# HNAV — Houston Tug Nav Assessment

> Houston Tug Nav Assessment (iPhone/iPad app by Pearson Smith.)

- Source: https://appshunter.io/ios/app/hnav/id1503064750 (this page in markdown: same URL + `.md`)
- Developer: [Pearson Smith](https://appshunter.io/developer/1268483172)
- Category: Utilities, Weather
- Price: $19.99
- Age rating: 4+
- Requires: iOS 13.1 · 1 MB
- Languages: English
- Released: 2020-08-11
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/hnav/id1503064750/reviews.md

## What is HNAV?

HNAV is a tool for Houston harbor tug operators to gather all the information they need to fill out their Navigation Assessment paperwork before a job. This cuts down the time on opening several apps to gather the necessary information.

Usage is simple. Select the station you are near and tap on the calculate button. The data needed to fill out the paperwork will populate. The tides and currents have graphs as a visual aid.


## Version history (last 1 release)

### 1.0.2 — 2020-09-28

Bug Fix that caused crashing in iOS14.
Note: If there's no Slack in the data from NOAA, the app will pull times between -0.01 and 0.01 knots. The time may not be accurate, but close.

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## More apps by Pearson Smith

- [iBTHO](https://appshunter.io/ios/app/ibtho/id1268483173)
- [Tanker - The Sounding App](https://appshunter.io/ios/app/tanker-the-sounding-app/id1442173028)
- [Maritime Stickers](https://appshunter.io/ios/app/maritime-stickers/id1446951221)
- [Bike Rack](https://appshunter.io/ios/app/bike-rack/id1521264145)
- [License to Sail](https://appshunter.io/ios/app/license-to-sail/id1605521074)

All apps by Pearson Smith: https://appshunter.io/developer/1268483172

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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 2026-05-19.*