Contact us
Email hello@pvc4dat.com with your question, your device and iOS version, and a screenshot if it helps. We typically reply within a couple of business days.
Common questions
How do inventory gaps work?
Build a plan (the pipe and fittings a project needs), then track what you already have in Inventory. PVC 4DAT subtracts what you have from what the project requires and shows the shopping list — the parts you still need to buy.
What does PVC 4DAT Pro include?
Pro ($8.99/year) unlocks unlimited projects and inventory, custom plan templates, PDF export of your shopping list, photo inventory scan, and one-tap Amazon shopping links. The free tier includes 2 projects, 25 inventory items, and the preset plans.
How do I manage or cancel my subscription?
Open the Settings app on your device, tap your name, then Subscriptions, and select PVC 4DAT Pro. You can cancel anytime; access continues until the end of the paid period. See our Terms.
How do I restore a purchase?
In PVC 4DAT, open Settings → PVC 4DAT Pro → Restore Purchases while signed in with the Apple Account used for the purchase.
What are the "Buy on Amazon" links?
Pro shows a tagged Amazon search for each missing part. As an Amazon Associate, 4DAT earns from qualifying purchases — see the Affiliate Disclosure. Always confirm size, schedule, and fitment on the listing before ordering.
Privacy & data
Your projects and inventory are stored on your device. See the Privacy Policy for details.