Terms of Use

Please read these Terms of Use ("Terms") carefully before using the Mustr mobile application ("App") and any associated services ("Services") operated by BlueNautics India Private Limited ("BlueNautics", "we", "us", or "our"). These Terms constitute a legally binding agreement between you and BlueNautics.

By downloading, installing, or using the App, you confirm that you have read, understood, and agree to be bound by these Terms. If you do not agree to these Terms in their entirety, you must not download, install, or use the App.

Governing Law

These Terms are governed by the laws of India, including the Information Technology Act, 2000, the Digital Personal Data Protection Act, 2023, and all rules and regulations made thereunder. Any disputes arising under these Terms shall be subject to the exclusive jurisdiction of the courts at Sonipat, Haryana, India.

1. About Mustr

Mustr is a professional mobile application designed for independent marine inspectors to plan, conduct, record, and manage vessel inspections under international maritime vetting frameworks including SIRE 2.0, RISQ, and CDI. The App uses an offline-capable architecture with an encrypted local working cache. Data synchronised to Mustr servers is the authoritative cloud record.

Mustr is a business-to-consumer (B2C) product. You are using Mustr in your personal professional capacity as an independent marine inspector. You are not acquiring Mustr as or on behalf of a company unless you have entered into a separate enterprise agreement with BlueNautics.

2. Eligibility and Registration

2.1 Eligibility

You must be at least 18 years of age to use Mustr. By using the App, you represent and warrant that you are 18 years of age or older and have the legal capacity to enter into binding agreements. The App is intended for use by marine inspection professionals. We do not knowingly collect or process personal data of individuals under 18 years of age.

2.2 Account Registration

To access most features of Mustr, you must create an account by providing your full name, a valid email address, and a password. You may also register using an enabled provider such as Google or Microsoft. By using a third-party sign-in provider, you authorise us to receive and use your profile information from that provider in accordance with our Privacy Policy and the relevant provider's terms.

2.3 Account Security

You are responsible for maintaining the confidentiality of your account credentials. You agree to notify us immediately at support@mustr.in if you become aware of any actual or suspected unauthorised access to your account. You are solely responsible for all activities that occur under your account. We shall not be liable for any loss or damage arising from your failure to maintain the security of your credentials.

2.4 Account Information Accuracy

You agree to provide accurate, current, and complete information during registration and to update such information as necessary to keep it accurate, current, and complete. We reserve the right to suspend or terminate accounts where we have reason to believe the information provided is inaccurate, false, or misleading.

3. Subscription Plans and Payment

3.1 Plan Tiers

Mustr is offered under three subscription tiers:

• Basic - Free of charge. Available indefinitely with no time limit. Includes two lifetime SIRE 2.0 inspections, PDF exports, and a monthly allocation of text AI chat credits.
• Pro - A paid monthly or annual subscription providing SIRE 2.0, RISQ, and CDI access, PDF, Excel, Word, and JSON reports, worklist management, deterministic analytics, AI observation rewriting, AI attachments, and a higher monthly AI credit allocation.
• Max - A paid monthly or annual subscription providing all Pro features plus longer AI context and output limits, the highest monthly AI credit allocation, on-device voice field notes, AI analytics, and eligible early-access features. Community capabilities are under development and are not an available paid entitlement unless separately announced.

3.2 Pricing

Current pricing is displayed within the App at Settings > Plan & Billing. We reserve the right to modify pricing at any time, provided that: (a) we give you at least 30 days' advance notice of any price change; (b) the new pricing will not apply until your next billing cycle after the notice period; and (c) you have the right to cancel your subscription before the new pricing takes effect.

3.3 Billing and Payment

Paid subscriptions are billed in advance on a monthly or annual cycle depending on the billing period you select. Purchases are processed by Apple, Google Play, or Razorpay as presented in the App and are subject to the selected provider's terms, store rules, cancellation process, and refund policy. We do not store your full card details on our servers.

3.4 Annual Plans

Annual subscriptions are billed as a single upfront payment covering 12 months of service. Annual plans are offered at a discount compared to the cumulative monthly price. If you cancel an annual subscription before the 12-month period expires, you will continue to have access to paid features until the end of the period already paid for, and no partial refunds will be issued unless required by applicable law.

