PRODUCT · REVISIONS
What did Rev B actually change?
Addendum lands the night before submission. Ducta overlays the two revisions pixel-by-pixel — added in blue, removed in red — and an AI pass describes the scope changes with evidence. It flags; it never silently re-prices.
PIXEL OVERLAYQuota-free visual diff with change percentage and hotspot regions, per sheet.
SCOPE COMPAREAdded, removed, modified, relocated — and 'uncertain', because a missed change is the worst outcome. Every change carries its evidence and confidence.
STALE TRACKINGEstimates priced against a superseded revision are flagged across the tender workspace until re-priced.
HUMAN DECIDESCompare produces a review list, not a new price. You confirm each change before anything is re-measured.
See it on your own drawings — a 20-minute walkthrough, then a 14-day trial with no card.