Privacy & Terms
Short, practical, and bridge-focused.
Privacy (Offline-first)
Last updated: 04 Mar 2026
Categories of processed data
CaptainCalc operates offline-first by default. Entered maritime data (voyage logs, stability cases, draft surveys, tank/ROB data, checklists, etc.) is kept on the device.
Data types that may be processed within the app include:
- User inputs: Values manually entered into calculation screens and user notes.
- Location data (optional): Used only for features that require location; most of the app works without permission.
- Technical diagnostic data (by user request): For debugging purposes, the user may choose to share app logs / screenshots. The sharing control remains with the user.
- Purchase/subscription metadata (platform level): Subscription and payment flows are subject to the rules of the purchasing platform (Google Play / App Store).
Third-party services
- Payment/subscription: Payment/subscription operations are processed through Google Play / App Store; card/payment details are never seen or stored by CaptainCalc.
- Open source components: License and attribution information for third-party components used by the app is listed on the Licenses page.
Note: If analytics, crash reporting, or a similar service is added to the app in the future, this policy will be updated and clearly stated to the user.
Crash reporting (optional)
If the "Crash Reporting" option is enabled in the app, Firebase Crashlytics may be used to improve stability.
In the event of a crash/ANR, Crashlytics may collect diagnostic data such as stack traces, relevant app state, device metadata, and a random installation ID (Crashlytics installation UUID). If this feature is disabled, no reports are sent.
The automatic transmission of personal content (your records, calculation inputs) is not targeted; logs are also prepared with masking/sanitization as much as possible. When turned off, all unsent reports are deleted from the device.
Retention and deletion
- Data on the device: Stored on the device by default. It can be removed via in-app deletion actions and/or uninstalling the app.
- Shared logs/screenshots: If a user sends logs/screenshots via email for support, they are processed solely to resolve the issue and deleted after a reasonable period (e.g., 90 days).
Note: If operating system cloud backup is enabled on your phone, some app data may be included in the OS backup mechanism. This control depends on your device/account settings.
Children's privacy
CaptainCalc is not intended for children. We do not knowingly collect personal data from anyone under the age of 13.
Security
Data is kept on the device and protected by the operating system's security mechanisms (app sandbox, access permissions, etc.). Automatic data sharing over the internet is not mandatory.
Contact
For privacy and data requests: developer@captaincalc.com.tr
Navigation safety disclaimer
CaptainCalc is a decision-support tool for maritime calculations and reference. It does NOT replace class-approved loading computers, official stability booklets, ECDIS, or mandatory bridge procedures. The Master remains fully responsible for the vessel’s safety and compliance.
End User License Agreement (EULA)
Effective date: 20 Feb 2026 • Licensor: Ender Soyuince • Contact: developer@captaincalc.com.tr
License scope
The Software is not sold; it is licensed to you as a non‑exclusive, non‑transferable, limited right of use, subject to these terms. The license is personal.
- One account / one device: The subscription entitlement is intended for use on a single device. Concurrent use on multiple devices is prohibited.
- Restrictions: no copying/redistribution, renting/selling, reverse engineering (decompile/disassemble), attempts to access source code, modification/derivatives, bypassing license verification.
- Third‑party: The App may include open‑source components and NAIF kernel data. Licenses/attributions are listed on the Licenses page.
No warranty & limitation of liability
Provided “as is” without a guarantee of uninterrupted or error‑free operation. No liability for indirect/consequential damages; total liability is limited to subscription fees paid for the relevant period.
Subscription Terms
Model
Plans, durations, and pricing are shown in-app. Features are available while the subscription is active.
Auto-renewal
Subscriptions may auto‑renew until canceled. Renewal/billing is governed by the purchase platform (App Store / Google Play).
Cancellation
Cancel via the platform’s subscription management UI. Cancellation typically takes effect at the end of the current billing period.
- One account / one device applies throughout the subscription. When changing devices, deactivate/sign out on the old device; support re‑activation may be required.
- Refunds are handled under the purchase platform’s refund policies.
- Abuse (sharing, bypass attempts, fraud) may result in suspension or termination.
Trademark Notice
CaptainCalc, the CaptainCalc logo, and related branding are owned by Ender Soyuince. Unauthorized use, creating a false impression of official affiliation, or publishing clones/derivatives is prohibited.