Cut route planning time by 45% with offline-first voyage tools
Sailor Planner is a cross-platform voyage planning system built for crews operating in unstable offshore environments.
It consolidates routing logic, vessel data, and operational workflows into a single offline-capable interface that keeps crews aligned when connectivity drops at sea.


Executive Summary
Sailor Planner is a cross-platform voyage planning and tracking system built for maritime professionals operating in offshore and low-connectivity environments.
The platform combines offline-first architecture, role-adaptive workflows, and safety-focused UX to ensure accurate routing, operational visibility, and coordinated crew execution at sea.
The Problem
Unstable connectivity
Crews frequently operate without internet access, making cloud-dependent tools unreliable.
High cost of errors
Routing mistakes directly impact crew safety, fuel usage, and operational outcomes.
Multi-role complexity
Captains, crew, and coordinators require distinct workflows and permission layers.
Long-duration voyages
Multi-day and multi-week journeys exceed the limits of traditional calendar tools.

The turning point
The Insight
The challenge was reliability under constraint, not planning itself. We needed a system that works offline by default, adapts to user roles automatically, and scales from individual sailors to structured maritime teams without increasing cognitive load.
The Breakthrough Solution
Based on research and field analysis, we focused on four structural decisions:
Offline-first architecture
Full functionality without internet access, with background sync when available.
Role-adaptive workflows
Interfaces dynamically adjust based on onboard responsibilities.
Voyage-centric structure
Planning is organized around journeys, not isolated tasks.
Safety-oriented UX
Critical data is prioritized to reduce errors under physical and cognitive stress.

How It Was Built
Offline-first data storage
All critical voyage data is stored locally with conflict-safe synchronization.
Route visualization engine
Clear route mapping with structured waypoints and timeline logic.
Automatic activity logging
Operational events are automatically recorded with minimal manual input.
Business Results
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