# TackMath — An upwind sailing calculator

> An upwind sailing calculator (iPhone/iPad app by RICHARD CAMPBELL CASE.)

- Source: https://appshunter.io/ios/app/tackmath/id6782653497 (this page in markdown: same URL + `.md`)
- Developer: [RICHARD CAMPBELL CASE](https://appshunter.io/developer/6782137210)
- Category: Sports, Navigation
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-06-24
- Data updated: 2026-09-29

## What is TackMath?

Tack Math is an upwind sailing computer. Lay it flat on the deck of your sailboat, pointing toward the bow, and set the angle to your boat's highest angle of attack upwind (as close hauled as you can get). The app will sense your tack based on the heel of the boat, and plot your heading post-tack. As you come about, you can watch the binnacle (or working compass on the app), and align to the green bearing shown before you tack. (It also lets you take a bearing before you tack of your new heading, by following the green dashed line of sight on the screen. The app also returns heel angle and speed in knots. Offers night mode in red as well.

## Is TackMath safe?

Not enough ratings yet to assess TackMath.

## Is TackMath legit?

TackMath has limited verification signals. The AppsHunter Legitimacy Score for TackMath is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-06-24

No release notes.

## Apps similar to TackMath

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [TackSense](https://appshunter.io/ios/app/tacksense/id6766333232) | — | Free | Sports |
| [AnemoTracker](https://appshunter.io/ios/app/anemotracker/id928168290) | 1.6 (14) | Free | Sports |
| [Cricket Guru](https://appshunter.io/ios/app/cricket-guru/id1247859253) | 4.7 (1,230) | Free | Sports |

## More apps by RICHARD CAMPBELL CASE

- [VocalPracticer](https://appshunter.io/ios/app/vocalpracticer/id6782137208)

All apps by RICHARD CAMPBELL CASE: https://appshunter.io/developer/6782137210

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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 2026-09-29.*