived upon immediate download if you consent and acknowledge the waiver at purchase Contact Apple via reportaproblem.apple.com
🇬🇧 UK 14-day cancellation right under Consumer Contracts Regulations 2013, with same digital content waiver as EU Contact Apple via reportaproblem.apple.com
🇦🇺 Australia Consumer guarantees under Australian Consumer Law (Competition and Consumer Act 2010) for goods not fit for purpose or not as described Contact Apple or the Developer
🇨🇦 Canada Rights vary by province; contact the Developer for assistance Contact Apple or email us
All others Statutory rights as provided by your local consumer protection laws Contact Apple or email us

5.5 Restore Purchases

If you reinstall the App or use a new device with the same Apple ID, you may restore your Premium purchase at no charge using the in-app "Restore Purchases" function. This requires an internet connection to verify with Apple's servers. Family Sharing members may need to enable the purchase through Family Sharing in iOS Settings.

5.6 Price Changes

We reserve the right to change pricing at any time. Any price change will be reflected on the App Store product page before it takes effect. Your completed purchase is honoured at the price you paid; no additional payment will be required for features included at the time of your purchase.

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6. Acceptable Use Policy

6.1 Permitted Uses

You may use CoastNav for:

6.2 Prohibited Uses

You agree that you will not use the App:

6.3 Critical Safety Obligations

🚨 The following safety obligations are conditions of your license to use the App:
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7. Content, Data Accuracy & Map Data

7.1 Map Data Accuracy

The coastline data provided in CoastNav is derived from OpenStreetMap contributions (data dated approximately August 2025). By its nature as a crowdsourced dataset, this data:

⚠️ The map data in CoastNav is NOT equivalent to official nautical charts. It does not meet the standards of the International Hydrographic Organization (IHO) or any national hydrographic service. Do not use it as a substitute for ECDIS charts, paper charts, or other certified navigational aids.

7.2 Data Updates

The Developer will endeavor to provide updated map tile datasets periodically, but does not guarantee any specific update frequency or schedule. You are responsible for downloading updated datasets when available. Older datasets may become increasingly inaccurate over time.

7.3 Availability of Download Server

The tile download server at tiles.kidneydietfood.com is provided on a best-effort basis. The Developer does not guarantee uninterrupted availability of the download service and is not responsible for any losses arising from server downtime or unavailability. The core offline functionality of the App is not affected by server availability once data is downloaded.

7.4 User-Generated Content

The App does not currently support user-generated content, community contributions, or social features. All data within the App is either Developer-provided or sourced from OpenStreetMap.

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8. Disclaimers & Warranties

⚠️ THIS SECTION CONTAINS IMPORTANT LEGAL DISCLAIMERS. PLEASE READ CAREFULLY.

8.1 "As Is" Disclaimer

THE APP AND ALL CONTENT, DATA, FEATURES, AND SERVICES ARE PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, ACCURACY, COMPLETENESS, RELIABILITY, OR TIMELINESS.

8.2 No Navigation Warranty

THE DEVELOPER MAKES NO WARRANTY THAT THE APP, MAP DATA, OR ANY CALCULATIONS (INCLUDING DISTANCE MEASUREMENTS AND COASTLINE PROXIMITY ESTIMATES) ARE ACCURATE, COMPLETE, CURRENT, OR SUITABLE FOR ANY PARTICULAR NAVIGATIONAL PURPOSE. COASTLINE DATA IS NOT CERTIFIED NAVIGATIONAL INFORMATION AND MUST NOT BE USED AS SUCH.

8.3 Service Continuity

THE DEVELOPER DOES NOT WARRANT THAT THE APP WILL BE UNINTERRUPTED, ERROR-FREE, SECURE, OR FREE OF VIRUSES OR OTHER HARMFUL COMPONENTS; THAT DEFECTS WILL BE CORRECTED; OR THAT THE DOWNLOAD SERVER WILL BE CONTINUOUSLY AVAILABLE.

8.4 Jurisdictions with Implied Warranties

SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF CERTAIN WARRANTIES OR LIMITATIONS ON APPLICABLE STATUTORY RIGHTS OF A CONSUMER. IN SUCH CASES, THE ABOVE EXCLUSIONS AND LIMITATIONS WILL APPLY TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW.

In particular, users in Australia, New Zealand, the UK, and the EU may have statutory rights that cannot be excluded. Nothing in these Terms limits such rights.

8.5 Third-Party Services

The App processes in-app purchases through Apple's StoreKit service. The Developer is not responsible for any failures, errors, or disputes arising from Apple's payment processing or App Store services.

