Terms of Service

1. The Service

CrewSync ("the Service") is a schedule management and sharing tool. Features may be added or changed with notice, and some features (AI analysis, live flight lookups) may have usage limits.

2. Accounts

You must be at least 14 years old to create an account. Keep your account information accurate and your credentials secure. Do not upload or share someone else's schedule without their consent.

We may refuse sign-up or later restrict an account for: use of another person's identity or false information, prior restriction for breaching these terms, automated bulk sign-ups, or use prohibited by law.

3. Acceptable use

• No scraping, automated abuse, or resale of the Service or its APIs.
• No attempts to guess or brute-force other people's Sync, Safe Link or QR tokens.
• No unlawful content or content that violates others' rights.
• Employer material: whether — and how far — you may upload or share your employer's internal documents such as rosters is for you to confirm under your employer's rules, and you are responsible for it. The Service shows what you upload only to you and to the people you designate, and does not assess the legality of the upload on your behalf.

4. Your data and the licence you grant

You own the data you upload or enter (schedules, notes, photos). You grant the Service permission to store, process and display that data within the scope you choose — for example showing it to the people you designate via Safe Link, computing overlaps in OFF Sync, and rendering it in widgets and on your watch. This permission is limited to what those purposes need and ends when you delete the data or your account (except records we must keep by law). We never hand your data to third parties for advertising or marketing.

5. Paid services · auto-renewal · cancellation · refunds

• Products: Premium subscription (monthly or yearly), Sync Miles (one-time), Premium gifts. Prices and contents are those shown at checkout.
• Auto-renewal: subscriptions renew automatically for the same period and price until cancelled, charged to the payment method on file. We notify you before any price change takes effect.
• Cancellation: cancel any time; access continues until the end of the paid period. Web purchases: Account tab. iOS: Settings → Apple Account → Subscriptions. Android: Play Store → Payments & subscriptions.
• Refunds: follow the rules of where you paid. Web (Lemon Squeezy) purchases may be withdrawn within 7 days of payment, but once delivery of digital content has begun this right may be limited under Article 17(2) of the Korean E-Commerce Act, which we disclose before payment. In-app purchases follow Apple's and Google's refund procedures and cannot be refunded by the Service directly. See the Refund Policy.
• Sync Miles and gifts: Sync Miles are not redeemable for cash; a gift cannot be reversed once the recipient has used it.
• Minors: users under 19 may not make purchases without a legal guardian's consent; purchases made without it may be cancelled.

6. Important — informational only (disclaimer)

Schedules and flight information shown by the Service (including AI results and live status) are for reference only. Errors and delays are possible. Always confirm duty and flight decisions with your employer's or airline's official sources. To the extent permitted by law, we are not liable for losses caused by reliance on the Service (missed duties, missed flights, etc.).

7. Limitation of liability

To the extent permitted by law, the Service is not liable for indirect, special or consequential damages (including lost business or opportunities), and its total liability is capped at the amount you paid to the Service in the 12 months before the event — zero for free users. This does not limit liability for our wilful misconduct or gross negligence, or any liability that mandatory consumer-protection law does not allow to be limited.

8. Changes and interruptions

The Service may be suspended in whole or in part for maintenance, outages, failures of third-party providers (hosting, AI, payments, flight data) or force majeure. Planned maintenance is announced in advance; unplanned outages are announced after recovery. If the Service is discontinued we give 30 days' notice and a window to export your data.

9. Intellectual property

The Service's design, code and marks belong to the operator. Your uploaded data remains yours under Section 4.

10. Termination

You may delete your account at any time from the Account tab. Accounts in material breach of these terms may be restricted after notice (immediately in urgent cases). You may appeal a restriction at hello@crewsync.link.

11. Changes to these terms

We may amend these terms within the limits of applicable law. Amendments are posted on this page and announced in the Service at least 7 days before they take effect (30 days for changes that are unfavourable or material). Continued use after the effective date without objection constitutes acceptance; if you do not agree, you may stop using the Service by deleting your account.

12. Indemnification

If a third party brings a claim against the Service because you breached these terms, uploaded someone else's schedule or material without consent, or infringed another person's rights, you will cover the resulting losses (including reasonable legal costs). This does not apply where you were not at fault.

13. Disputes between users

Safe Link, OFF Sync and messages connect you with people you chose. You decide who sees what and who you connect with; the Service is not a party to disputes with those people (misunderstood sharing scope, message content, gifts and the like). We do provide block and report tools and act under Section 10 when a breach of these terms is confirmed.

14. App store terms

The iOS app is distributed through Apple's App Store and the Android app through Google Play. These terms are between you and the operator; Apple and Google are not parties. The operator, not Apple or Google, is responsible for the app and its support, and Apple and Google have no warranty obligation for it. If the app fails to conform to a warranty, any refund of the purchase price paid through Apple follows Apple's process, and any other claims, losses or costs are the operator's responsibility. Apple and Google are third-party beneficiaries of this section and may enforce it against you. You confirm you are not located in a country subject to a U.S. government embargo and are not on any U.S. government list of prohibited or restricted parties.

15. Feedback and trademarks

Suggestions and feedback you send may be used by the operator to improve the Service without compensation (this never includes your personal data or schedule data). The CrewSync name and logo are the operator's trademarks and may not be used without permission.

Copyright complaints: if you believe a photo or file on the Service infringes your copyright, send the location of the material, the basis of your right and your contact details to hello@crewsync.link. We remove confirmed infringing material and restrict repeat infringers under Section 10.

16. Operator

• Company: RINSONA Inc. (주식회사 린소나)
• Representative: 강인숙
• Registered office: 403, 202-dong, 19 Yeouidaebang-ro 35ga-gil, Yeongdeungpo-gu, Seoul, Republic of Korea
• Business registration number: 226-81-56105
• Email: hello@crewsync.link
• Phone: to be posted before paid sales begin
• E-commerce registration number: to be posted before paid sales begin

17. Governing law and general

These terms are governed by the laws of the Republic of Korea; disputes go to the courts with jurisdiction under the Korean Civil Procedure Act. If any part of these terms is held invalid, the rest remains in effect. These terms, the Privacy Policy and the Refund Policy are the entire agreement about your use of the Service. Contact: hello@crewsync.link · Effective: 2026-09-22