NFC Collection Tracker

Track your stack.

Every Coinfinity storage unit gets a tap-to-scan NFC ID, so you always know exactly what's in your collection — and where it lives.

Free · No account required · Works offline

Stacker tapped

Stack value

In your pocket

How it works

Tap. Track. Always know.

Tag every unit

Each Coinfinity stacker ships with a built-in NFC chip — a permanent digital ID for that storage unit.

Tap to scan

Hold your phone to the stacker and Coinfinity instantly pulls up everything stored inside.

Track it all

Add, move and value items across stacks. Your whole collection, always current, always in your pocket.

The Coinfinity Ecosystem

Hardware and software, together.

Coinfinity is more than a tracking app. It's a connected platform — purpose-built NFC storage, free mobile software, and the resources to set up and grow your collection.

Hardware

NFC stackers

Purpose-built storage units with built-in NFC chips — a permanent, scannable home for every part of your stack.

Software

Tracker app

Free on iPhone and Android. Scan stackers, organize items, and keep your collection valued — always in your pocket.

Store

Coinfinity.US

Shop stackers, accessories, and new releases. Visit the store →

Docs

Guides & specs

Setup guides, product details, and how-tos. Browse docs →

Live demo

One tap, the whole bin.

Hold your phone to a Coinfinity stacker and its full contents appear instantly — no typing, no searching, no spreadsheet.

✓Works with any Coinfinity NFC stacker

✓Scans on iPhone and Android

✓Updates your stack in real time

Features

Built for serious stackers

Your whole stack at a glance

Every stack, storage unit and item in one place, with live totals so you always know what you're holding.

Tap to scan, instantly

No typing, no searching. Hold your phone to a stacker and its full contents appear in a second.

Stacks, units and items

Structure your collection exactly how you store it — group, drill in, and track each individual item.

Know what it's worth

Keep value and detail on every item so your total is always current — no spreadsheet, no guesswork.

Your collection stays yours

Coinfinity keeps your data on your device. No account required, and nothing about your stack is uploaded to a server you don't control.

FAQ

Common questions

What is an NFC stacker?

It's a Coinfinity storage unit with a small NFC chip built in. The chip acts as a permanent digital ID, so tapping it with your phone instantly opens that unit's contents in the app.

Do I need special hardware?

To tap-to-scan you use Coinfinity NFC stackers, available at Coinfinity.US. You can still add stacks, units and items manually if you want to start tracking before your stackers arrive.

Does it work on iPhone?

Yes. Coinfinity supports NFC scanning on both iPhone and Android. The iOS app is live and the Android app is on Google Play.

Is my collection data private?

Yes. Coinfinity is built device-first — no account is required and your inventory is kept on your device rather than uploaded to a server you don't control.

How much does the app cost?

The Coinfinity Tracker app is free to download on both the App Store and Google Play.

Start tracking your stack.

Download Coinfinity free on iPhone and Android. Pair it with your NFC stackers and your collection comes to life.