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9. Limitation of Liability & Indemnification

9.1 Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL THE DEVELOPER, HIS AGENTS, LICENSORS, OR SERVICE PROVIDERS BE LIABLE FOR ANY:

ARISING OUT OF OR RELATED TO YOUR USE OF OR INABILITY TO USE THE APP, WHETHER BASED ON WARRANTY, CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY, OR ANY OTHER LEGAL THEORY, EVEN IF THE DEVELOPER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

THE DEVELOPER'S TOTAL CUMULATIVE LIABILITY TO YOU FOR ANY CLAIMS ARISING FROM OR RELATED TO THESE TERMS OR THE APP SHALL NOT EXCEED THE GREATER OF: (a) THE AMOUNT YOU PAID TO THE DEVELOPER FOR THE APP IN THE TWELVE (12) MONTHS PRECEDING THE CLAIM, OR (b) USD $10.00.

9.2 Jurisdictions with Non-Excludable Liability

Certain jurisdictions do not allow the exclusion or limitation of liability for personal injury, gross negligence, willful misconduct, or consumer protection violations. In such jurisdictions, the limitations above apply only to the fullest extent permitted by law. Nothing in these Terms limits liability for death, personal injury, or fraud caused by the Developer's negligence.

9.3 Indemnification

To the maximum extent permitted by law, you agree to defend, indemnify, and hold harmless the Developer from and against any claims, liabilities, damages, judgments, awards, losses, costs, expenses, and fees (including reasonable attorney fees) arising out of or relating to:

9.4 Essential Basis

You acknowledge that the Developer has offered the App, including its pricing, in reliance upon the disclaimers and limitations of liability set forth herein, and that they form an essential basis of the bargain between the parties. Without these limitations, the App could not be offered at its current price point.

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10. Intellectual Property

10.1 Developer's Intellectual Property

The App, including all software code, design elements, graphics, icons, user interface elements, algorithms, and the selection and arrangement of content (excluding OpenStreetMap data), is the exclusive intellectual property of Vinh Nguyen and is protected by copyright, trade secret, and other applicable laws.

© 2026 Vinh Nguyen. All rights reserved.

No right, title, or interest in or to the App or its content is transferred to you as a result of using the App. Your only rights are the limited license rights expressly set forth in Section 4 of these Terms.

10.2 Trademarks

"CoastNav" and the CoastNav app icon are the property of Vinh Nguyen. Apple, iPhone, iOS, iPad, App Store, and StoreKit are trademarks of Apple Inc., registered in the U.S. and other countries. OpenStreetMap is a trademark of the OpenStreetMap Foundation. All other trademarks are the property of their respective owners.

10.3 OpenStreetMap Attribution

Map data: © OpenStreetMap contributors, made available under the Open Database License (ODbL). Coastlines derived from osmdata.openstreetmap.de.

10.4 Feedback

If you provide feedback, suggestions, or ideas about the App ("Feedback"), you grant the Developer a non-exclusive, royalty-free, perpetual, irrevocable, worldwide license to use, incorporate, and exploit the Feedback in any manner without obligation or compensation to you.

10.5 DMCA / Copyright Infringement Notice

If you believe content in the App infringes your copyright, please send a notice to customerservice@melove.io containing: (1) identification of the copyrighted work; (2) identification of the infringing material; (3) your contact information; (4) a statement of good faith belief; (5) a statement of accuracy under penalty of perjury; and (6) your physical or electronic signature.

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11. Termination & Suspension

11.1 Termination by You

You may terminate this Agreement at any time by deleting the App from all your devices. Deleting the App does not entitle you to a refund of any amounts paid, except as required by applicable law or Apple's refund policies.

11.2 Termination by Developer

The Developer reserves the right, in our sole discretion, to terminate or suspend your access to the App or its features (including the tile download service) immediately, without notice, if:

11.3 Effect of Termination

Upon termination: (a) all license rights granted under these Terms cease immediately; (b) you must stop using the App; (c) Sections 2, 7, 8, 9, 10, 12, and 13 shall survive termination and remain in full force.

Termination does not affect your ownership of already-downloaded map data stored on your device. Your Premium purchase status is determined by your Apple ID and is governed by Apple's policies.

11.4 Discontinuation of Service

The Developer may discontinue the App or any part of it (including the download server) at any time with reasonable notice where practicable. In the event of App discontinuation, you retain the right to use previously downloaded map data and App features that work offline, subject to iOS/iPadOS compatibility. No refunds are guaranteed upon discontinuation except as required by law.

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12. Dispute Resolution, Governing Law & Jurisdiction

12.1 Informal Resolution

Before initiating any formal legal proceeding, you agree to first contact us at customerservice@melove.io with a written description of the dispute and your contact information, and allow 30 days for the Developer to attempt to resolve the dispute informally. Most issues can be resolved this way.

