BOAT 4DAT

4DAT LLC

In-app purchases

About this app

BOAT 4DAT is the maintenance log your vessel deserves. Track every boat you maintain, keep the work list honest, and know what the fleet actually costs — fully offline, on your phone.

YOUR FLEET
Log each vessel with its specs: type, year, builder and model, engine, and hours. The free plan covers one boat; BOAT 4DAT Pro — an optional yearly subscription for owners, captains, and charter operators — unlocks an unlimited fleet.

MAINTENANCE, GROUPED BY URGENCY
Add tasks with priority and due dates and they sort themselves: Overdue, Due within 14 days, Scheduled later, No due date. Complete a task and it moves into the service history with its real cost.

REAL COSTS
Every task carries parts, labor, and yard costs. The Costs tab rolls them up — this month, this year, all time, and per boat — plus the estimated cost of the open work queue.

RESTOCK SUPPLIES
Curated marine consumables — engine oil, filters, zinc anodes, fuel stabilizer, bilge gear. As an Amazon Associate, 4DAT earns from qualifying purchases; links only open Amazon in your browser, and nothing is ever purchased automatically.

PRIVACY FIRST
Everything stays on your device: no account, no analytics, no tracking SDKs, and the app requests zero permissions. Erase everything anytime from Settings.

What’s new

First Android release of BOAT 4DAT — vessel records with real specs,
maintenance grouped by urgency (overdue, due soon, scheduled), service history,
and cost rollups per month, year, and boat. No account, no analytics, zero
permissions: the fleet's records stay on your phone.