What you own. What it's worth. What's next.
Stud Stacks is the quiet, premium home for your LEGO® collection. Log every set and minifig, see its market value to the penny, and get a nudge the moment it announces retirement.
Everything a collector needs. Nothing they don't.
Your shelf, catalogued
Scan a barcode, snap a photo, or search by name. Stud Stacks pulls the catalogue, price history, and story behind each set.
Value to the penny
Real BrickLink sold-data and eBay listings — not asking prices — converted into your currency at the FX rate on the date you bought.
Retirement on your radar
Historically the biggest catalyst in a set's market life. Stud Stacks pings you the moment retirement is announced.
Export the audit trail
Full CSV export for insurance, accountant, or your own records. Every line, every date, every price.
Theme drilldown
See which themes are pulling their weight — Star Wars vs. Modular vs. Icons, sliced by cost basis, current value, and retirement lift.
Retirement watchlist
Pin sets you don't own but want to buy before they retire. Stud Stacks alerts you at the moment the market moves.
Free to start. £3.33/mo when you're ready.
Free
- Up to 25 items on your shelf
- Barcode scan + catalogue search
- Manual price entry
- Personal storage + condition tracking
Stud Stacks Pro
- Everything in Free
- Unlimited items and minifigs
- Unlimited photo scans
- Retirement watchlist + push alerts
- Theme drilldown analytics
- CSV export (insurance-grade)
- Custom price alerts
Answers before you tap install.
Is Stud Stacks affiliated with The LEGO Group?
No. Stud Stacks is an independent product for adult LEGO® collectors. Not affiliated with, endorsed, or sponsored by The LEGO Group.
Where does the price data come from?
Real sold prices from BrickLink and active listings from eBay — never asking prices from marketplaces. Converted into your local currency at the FX rate on the date you bought, so your P&L reflects real currency exposure.
Do I need a Pro subscription to use it?
No. The free tier tracks up to 25 items with full valuation. Pro unlocks unlimited items, retirement alerts, CSV export, and theme analytics.
What if I sell an item?
Mark it as sold with the sale price and date. Stud Stacks keeps the sold-item in your history for realised-gain tracking without cluttering your active shelf.
Does Stud Stacks work offline?
Yes — your shelf, purchase history, and last known values are cached locally. Price refresh needs a connection.
Which platforms are supported?
iOS today via the App Store. Android is next on the roadmap.