For iPhone and iPad · In beta

Poʻo Lawaiʻa

Hawaiian for “head fisherman”

The logbook for sportfishing and small boats, built on a Kona boat. Start a trip and it records your track, then log each fish with the tide, moon and current it was caught on, over seafloor maps that work far offshore.

Join the beta See what it does

Your log stays on your device and in your own iCloud. No accounts, ads or tracking.

A trip in progress: the track over the seafloor map off Kona, with time, speed, distance and the Log a fish button

Catches marked as fish on the seafloor map along the Kona coast

What it does

Everything a fishing day leaves behind, in one place

Made for the way charter and private boats in Hawaiʻi actually fish: from trolling the ledges, FADs and bird piles to palu ʻahi and drop fishing on the koʻa, then settling up at the dock.

Every trip, tracked

Tap Start trip as you leave the harbor. Poʻo Lawaiʻa records your track in the background, keeps going if your phone locks or the app closes, and picks up where it left off.

Distance, time and engine hours, carried from trip to trip
Holoholo or charter, and marked for tournaments
Trim the washdown and the ride home off the track

A finished trip's track over the seafloor, from the harbor out past the FADs

Every fish, with its conditions

Log a catch in a few taps, by its local name: ahi, shibi, aku, ono, mahimahi, aʻu. Each one is saved with where and when it bit, and the app fills in what the water was doing.

Tide, sun and moon, and solunar feeding periods
Surface current and water temperature from the PacIOOS ocean model
Weight, length, lure, angler, tag and release
Photos, and a fight time from hookup to gaff

A blue marlin catch on iPad, with depth, water temperature, sun, moon and solunar periods at the time it bit

Seafloor maps that work offshore

Shaded seafloor and depth contours around every Hawaiian island and the seamounts beyond, downloaded once and used with no signal. Touch and hold anywhere for the charted depth.

State FAD buoys, and your own marks for private FADs and spots
Your tracks and catches drawn over the ledges and canyons
Monterey Bay to Point Reyes for California boats

Depth contours along the Kona ledge, with FAD buoys marked

The boat's whole history

Each boat keeps its engines and their hours, fuel tanks, maintenance log, spare parts and owner's manuals together, on the phone and synced to your iPad.

Recurring jobs due by engine hours or months
Fuel fill-ups, and fuel burned on each trip from your chartplotter's readings
Manuals stored on the device, readable with no signal

Island Dawn's page: its engines and hours, fuel, maintenance log, parts list and manual library

Running the boat

The business side, too

Charters and clients

Bookings, deposits, balances and tips, crew pay and booking commissions, and the fish each client took home.

Lure library

Photograph each lure and the app cuts it out of the background. Keep its head shape, length, hooks, spread position and when it was last rigged, and record which lure each fish took.

Works with your plotter

Bring in tracks, marks and catches from Furuno TZT chartplotters and TZ iBoat, and send trips back as GPX. Importing from Garmin and Simrad plotters is coming soon.

Expenses and receipts

Scan a receipt and the app reads the vendor, date and total. Export everything to a spreadsheet at tax time.

On the water

Made by a fisherman, for fishermen

Poʻo Lawaiʻa is built and tested aboard Island Dawn, fishing out of Kona on Hawaiʻi Island.

Holding up a yellowfin tuna on the back deck

A blue marlin on the leader beside the boat

A big blue marlin hung at the scale with the crew — Big fish winner, Skins tournament 2026

Looking down on a marlin at the boat from the bridge

Fighting an ahi on the rod from the corner of the boat

Beta

Try it on your boat

Poʻo Lawaiʻa is in beta through Apple's TestFlight. If you fish Hawaiʻi or California and would like to try it, send a note with the boat you run and where you fish.

Email support@mekinesis.com