Built For: Coin Collectors

The Coin Collector App That Knows the Difference Between Bullion and Numismatic

1,600+ coins in the database. Melt value at live spot plus an estimated collector premium. Photo-based AI coin ID. Your portfolio, finally treated like a portfolio.

Always free to use. Every new account unlocks all Pro features for 2 weeks — no credit card required.

Why It Works ↓

Quick answer: Nu Stack identifies coins from a photo, shows melt value and an estimated collector premium, and tracks your collection with proper cost-basis math. It's a numismatic portfolio tracker that handles bullion, key dates, and graded slabs in one place.

Why Coin Collectors Choose Nu Stack

Snap a photo, get the coin

Camera capture → cloud AI identification → year, denomination, composition, melt value and an estimated value range.

Melt vs. collector premium, side by side

See what the metal alone is worth at live spot next to an estimated collector premium, so you know roughly where a coin stands before you get a quote.

Typical premiums by coin type

Coin Strategy shows melt value at live spot with typical premium and dealer-spread estimates for each coin type. They're typical ranges, not live dealer quotes.

Portfolio that respects the details

Each coin gets its own entry — year, mint mark, grade, what you paid, current value and gain. Search and filter by year, grade, metal or storage location.

Mobile-first, works at coin shows

Built to work fast on a phone in a noisy convention hall. No spreadsheet, no typing while a dealer waits.

FEATURES THAT MATTER FOR THIS WORKFLOW

Coin IDCoin PortfolioCoin StrategyHoldingsAlertsCalculator

What Real Nu Stack Users Are Saying

Direct feedback from buyers, stackers, and collectors using the app.

“

Nu Stack makes it much easier to know what I'm looking at before I buy. Being able to check melt value quickly gives me a lot more confidence when comparing gold and silver deals.

Melt value confidence★★★★★

“

Nu Stack feels like a practical tool for anyone buying physical gold or silver. It gives me better information before I spend money, and that is exactly what I need.

Overall value★★★★★

“

This saves me time. Instead of bouncing between calculators, spot price sites, and notes, I can do most of what I need in one app.

Time savings★★★★★

Frequently Asked Questions

How accurate is the AI coin identification?

Nu Stack's AI handles common US, Canadian, UK, EU, and world bullion plus the major numismatic series. It returns a confidence score and lets you override before saving. It's a starting point, not a substitute for a slab and a loupe.

Does Nu Stack track graded coins?

Yes. Each coin entry has an optional grade field, notes and photo upload, and shows what you paid next to melt value.

Can I see how my collection has performed over time?

Yes. The Profit Dashboard shows realized P&L by metal, source, and time period. The Portfolio view shows unrealized gains against current spot.

Are PCGS and NGC populations integrated?

Nu Stack uses an internal numismatic database for identification and valuation. Population reports from third-party graders are not currently integrated.

Try Nu Stack Free for 2 Weeks

No credit card. Always free to use. Every Pro feature unlocked for the first 14 days.

Create your free account

2 weeks of Pro free — no credit card required

Also Built For

Retirees & Long-Term Holders Scrap Gold & Jewelry Buyers Pawn Shop Operators Antique Dealers