Tide Now HI is a tide calculator for the state of Hawaiʻi.It displays a tide graph, daily tide table, present tide status, and daylight/sun/moon timing. It supports 32 locations in organized into 5 regions.

Off Line Operation- app does not use the internet, it works by calculation.

Predictions are quick the app is simple to use. Use swipe gestures for the next and prior day tides. There are no ads and app cannot access phone features.

User Options

Controls for the user are provided by three action bar icons and five items in the settings menu. The action bar controls are Set Location, Set Date, and Refresh. The settings controls are Add Station to Favorites, GMap Station (internet), Change Color Scheme, Sun and Moon Info, About Gestures, and Contact Info.

Phone or Tablet

The app works on any Android device at level 3.0.3 or above, most phones and tablets are supported. Depending on the nature of your android device, the landscape or portrait mode display may present a more useful size.

Accurate Predictions

This app was written using well-known tidal prediction algorithms and publicly available location data. It can be expected to match very closely to federally-published tide tables. It uses the "Harmonic Prediction of Tides" methodology in long use for tide elevation predictions.

Designed for On The Spot Use

The tidal status presentation gives an immediate snapshot of the tide situation, more useful than just a standard list of highs and lows. The display can be refreshed at any time to update this status. This app is designed for use while actively out and about along the waterfront. It uses large text and the bright text choice is easily read on the bright sun.

200 Year Calendar

In addition to today's tides, a date picker is available to choose any date from 1901 to 2100. The app does not have to be refreshed on the new year.

Next Day, Prior Day Swipes

Gestures are supported to go to "next day" and "past day" to step day by day through a range of dates. These operate like turning the page of a book. You can quickly swipe through a range of dates to look for good clam digging days.

Favorites

The selected station can be added to a set of eight favorites. These can be accessed by a down-swipe.

Adjustable Colors

There are five color schemes, good for situations ranging from bright sun to night use. Try each one out depending in which conditions you use the app you can find one that works best.

The tide stations are organized by regions which are basically the five islands.

Region Kauai - Niʻihiu

Hanalei Bay
Hanamaulu Bay
Nawiliwili
Port Allen
Waimea Bay
Niʻihau Island

Region Oʻahu

Honolulu
Ford Island
Bishop Point
Waiʻanae
Haleʻiwa
Laie Bay
Waikane
Mokuoloe
Waimanalo
Hanauma Bay

Region Molokaʻi - Lanai

Kaunakakai Harbor
Kolo Harbor
Pukoo Harbor
Kamalo Harbor
Lanai Island
Region Maui - Kahoʻolawe
Kahului
Hana
Makena
Kihea Maalaea Bay
Lahaina
Kuheia Bay
Smuggler Cove

Region Hawaiʻi

Hilo
Honuʻapo
Napoopoo
Kailua - Kona
Kawaihae
Mahukona