Stackly: Collection Tracker

Luno Works

In-app purchases

About this app

Stop buying the same thing twice. Stackly is a simple, focused collection tracker built for one job: preventing duplicate purchases.

Whether it's merch from your favorite artist, books, collectibles, or everyday household items shared with family — it's easy to forget what you already have. Stackly makes it fast to check before you buy.

■ Scan a barcode, know instantly
Point your camera at a barcode and instantly see if that item is already in your group's collection. For books (ISBN), Stackly automatically fetches the title and cover image, so adding one takes seconds.

■ Smart matching, even without a barcode
No barcode? No problem. Stackly's name-matching engine catches near-duplicates even when the wording differs slightly, so similar items still get flagged before you double up.

■ Share with your group
Create a group and invite family, fellow collectors, or your favorite-artist community with a simple invite code. Everyone sees what's already owned in real time — perfect for avoiding duplicate gifts. Belong to multiple groups and switch between them with a single tap.

■ Add items in seconds
Just a name and one photo — that's it. No storage location fields, no valuation tracking, no clutter. Registration stays quick so you'll actually keep using it.

■ Wishlist built in
Track things you want, not just things you own, so your group knows what to look out for.

■ Make it yours
Choose an accent color per group or for yourself to personalize the look and feel.

■ English and Japanese supported
Switch the app's display language anytime.

The free plan supports up to 30 items total. Upgrade to Premium for unlimited items.

Collections, shared household items, or your favorite-artist merch — track it all without the duplicates. Get started with Stackly today.