Tackpolar

Polars, VMG and trim targets

Purpose-Built

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.

Core Features

Editable sailboat polars
True/apparent wind geometry
VMG and target percentage
Local session-photo evidence

Private by Design

No account, subscription, ads, tracking, third-party analytics, or developer-operated backend. Core features work offline, and your work stays on device unless you deliberately share or export it.

Use It Responsibly

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.