The Field App for Metal Detectorists Who Want to Know What They Just Dug
AI coin ID, live melt value, GPS-tagged finds, photo logs — Nu Stack turns every recovery into a real entry in a real portfolio.
Always free to use. Every new account unlocks all Pro features for 2 weeks — no credit card required.
Why Metal Detectorists & Treasure Hunters Choose Nu Stack
Identify a dirty find on the spot
Brush it off, take a photo, get a probable mint, year, and composition before you put the next plug back in the ground.
Melt math for jewelry recoveries
Pulled an old gold ring? Weight + karat + spot = your real take. Useful for deciding whether to sell or keep the find.
Trip logging with GPS
Log every session with location, hours hunted, and finds list. See over time which permission yields the most actual gold per outing.
Grid mapping for systematic sites
Drop pins for every find. Build a heat map. Treat productive sites like a fishing spot worth gridding properly.
Keepers in your portfolio
Add the finds you keep to Coin Portfolio or Holdings and see what they're worth at live spot.
Frequently Asked Questions
Does Nu Stack work without cell signal in the field?
Trip logging uses your phone's GPS, and the calculator works from the last spot price it loaded. AI coin ID needs a connection, so identify finds once you're back in signal.
Can I track which permissions are most productive?
Yes. Each Prospect trip log keeps its GPS location, time, and finds, so you can compare sites trip by trip.
Is the Prospect feature also useful for gold prospecting?
Yes — it includes a magnetometer compass, GPS trip log, and grid mapping for placer prospecting and metal detecting alike.
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