JumpIn Crew vs Mariner's Draft Survey

JumpIn Crew is your all-in-one platform for managing workforce competencies, learning progress, and performance development—now made mobile. Designed for seafarers, corporate teams, and HR professionals, this app brings the full power to your fingertips. Track Your Growth View your competency profile, monitor assessment results, and stay on top of your development goals—anytime, anywhere. Seamless Learning Experience Browse courses aligned with your skill gaps and personal interests. JumpIn Crew helps guide your learning journey with structured learning plans. Performance & Compliance Made Simple Keep your training and certifications updated. Receive real-time reminders for expiring certificates and pending courses. Easy Access, Anytime Access your learning history, uploaded documents, and course progress even while offline. Stay connected and in control. Built for Crew. Built for Companies. Whether you're a crew member preparing for deployment or a company managing large-scale talent development, JumpIn Crew helps streamline training, tracking, and compliance in one powerful app.

Mariner's Draft Survey is the draft survey and cargo planning app for bulk carrier officers. Built by a Chief Officer, it works from your own ship's tables and shows the working behind every figure, so you can check the calculation, not just trust it. DRAFT SURVEY • Six drafts, forward, midships and aft, port and starboard, on a ship diagram • Corrections to the perpendiculars, mean of means, trim, list and hog or sag • Hydrostatic interpolation from your vessel's own table • First and second trim corrections, and the dock water density correction • Ballast, fresh water, fuel and other deductibles from your sounding tables, with trim and list corrections • Net cargo by difference, with lightship and constant • Tap any figure for its formula and the numbers that went into it • A signed PDF report with your company's name and logo STOWAGE AND LOADING • Stowage Plan: share the cargo between the holds for the trim you want, loading or discharging, with a second cargo or on top of cargo already aboard • Sequence Plan: pours and ballast steps the terminal can work, with trim checked at every step • Manual Stowage: when the stow is already decided and you just want the sheet • Trimming Calculator and Grab Counter: the last tonnes for the final trim, counted grab by grab, with an ETA for each hold • Hatch by Hatch: a fair figure per hold when the shore figures don't add up to your survey CARGO VOYAGE PLANNER • How much she can lift, and which limit sets it • Every limit on the passage in one answer: load line zones and seasons, channel depths with your under-keel clearance, berth drafts and air draft under bridges • Load lines checked by displacement and at the mark amidships, using your certificate FWA • Fuel, water and endurance to every waypoint, with ECA and port rates • Enter the drafts and figures measured at any port, and the rest of the voyage is worked from them • A passage plan report to print or share AT THE SHIP'S SIDE • Draft Reader: read the marks off a photo when you can't read them by eye • Heel Meter: work out the seaside draft you can't read from the heel and the side you can • Ballast Watch: live pumping progress from your soundings, with finish times and alarms • Conditions: drafts in new water, and the most she may load in any zone YOUR VESSEL, YOUR DATA • Import hydrostatic and tank tables from Excel or CSV, and keep a profile for each ship • Each ship keeps her own survey and plans; history is listed by vessel • Back up everything to one file, and restore it on a new phone • No account, no sign-up, no ads and no tracking. Works fully offline, and nothing leaves your phone. A full user manual is built in, and at marinershandapp.com/draftsurvey. Planning tools are an aid to the officer's own calculation and judgement: check every figure before loading.