Core is free. Pro is a subscription.
NullCad Core needs no account and no payment: open, draw, and save local .nullcad files. Pro unlocks a set of advanced features — listed below — and new capabilities join Pro as they mature. The core survey workflow is not, and will not be, moved behind the subscription.
Core
FreeThe full drafting and survey workflow: precision geometry, traverses and comparisons, layers, snapping, TIN surfaces, sheets and vector PDF export, DXF/Shapefile/GeoJSON/CSV interchange, and local files that are always yours. No account required.
Pro
A$29/monthEverything in Core, plus the advanced features — current and future. A$290 a year, if you prefer two months free. Currently in early access, subject to increase as new features are released.
| Feature | Core | Pro |
|---|---|---|
| Precision drafting & survey tools | Included | Included |
| TIN surfaces, sheets & vector PDF export | Included | Included |
| DXF / Shapefile / GeoJSON / CSV interchange | Included | Included |
| Local files, autosave & the operation log | Included | Included |
| WMS basemapsLive aerial imagery and mapping behind the model, from any WMS server | — | Included |
| Lua pluginsScripting and automation: menu commands, custom canvas tools, panels and event hooks | — | Included |
| CodelistsCode-to-layer mapping applied automatically, keeps your data organised | — | Included |
| Auto-stringingAutomatically string points through a customisable interface | — | Included |
| AnnotationsPoint-anchored photos, comments and markup that live with the document; viewing, editing and Fieldbook import are free for everyone | View, edit & import | Included |
| ChecklistsForm-style checklists filled per job and stored in the document, ready for audit; filling, reviewing and importing shared templates are free for everyone | Fill, review & import | Included |
| Create DiagramExaggerated, not-to-scale diagrams of model geometry on a Drafting sheet, labelled with the surveyed values; the result opens, edits and prints on any plan | — | Included |
| Live shared sessionsSeveral surveyors in one document, edits attributed on the operation log | — | In development |
| More to comeNullcad is constantly evolving with new features; let us know if you have any suggestions | — | In development |
Prices are in Australian dollars. Cancel any time from your account page — the subscription runs to the end of the paid period. Payment is handled by Stripe; card details never touch our servers. Features in development are current intent, not a promise of delivery dates.
Pro verifies your subscription online, but fieldwork doesn't wait for signal: Pro features keep working for 14 days between checks, and a lapsed or unverifiable subscription only ever degrades to Core — it never locks you out of your own files.