In one paragraph
Nu Stack is a precious-metals web app for people who buy, sell and hold gold and silver: scrap gold buyers, pawn shops, coin collectors, dealers and stackers. It calculates melt value from live spot prices, tracks purchases, coins and portfolio value, prints purchase receipts, identifies coins from photos with AI, and scores marketplace listings by melt value with a Chrome extension. It runs in any browser on phone, tablet or desktop and can be installed to the home screen as a progressive web app (PWA).
Key facts
| Website | nustack.app |
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| What it is | Precious-metals calculator, portfolio and purchase tracker, receipt generator, AI coin ID and marketplace deal scanner |
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| Platform | Web app in any modern browser (iPhone, Android, desktop); installable to the home screen as a PWA; data syncs across devices |
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| Metals | Gold and silver prices and melt values (calculator, holdings, coins) |
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| Price | Free plan; paid plans $1.99 to $39 a month; new accounts start with a 14-day Pro trial |
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| Founder | Dan Skemp |
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| Contact | nustackapp@gmail.com · Facebook · Instagram |
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What Nu Stack does
- Melt and scrap calculator: gold 8K to 24K and silver grades, XRF purity override, buy rate, refinery payout and a deal gauge, at live spot. A free version works without an account.
- Holdings and profit: every purchase with cost basis (fees, shipping, insurance), status, profit by source and metal, Excel and CSV export.
- Coin Portfolio and coin database: 1,693 coins and bullion products with weight and purity, valued at live spot. See coin melt values.
- Receipts: PDF purchase receipts with signature capture and photos; your business name and logo from Stacker up.
- Coin ID: identify a coin from a photo and see melt and estimated value ranges (beta).
- Price alerts: email alerts on gold and silver price targets.
- Treasure Hunter Chrome extension (Pro): scores Facebook Marketplace, Facebook Groups, Craigslist, eBay and Whatnot listings by melt value as you browse.
- Business tools (Business plan): seller ID records, hold periods, QuickBooks export, compliance and period reports.
Plans and prices
| Plan | Price | What it adds |
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| Free | $0 | Live gold and silver prices, the melt / scrap calculator with Quick Deal, coin database lookup, unit converters, Saved Searches and Find Shops links. Saving starts with Basic. |
| Basic | $1.99/month | Save up to 50 holdings and coins, portfolio value, 1 price alert, purchase receipts with signature, CSV export, Coin Portfolio, 3 AI Coin ID scans a month. |
| Stacker | $4.99/month | Unlimited items, bulk import, cost basis and tax export, receipts with your business name and logo, up to 10 price alerts, performance tracking, Market Updates and Coin Strategy estimates, 25 Coin ID scans a month. |
| Pro | $9.99/month | Everything in Stacker plus the Treasure Hunter Chrome extension (scores Facebook Marketplace, Craigslist, eBay and Whatnot listings by melt value), Prospect tools, the weight assistant, unlimited alerts, 100 Coin ID scans a month. |
| Business | $39/month | Everything in Pro plus business tools for pawn shops, scrap buyers and dealers: seller ID records and hold periods, QuickBooks export, compliance and period reports. |
Founding Members (the first 20 paying Pro subscribers) get the Business tools at the Pro price. Current details are on the pricing section of the home page.
Who it's for
What Nu Stack is not
- Not a dealer: it doesn't buy, sell or store metal, and it doesn't take a cut of your deals.
- Not investment advice: market screens describe the data; they don't tell you when to buy or sell.
- Not an App Store or Google Play download today: it installs from the browser.
How it compares
Frequently asked questions
What is Nu Stack?
Nu Stack is a precious-metals web app for people who buy, sell and hold gold and silver: scrap gold buyers, pawn shops, coin collectors, dealers and stackers. It calculates melt value from live spot prices, tracks purchases, coins and portfolio value, prints purchase receipts, identifies coins from photos with AI, and scores marketplace listings by melt value with a Chrome extension. It runs in any browser on phone, tablet or desktop and can be installed to the home screen as a progressive web app (PWA).
Is Nu Stack free?
Yes. The Free plan includes live gold and silver prices, the melt and scrap calculator, coin database lookup and unit converters. Saving holdings, coins and receipts starts with Basic at $1.99 a month. New accounts start with a 14-day Pro trial.
Is there a Nu Stack app for iPhone or Android?
Nu Stack is a web app. It works in Safari, Chrome and other browsers on iPhone, Android and desktop, and can be added to the home screen so it opens like an app. Your data syncs across devices through your account.
Who makes Nu Stack?
Nu Stack is built by Dan Skemp, its founder, and operated as Nu Stack (nustack.app).