12.2 Governing Law

These Terms shall be governed by and construed in accordance with the laws of Vietnam, without regard to conflict of law principles, except where mandatory local consumer protection laws in your jurisdiction provide otherwise. Specifically:

JurisdictionGoverning Law Note
🇪🇺 EU/EEA EU consumer protection laws provide mandatory protections that cannot be waived by choice of law; these apply notwithstanding Vietnamese governing law
🇬🇧 UK UK consumer law (Consumer Rights Act 2015, Consumer Contracts Regulations 2013) provides mandatory protections
🇦🇺 Australia Australian Consumer Law cannot be excluded; applies in addition to these Terms
🇺🇸 California California residents retain rights under California Consumer Protection laws including CCPA/CPRA
🇨🇦 Canada Canadian provincial consumer protection laws may apply

12.3 Dispute Resolution

Any dispute, controversy, or claim arising out of or relating to these Terms or the App that cannot be resolved informally shall be resolved through binding arbitration administered in accordance with the rules applicable in the Developer's jurisdiction (Vietnam), or in the competent courts of Vietnam, at the Developer's election.

Exception: Users in jurisdictions where mandatory local courts apply (EU, UK, Australia, etc.) retain the right to bring proceedings before their local competent courts, notwithstanding this clause.

12.4 Class Action Waiver

To the maximum extent permitted by applicable law, you waive any right to bring claims as a class action or representative action. This waiver does not apply to users in the EU, UK, or other jurisdictions where such waivers are unenforceable under consumer law.

12.5 Apple as Third-Party Beneficiary

You acknowledge and agree that Apple, and Apple's subsidiaries, are third-party beneficiaries of these Terms, and that, upon your acceptance of these Terms, Apple will have the right (and will be deemed to have accepted the right) to enforce these Terms against you as a third-party beneficiary thereof.

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13. Regional & Jurisdiction-Specific Terms

13.1 European Union / EEA — Digital Services Act & Consumer Rights

🇪🇺 EU DSA / CRA

For users in the EU/EEA, the following additional terms apply:

13.2 United Kingdom

🇬🇧 UK CRA

13.3 United States

🇺🇸 USA

13.4 Australia & New Zealand

🇦🇺 ACL 🇳🇿 CGA

13.5 Canada

🇨🇦 Canada

13.6 Brazil

🇧🇷 CDC/LGPD

13.7 Japan

🇯🇵 Japan

13.8 South Korea

🇰🇷 Korea

13.9 Vietnam

🇻🇳 Vietnam

13.10 Apple App Store — Compliance

🍎 Apple Guidelines

These Terms comply with Apple App Store Review Guidelines, including:

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14. General Provisions

14.1 Entire Agreement

These Terms, together with the Privacy Policy, constitute the entire agreement between you and the Developer regarding your use of the App, and supersede all prior agreements, representations, and understandings between the parties.

14.2 Severability

If any provision of these Terms is found to be invalid, illegal, or unenforceable by a court of competent jurisdiction, that provision shall be modified to the minimum extent necessary to make it enforceable, and all remaining provisions shall remain in full force and effect.

14.3 No Waiver

The Developer's failure to enforce any provision of these Terms shall not be construed as a waiver of the right to enforce that provision in the future. Any waiver must be in writing and signed by the Developer.

14.4 Assignment

You may not assign or transfer any of your rights or obligations under these Terms without the Developer's prior written consent. The Developer may freely assign these Terms in connection with a merger, acquisition, or sale of assets.

14.5 Force Majeure

The Developer shall not be liable for any failure or delay in performance resulting from causes beyond reasonable control, including natural disasters, government actions, internet outages, cyberattacks, or acts of third parties (including Apple).

14.6 Relationship of the Parties

Nothing in these Terms creates any partnership, joint venture, agency, employment, or franchise relationship between you and the Developer.

14.7 Notices

Legal notices to the Developer must be sent to customerservice@melove.io. Notices to you may be made via the App Store, in-app notifications, or updates to this page.

14.8 Accessibility

The Developer is committed to making the App accessible to users with disabilities. If you encounter accessibility barriers, please contact us and we will endeavor to address them.

14.9 Language

These Terms are written in English. Translations provided for convenience only. In the event of conflict between the English version and a translation, the English version prevails, unless local law mandates otherwise (e.g., French language requirements in Quebec).

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15. Changes to These Terms

The Developer reserves the right to modify these Terms at any time. When we make material changes, we will:

Your continued use of the App after the effective date of any changes constitutes your acceptance of the new Terms. If you do not agree to the modified Terms, you must stop using the App and delete it from your devices.

We will not retroactively apply material changes to reduce your rights in relation to purchases already made.

✅ The current version of these Terms is always accessible from within the App (Settings → Terms of Service) and at marssd.com/coastnav/termsofservice.html
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16. Contact Information

For questions, concerns, or legal notices related to these Terms of Service:

📧 Developer Contact
Developer: Vinh Nguyen
Email: customerservice@melove.io
Subject Line: CoastNav – Legal / Terms Inquiry
Response Time: Within 30 days
App Support: customerservice@melove.io
🍎 App Store Support
Purchase Issues: reportaproblem.apple.com
App Store Support: support.apple.com