About this app
Permanent Jewelry Quick COGS is the fast, fully offline cost and margin calculator built for permanent-jewelry artists who buy chain by the foot or meter and weld bracelets, anklets, and necklaces at pop-ups. Open it beside the welder and answer, in seconds: what did this piece cost, what should I charge, and what remains after the costs I chose to include? THE CALCULATOR — UNLIMITED, FOREVER • Convert chain cost per foot, per meter, or per spool into cost per inch and per centimeter. • Bracelet, anklet, necklace, and custom lengths, in inches or centimeters. • Wastage allowance and the exact chain length consumed. • Charm, connector, clasp, and other component lines. • Optional booth allocation, card fee, and re-weld allowance. • Check a charge you have in mind, or solve the minimum charge for a target margin. • Material COGS, total economic cost, break-even, estimated profit, and margin — with every substituted formula shown. • One calculation is auto-saved and restored. No account, no counter, no network. INVENTORY, QUOTES & POP-UP EVENTS • Chain and component inventory tracked to the inch with weighted-average cost and low-stock alerts. • Saved quotes with immutable snapshots you can revise anytime. • Pop-up events: record each sale against your real stock, then see revenue, costs, and event profit. • CSV export for events, sales, inventory, transactions, and quotes. PRIVATE BY DESIGN No account, no ads, no analytics, no tracking, and no developer-operated network. Your business data stays in a protected file on your device. This app is a planning and recordkeeping aid, not accounting, tax, or business advice, and it never recommends a market price. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 12, 2026 · 12:23 AM Free