Undercity

About this app

Undercity is the premium peer-to-peer marketplace and auction house built exclusively for serious collectors. Whether you're hunting down a graded TCG items, a key issue comic, a rare figure, or a vintage artifact, Undercity is where collectors come to buy, sell, trade, and compete at auction. MARKETPLACE Browse thousands of collectible listings from verified community sellers. Filter by category, rarity, grade, and price. Every item is presented with full detail, condition notes, grading info, and high-resolution images. LIVE AUCTIONS Place bids in real time and watch the competition unfold. Set your max bid and let the system fight for you, or jump in manually when it counts. Auctions close live, no sniping windows, no games. DIRECT TRADES See something you want but prefer to swap? Propose a trade directly with any seller. Negotiate terms through in-app messaging and seal the deal without spending a cent. COLLECTOR RATING Your reputation is everything. Undercity's proprietary Collector Rating system tracks your transaction history, community standing, and collecting behaviour, giving buyers and sellers the trust signals they need to deal with confidence. COMMUNITY FEED Post your latest pickups, share your claims, and connect with collectors who get it. The home feed surfaces the community's best finds and most active auctions in real time. DIRECT MESSAGING Talk deal terms, ask condition questions, or just talk shop. Every conversation is tied directly to the item, so nothing gets lost. WHO IT'S FOR - Trading Card Game collectors - Comic book hunters - Figure and statue collectors - Vintage artifact and memorabilia enthusiasts - Anyone serious about building and trading a collection Built for collectors, by collectors. Join the Undercity. Seek, Claim, Treasure, Trade

Faster sign-in Save your accounts and log back in instantly with Face ID or your fingerprint, and switch between accounts in a tap. Events The Events page is your home for everything happening in Undercity: in-person meetups, tournaments and conventions, plus live competitions, raffles and giveaways, sorted into Upcoming, Live and Ended. Notification sound controls A new Mute all sounds option, plus a switch between the Undercity chime and your phone's default tone. Polish and fixes A smoother home screen, refreshed event and giveaway cards, a cleaner first launch, and various performance and stability improvements.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Sep 6, 2026 · 1:12 PM Free