3.5 Cancellation

You may cancel your subscription at any time through Settings > Plan & Billing > Manage Subscription. Cancellation takes effect at the end of your current billing period. You will continue to have access to paid features until your billing period expires, after which your account will revert to the Basic plan. We do not provide refunds for unused portions of a monthly subscription period.

3.6 Free Plan Limitations

The Basic (free) plan is provided as-is with no commitment of specific features or uptime beyond what is described at the time of subscription. We reserve the right to modify, restrict, or discontinue any feature of the Basic plan with reasonable notice. We will not impose charges on Basic plan users without their express consent.

4. Permitted Use

4.1 Licence Grant

Subject to your compliance with these Terms and payment of applicable subscription fees, BlueNautics grants you a limited, personal, non-exclusive, non-transferable, revocable licence to download, install, and use the App on a mobile device that you own or control, solely for your personal professional purposes as a marine inspector.

4.2 Restrictions

You agree that you will not:

• Copy, modify, adapt, translate, reverse engineer, decompile, disassemble, or create derivative works based on the App or any part thereof;
• Rent, lease, sell, sublicence, transfer, assign, or otherwise dispose of the App or your account to any third party;
• Use the App to provide services to third parties on a commercial bureau or service bureau basis;
• Use the App in any way that violates any applicable law or regulation, including maritime law, Indian law, or the law of any jurisdiction in which you operate;
• Attempt to gain unauthorised access to any part of the App, its servers, or any related systems or networks;
• Introduce any viruses, malware, or other technologically harmful material into the App or our systems;
• Use any automated means (bots, scrapers, crawlers) to access or extract data from the App;
• Remove, obscure, or alter any copyright notice, trademark, or other proprietary rights notice on or in the App;
• Use the App to store, upload, or transmit any unlawful, defamatory, fraudulent, or infringing content;
• Impersonate any person or entity or misrepresent your affiliation with any person or entity.

5. Inspection Data and Content

5.1 Your Data

All inspection records, observations, photographs, and related content you create using Mustr ("Your Data") remain yours. You grant BlueNautics a limited, non-exclusive licence to store, process, and transmit Your Data solely for the purpose of providing the Services to you. We do not claim ownership of Your Data.

5.2 Data Accuracy

You are solely responsible for the accuracy, completeness, and legality of Your Data. You acknowledge that Mustr is a tool to assist your inspection work and does not replace your professional judgment. Any observation, finding, or report generated through Mustr reflects your professional assessment and not that of BlueNautics.

5.3 Offline Data Storage

Mustr stores Your Data primarily on your device using a local database (SQLite). You are responsible for the security of your device and the data stored on it. We strongly recommend you enable device-level encryption and access control (such as a PIN or biometric lock) to protect Your Data when your device is on board a vessel. BlueNautics is not responsible for data loss resulting from device theft, loss, or failure.

5.4 Confidential Vessel Information

You may upload confidential pre-inspection documents (such as OCIMF pre-inspection packs) to Mustr. You are responsible for ensuring that you have the necessary authorisation to upload and process such documents. You must not upload documents that you are not authorised to handle. BlueNautics processes such documents only as your data processor as described in our Privacy Policy.

5.5 AI-Generated Content

Mustr includes an AI assistant powered by third-party large language models. AI-generated content (including insights, observation rewrites, and chat responses) is provided for informational and productivity purposes only. It does not constitute professional maritime, legal, or regulatory advice. You must exercise your own professional judgment when reviewing AI-generated content. BlueNautics makes no warranty regarding the accuracy, completeness, or fitness for purpose of AI-generated content.

5.6 Community Features

Community features are under development and are not currently an available subscription entitlement. Additional terms may apply before those features are made generally available.

6. Intellectual Property

The App, including all software, design, graphics, logos, and content (other than Your Data), is owned by BlueNautics India Private Limited or its licensors and is protected under applicable intellectual property laws including the Copyright Act, 1957 (India) and international treaties. "Mustr" and associated logos are trademarks of BlueNautics India Private Limited.

Nothing in these Terms transfers any intellectual property rights to you beyond the limited licence expressly granted in Section 4.1. All rights not expressly granted are reserved by BlueNautics.

