Simple Marine Software

Name: FamilyCalc / Vacation Planner
Author: Simple Marine Software

Maritime software built by a seafarer for seafarers.

Voyage Fuel Planner — free browser demo

Plan voyage fuel consumption with interactive route mapping and tank tracking. Built for marine engineers and ship officers. Windows, macOS, Linux.

Generate professional maritime reports with custom templates. PDF output via Typst. For ship officers and shore-side teams.

Plan your leave rotation as a seafarer. Calculate days at home, days at sea, and synchronize with family schedules.

Built by Aleksandr, a working marine engineer who codes between watches.