SailViewer privacy
Your sailing library is local by default.
How the new SailViewer app handles your logs, access, diagnostics and support information. Updated 29 September 2026.
Who is responsible
Master Sailing j.d.o.o., Pantovčak 50, 10000 Zagreb, Croatia, operates the new SailViewer app. This notice covers the iPhone, iPad and Android app (package com.sailviewer.mobile), including the iPad app used on an Apple-silicon Mac. The previous Android SailViewer app is separate. Contact us at info@ib-sailing.com about this app or a privacy request.
Your sailing logs
Files you import, their GPS tracks and the library built from them are processed and stored on your device. Normal startup, access checks and optional diagnostics do not automatically upload those files. You choose when to export or share an analysis image or an original file.
Access checks
Foldable phones, tablets and computers use an installation identifier, device classification, app version, activation state and an installation credential to obtain and refresh access. The service links records for the same installation, so these identifiers are not anonymous. They are used to operate and protect access, not for advertising or cross-app tracking. Ordinary non-folding phones do not need a weekly license check for local features.
Website analytics
The new IB Sailing website pages use our existing Google Analytics property to measure visits and clicks on download and app-store links. This website measurement is separate from optional in-app diagnostics and respects your browser’s Do Not Track setting. We record link clicks, not completed downloads or app installations.
Optional diagnostics
Automatic error reports and usage summaries are separate choices, both off by default. If enabled, bounded event codes, operation and format categories, size or duration buckets, app version and error categories may be sent. The automatic payload does not include log contents, file names or paths, GPS coordinates, license codes or credentials. You can turn each choice off to stop future optional sending.
Support reports
Nothing is sent merely by opening Report a problem. When you submit, the description and optional contact details you enter, your support reference and the technical trace shown in the app are sent to IB Sailing’s support service. Original logs are not attached automatically. This release has no screenshot or video attachment control; sharing an original through the system share sheet is a separate action you choose.
Maps and service providers
If you enable a map background, the app requests tiles directly from the selected map provider: OpenStreetMap, Esri or CARTO. The request reveals the geographic area being viewed and ordinary network information such as your IP address to that provider. The map area comes from the imported track; the native app does not request device-location permission. IB Sailing uses Cloudflare infrastructure for access, diagnostics and support services. App distribution and device file/share controls are provided by Apple or Google under their own terms.
Retention and deletion
Support issues and optional diagnostic records become eligible for cleanup after 30 days, but cleanup is request-triggered rather than guaranteed on day 30. Installation, activation and access records do not currently have an automatic expiry and are kept for the service lifecycle or until an appropriate deletion request is handled. Your local library remains on your device until you remove its records or the app’s storage.
Why we process information
We use access and installation records to provide and protect app access; our legal basis is the service contract or our legitimate interest in preventing misuse, as applicable. We process a support request to answer it, and optional automatic diagnostics only after you turn on the relevant choice in the app. If we must keep a record to meet a legal obligation, that obligation is the basis for that retention.
Your choices and requests
You can leave optional diagnostics off, withdraw either choice later, avoid map backgrounds, and choose whether to submit a support report or share a file. You may ask for access to, correction, deletion, restriction or portability of personal data, or object to processing where the law applies. Email info@ib-sailing.com to make a request. An in-app support reference or issue ID helps us locate records; please do not send credentials, license codes or sailing files in an initial request. You may also lodge a complaint with the Croatian Personal Data Protection Agency or your local supervisory authority.