Getting Started
Offline sail-performance lab for imported or entered polar targets, true/apparent wind, VMG/VMC, tack and gybe comparison, performance percentages, and race-review notes.
Support
Tackpolar Support
Help and product information for Tackpolar.
Included Features
- Editable sailboat polars
- True/apparent wind geometry
- VMG and target percentage
- Local session-photo evidence
Common Questions
Does the app need an account, subscription, or in-app purchase?
No. It is a one-time paid download with no account, advertising, analytics, subscription, or in-app purchase.
Does it work offline?
Yes. Core features and bundled material work without a developer-operated service.
Where is my information stored?
Your editable inputs, imported rows, saved work records, comparison settings, and export history, plus images you select and optional site coordinates you deliberately attach remain in local app storage.
What are the limits?
Tackpolar is a performance-planning aid, not a navigation, weather, routing, or collision-avoidance instrument. Use official charts, forecasts, rules, and approved marine equipment underway.
Contact
Email support@shadowfetch.com with the app name, device model, iOS version, and a concise description of the issue.