Bunker Manager is an offline ship fuel management app for marine engineers and seafarers. Manage bunker deliveries, fuel tanks, ROB, onboard consumption, sounding tables and operational records in one place.

Designed for real engine-room work, Bunker Manager helps you organize vessel fuel data and maintain clear records without relying on an internet connection.

TANK MANAGEMENT

• Manage multiple vessels and their tanks
• Track tank capacity, ROB and working limits
• Organize different fuel and product types
• Enter quantities manually or use sounding tables
• Record temperature, density, viscosity and sulfur content
• Arrange tanks in your preferred order

BUNKER OPERATIONS

• Record bunker deliveries for individual tanks
• Manage deliveries involving multiple tanks
• Calculate fuel volume and mass using density
• Record soundings before and after bunkering
• Save dates, times, notes and operational remarks
• Review, edit and manage bunker history

FUEL CONSUMPTION

• Record onboard fuel and product consumption
• Track consumers and consumption details
• Use the units required for your operation
• Review previous consumption records
• Reuse previous entries when creating new records

TANK CALIBRATION AND SOUNDING TABLES

• Create and maintain tank calibration points
• Calculate tank volumes using sounding measurements
• Keep calibration data linked to the correct tank
• Organize tank measurement data for daily operations

HISTORY AND RECORDS

• Review bunker deliveries and operations
• Track recorded fuel and product consumption
• Edit or delete records when necessary
• Organize operational history by vessel

BACKUP AND RESTORE

Protect your operational records with manual backup and restore and automatic local backups.

Save backup files and restore your data without depending on a cloud service.

OFFLINE SHIP FUEL MANAGEMENT

Bunker Manager is designed to work without an internet connection.

Your vessel, tank, bunker, consumption and calibration data is stored locally on your device, making the app practical for shipboard use when internet access is unavailable.

FREE USE AND PREMIUM

Bunker Manager includes practical limits for vessels, tank groups and bunker operations.

A one-time Premium purchase unlocks higher limits. There are no recurring subscriptions or in-app advertising.

BUILT FOR MARINE ENGINEERS

From bunker deliveries and fuel consumption to tank soundings, density calculations and ROB tracking, Bunker Manager brings essential ship fuel records together in one practical tool.

Designed for marine engineers, ship mechanics and engine-room personnel who need organized operational records during everyday shipboard work.

Bunker Manager — practical ship fuel and tank management, available offline.