Best online TCG trading app
I’ve watched the community grow on this app and it’s been a real pleasure!
Free
About
A premium marketplace and auction house for serious collectors to buy, sell, and trade rare items. Discover graded TCGs, comics, figures, and artifacts with detailed listings and live auctions. Connect with other collectors and build your reputation.
✓Browse collectible listings
✓Participate in live auctions
✓Propose direct trades
✓Collector rating system
✓Community feed
✓Direct messaging
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What's New in Undercity
1.6.0
June 29, 2026
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.
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FAQ
What kind of items can I find on Undercity?
Undercity is designed for serious collectors and features a wide range of items including graded TCGs, key issue comic books, rare figures, vintage artifacts, and memorabilia. You can browse thousands of listings filtered by category, rarity, grade, and price.
How do live auctions work on Undercity?
Live auctions on Undercity allow you to place bids in real time. You can set a maximum bid and let the system manage it, or manually bid during the auction. Auctions close live, ensuring a fair and transparent bidding process without sniping windows.
Can I trade items on Undercity without using money?
Yes, Undercity supports direct trades. You can propose a trade with any seller directly through the app. You can negotiate terms via in-app messaging to complete the deal without any monetary transaction.
How does the Collector Rating system work?
The proprietary Collector Rating system tracks your transaction history, community standing, and collecting behavior. This system provides trust signals for both buyers and sellers, enhancing confidence in dealings within the community.
Is Undercity available on Android devices?
Currently, Undercity is supported on iPhone and iPod devices. Information regarding Android availability is not provided in the current data.
How often is Undercity updated?
The latest version of Undercity is 1.5.0, which was last updated on June 3, 2026. This indicates a relatively frequent update schedule for the application.
What is the user sentiment for Undercity?
Undercity has received a perfect rating of 5.0 stars from 1 rating, suggesting very positive initial user sentiment. This high rating indicates strong satisfaction among its early users.
Does Undercity have ads?
No, Undercity does not contain advertisements. The application is free to use and does not display any ads to its users.