Getting Started
An offline small-vessel hydrostatics and loading workbench for displacement, trim, heel, free-surface effects, righting-arm curves, and load cases.
Support
Heeltrace Support
Help and product information for Heeltrace.
Included Features
- Editable vessel hydrostatic stations
- Load-case and tank ledger
- Corrected GM and heel estimate
- Trim and draft-change screening
- Righting-arm scenario plot
Common Questions
Does the app need an account, subscription, or in-app purchase?
No. It is a one-time paid download with no account, advertising, analytics, subscription, or in-app purchase.
Does it work offline?
Yes. Core features and bundled material work without a developer-operated service.
Where is my information stored?
Your editable workspaces, parameter values, imported records, comparison settings, notes, and export history remain in local app storage.
What are the limits?
Educational and preliminary planning aid. Use approved stability information and a qualified naval architect for operation or certification.
Contact
Email support@shadowfetch.com with the app name, device model, iOS version, and a concise description of the issue.