# Tackpolar: Sail Performance — Polars, VMG and trim targets

> Polars, VMG and trim targets (iPhone/iPad app by Robert Corbin.)

- Source: https://appshunter.io/ios/app/tackpolar-sail-performance/id6792826861 (this page in markdown: same URL + `.md`)
- Developer: [Robert Corbin](https://appshunter.io/developer/1890247992)
- Category: Sports, Utilities
- Price: $2.99
- Age rating: 4+
- Requires: iOS 17.0 · 88 MB
- Released: 2026-07-30
- Data updated: 2026-08-31
- User reviews in markdown: https://appshunter.io/ios/app/tackpolar-sail-performance/id6792826861/reviews.md

## What is Tackpolar?

Tackpolar: Sail Performance is a focused, fully on-device app. 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.

KEY FEATURES
- Editable sailboat polars
- True/apparent wind geometry
- VMG and target percentage
- Local session-photo evidence
- Editable sample data and CSV import
- Side-by-side scenario comparison
- Local PDF evidence export
- Fifty-three original offline reference plates

ONE-TIME AND PRIVATE
- One paid download; no subscription or in-app purchase
- No account, advertising, analytics, tracking, or developer-operated backend
- Core features and bundled content work offline
- Work remains on device unless you deliberately share or export it through an Apple system interface

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.


## Version history (last 1 release)

### 1.0 — 2026-07-30

No release notes.

## More apps by Robert Corbin

- [Daily Word Journey](https://appshunter.io/ios/app/daily-word-journey/id6761548266)
- [Hush Secret Text](https://appshunter.io/ios/app/hush-secret-text/id6761658175)
- [Renew Guard](https://appshunter.io/ios/app/renew-guard/id6761755447)
- [Receipt to PDF](https://appshunter.io/ios/app/receipt-to-pdf/id6761782025)
- [Route Your Pay](https://appshunter.io/ios/app/route-your-pay/id6761783719)
- [Tip Arbiter](https://appshunter.io/ios/app/tip-arbiter/id6761786879)

All apps by Robert Corbin: https://appshunter.io/developer/1890247992

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*