7. Third-Party Services

Mustr integrates with certain third-party services, including:

• Google and Microsoft for enabled account authentication;
• Apple, Google Play, and Razorpay for subscription payment and entitlement verification;
• Google Gemini for enabled AI assistant and analysis functionality;
• Unsplash for photographic content within the application.

Your use of third-party services is governed by the respective terms and privacy policies of those services. BlueNautics is not responsible for the availability, accuracy, or conduct of any third-party service. We will notify you of material changes to third-party integrations.

8. Disclaimers and Limitation of Liability

8.1 No Professional Advice

Mustr is a productivity and organisational tool. It does not provide maritime, legal, regulatory, or professional advice. Nothing in the App or generated by the App should be construed as constituting such advice. You should consult appropriately qualified professionals for advice specific to your circumstances.

8.2 As-Is Basis

To the maximum extent permitted by applicable law, the App and Services are provided "as is" and "as available" without any warranties of any kind, whether express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, accuracy, or non-infringement. We do not warrant that the App will be uninterrupted, error-free, or free of viruses or other harmful components.

8.3 Limitation of Liability

To the maximum extent permitted by applicable law, BlueNautics India Private Limited shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including loss of profits, data, or business opportunities, arising out of or in connection with your use of the App, even if we have been advised of the possibility of such damages. Our total aggregate liability to you for any claim arising under or in connection with these Terms shall not exceed the total subscription fees paid by you to BlueNautics in the six months immediately preceding the event giving rise to the claim.

8.4 Indemnification

You agree to indemnify, defend, and hold harmless BlueNautics India Private Limited, its officers, directors, employees, and agents from and against any claims, liabilities, damages, losses, costs, and expenses (including reasonable legal fees) arising out of or in connection with: (a) your use of the App in violation of these Terms; (b) Your Data; (c) your violation of any law or third-party rights; or (d) any content you post on the Forum.

9. Termination

9.1 Termination by You

You may terminate your account at any time by contacting us at support@mustr.in or by using the account deletion option within the App (Settings > Account > Delete Account). Upon termination, your access to the App will cease at the end of your current billing period (for paid plans) or immediately (for the Basic plan).

9.2 Termination by Us

We reserve the right to suspend or terminate your account, with or without notice, if we have reasonable grounds to believe that you have violated these Terms, engaged in fraudulent activity, or caused harm to other users or to BlueNautics. In cases of serious breach, termination may be immediate. Where we terminate your account without cause, we will refund any prepaid subscription fees on a pro-rata basis.

9.3 Effect of Termination

Upon termination, your licence to use the App is revoked. You may export Your Data before termination. After termination, we will retain Your Data for a period of 30 days to allow you to reconsider, after which it will be permanently deleted in accordance with our Privacy Policy, unless longer retention is required by law.

10. Changes to These Terms

We may update these Terms from time to time to reflect changes in our Services, applicable law, or our business practices. When we make material changes, we will notify you by: (a) displaying a prominent notice within the App at next login; and (b) sending an email to the address registered on your account, at least 14 days before the changes take effect.

Your continued use of the App after the effective date of the updated Terms constitutes your acceptance of those changes. If you do not agree to the updated Terms, you must stop using the App and may terminate your account.

11. General Provisions

11.1 Entire Agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and BlueNautics regarding your use of the App and supersede all prior agreements, representations, and understandings relating to the same subject matter.

11.2 Severability

If any provision of these Terms is found to be unlawful, void, or unenforceable, that provision shall be deemed severed from these Terms without affecting the validity and enforceability of the remaining provisions.

11.3 Waiver

Our failure to enforce any right or provision of these Terms shall not constitute a waiver of such right or provision.

11.4 Assignment

You may not assign or transfer your rights or obligations under these Terms without our prior written consent. We may assign our rights and obligations to a third party in connection with a merger, acquisition, or sale of all or substantially all of our assets, provided that the assignee agrees to be bound by these Terms.

11.5 Force Majeure

We shall not be liable for any failure or delay in performance of our obligations under these Terms arising from causes beyond our reasonable control, including acts of God, natural disasters, war, pandemic, labour disputes, governmental actions, or failure of third-party infrastructure.

12. Contact Us

If you have any questions or concerns about these Terms, please contact us:

These Terms of Use are effective as of 18 July 2026.