Draught Survey
Displacement and cargo quantity from draught readings, with corrections and final report.
GL Marine Apps · Software
Apps for marine surveyors and deck officers.
The tools we use every day in our own surveys, available by subscription. They open in the browser on PC, tablet and smartphone, and the calculators also work without internet.
The apps
What's in GL Marine Apps
The surveyor apps produce PDF reports ready to attach and save your data in your account, visible only to colleagues in your company. The deck officer calculators store no data online.
For surveyors
Bunker Survey
Quantities delivered during bunkering, with tank soundings and ASTM calculation.
On/Off-Hire Bunker Survey
Fuel remaining on board at delivery and redelivery of the vessel, with certificate.
Coil Tally
Steel coil tally at loading and discharge, with damage log and photos.
Yacht Survey
Condition survey checklist for yachts, with photo report and valuation.
Blade Damage Report
Wind turbine blade damages marked on a plan view, with photos and PDF report.
For deck officers
Compass Error Book
Gyro compass error by azimuth and amplitude of the sun, with observation log.
Pressure Converter
Conversions between bar, psi, kPa, kg/cm² and other pressure units.
Volume & Weight
Volume, density and weight conversions for liquid cargo.
Plans and pricing
Choose your plan
Every plan starts with a 14-day free trial, no credit card needed. Then choose monthly or yearly billing (yearly gives you 2 months free) and pay online by card through Stripe. Prices for the surveyor and company plans exclude VAT.
Deck Officer
For the deck officer on board.
- Compass Error Book
- Pressure Converter
- Volume & Weight
- 1 user
€4.99 / monthor €49 / year · VAT included
Surveyor Solo
For the surveyor working alone.
- All surveyor apps
- PDF reports
- 1 user
€29 / month + VATor €290 / year + VAT
Surveyor Team
For survey firms with several colleagues.
- All surveyor apps
- Reports shared with the team
- Up to 5 users from the same company
€79 / month + VATor €790 / year + VAT
Company
For survey companies and shipowners.
- All apps, for surveyors and deck officers
- Up to 10 users, more on request
from €149 / month + VATor from €1,490 / year + VAT
- Payment: online by card through Stripe. You receive an invoice for every payment.
- Renewal: the subscription renews automatically at the end of each month or year.
- Cancellation: at any time from the customer portal; access stays active until the end of the period already paid.
- Refund: full refund if you ask within 14 days of your first payment.
Full conditions are in our Terms and Conditions of Sale.
Support
Questions about the apps?
Write to us for a quotation, to start your free trial or for help with your account.