
CYKI — Sneaker Portfolio
Your collection, valued daily
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About
Know what your collection is actually worth.
CYKI is the sneaker portfolio tracker for collectors who want more than a shoebox full of receipts. Catalog every pair you own and watch its live resale value update daily. No spreadsheets, no guesswork.
LIVE MARKET VALUES & P&L
Every pair is priced against real resale market data, updated daily. See your total collection value, cost basis, and profit or loss at a glance — per pair or across your whole rack.
THE CYKI 100
An independent daily index for the sneaker resale market — not run by a marketplace. Track how the market is actually moving, then see how your own collection stacks up against it. Beating the index is the flex worth screenshotting.
PRICE ALERTS
Set a target price on any pair and track it against the live market, so you know the moment your grail finally moves. No more checking five different apps.
GRAILS & WATCHLIST
Track the pairs you do not own yet. Keep a running watchlist of grails, and when you finally cop one, bring it straight into your collection.
BEAT THE MARKET
Pick a basket of five sneakers and compete against the CYKI 100 all season. Every two weeks a themed event rotates the challenge — Jordan only, under $200, Adidas, New Balance, and more — so there is always a new game running alongside the monthly season.
Built by collectors, for collectors. Not investment advice — just an honest read on what's in your rack.
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What's New in CYKI
1.1.1
October 30, 2026
Notifications and price alerts now work on iPhone. Allow notifications when the app asks. Smaller fixes: cleaner size labels, pair details, and news list.
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