Live
ConfirmPO
Supplier PO confirmation
Upload a purchase order, we email your supplier a no-login confirmation link. Any changed quantity, price, or date gets flagged automatically — no more diffing spreadsheets by hand.
Open ConfirmPO →zbackroom
A small workshop of useful apps — and a shop of things worth having.
Apps
Small, focused tools. One account works across all of them.
Live
FamilyCall
Video calls with live captions
Video calls your hard-of-hearing parents can follow: everything either person says appears as large text on both screens, in Mandarin and English. Unlimited calls, free to start.
Open FamilyCall →Live
HumanScore
AI writing detection
Paste a document and see how much of it reads as written by a person and how much by AI — every passage highlighted, with the reason it was called that way. An estimate, not proof. Free to try without an account.
Open HumanScore →More on the way
Another small app will land here soon.
Shop
A few gadgets and tools worth keeping around.
Nothing on the shelf yet — check back soon.