Shack

Shack is a revolutionary, AI-powered auction app that is continuously redefining the peer-to-peer marketplace. Born from Swiss precision and a commitment to iterative innovation, it transforms the way we buy and sell second-hand goods by systematically eliminating friction, fees, and fake listings. The platform is engineered for a continuous cycle of improvement, serving anyone looking to declutter their space, hunt for unique local treasures, or build a sustainable side hustle—all within a secure and community-driven ecosystem. Its core value proposition is a seamless, 100% fee-free, and ad-free experience that relentlessly prioritizes authenticity, speed, and local connection. By leveraging advanced native AI tools, Shack empowers users to create detailed listings in seconds with just a photo, while its interactive live map connects buyers with exciting auctions happening in their immediate vicinity. This virtuous loop of effortless listing and hyper-local discovery is designed to promote reuse, reduce waste, and make participation in the circular economy not just practical, but genuinely exciting and rewarding. Available in Switzerland, Germany, Austria, and the United States, Shack is your intelligent wingman for a smarter, more sustainable way to trade.

Sherlock Shack - AI-Powered Listing

Launch your auction at record speed with AI that does the heavy lifting. Simply take a photo of your item; Sherlock Shack analyzes it and automatically generates a compelling title, detailed description, relevant keywords, and intelligent price suggestions. This feature embodies Shack's commitment to continuous improvement, streamlining the selling process to be smoother and more efficient with every use, so you can list in seconds, not minutes.

Map Shack - Interactive Local Discovery

Discover the most exciting auctions happening right around the corner with the interactive Map Shack. This feature provides a real-time, visual map of nearby listings, transforming treasure hunting into a local adventure. It fosters a community-driven ecosystem by connecting you with buyers and sellers in your immediate vicinity, making pickup convenient and promoting a sustainable, hyper-local circular economy that gets better as more people join.

Police Shack - Verified Safety & Trust

Security is paramount and constantly refined. Police Shack conducts automated safety checks, including verifying seller identities to help ensure authentic interactions and protect the community from fraudulent listings. This ongoing curation process helps maintain a platform free from mass-produced goods from wholesalers, prioritizing genuine peer-to-peer transactions and building a foundation of trust that improves with every verified transaction.

100% Fee-Free & Ad-Free Promise

Shack is built on a radically transparent model that is continuously upheld: no transaction fees for buyers or sellers, no spammy advertisements cluttering your experience, and no sharing of your data with advertisers. This commitment ensures that the value stays entirely within the community, making every sale more profitable for the seller and every purchase more rewarding for the buyer, reinforcing a superior marketplace experience.

Decluttering & Monetizing Unused Items

Effortlessly turn clutter into cash. Whether it's old electronics, furniture, or clothing, Shack's AI-powered listing (Sherlock Shack) makes it simple to photograph, list, and sell items you no longer need. The fee-free model ensures you keep 100% of the sale price, providing a rewarding and sustainable way to clear space while giving your items a second life within your local community.

Local Treasure Hunting & Unique Finds

Become a local treasure hunter. Use Map Shack to explore live auctions in your neighborhood and bid on unique, pre-loved items you won't find in regular stores. This use case is perfect for finding vintage decor, rare collectibles, or quality goods at great prices, all while enjoying the thrill of real-time bidding and supporting a circular economy right on your doorstep.

Building a Sustainable Side Hustle

Systematically grow a flipping side hustle with minimal friction. Savvy users can leverage Shack's efficient tools to source undervalued items locally via the map and resell them after minor refurbishment. The rapid AI listing and zero selling fees maximize profit margins, turning a sustainable practice into a rewarding iterative business model that improves with every successful transaction.

Secure & Authentic Local Community Trading

Engage in trustworthy, convenient local commerce. For buyers and sellers who prioritize security and authenticity, Shack provides a curated platform. Police Shack's verification processes and the community-focused, local nature of transactions facilitated by Map Shack reduce the risks commonly associated with online marketplaces, creating a safer, more reliable environment for peer-to-peer trade that strengthens with community feedback.

How do I sign up for Shack?

You can easily sign up for Shack using Apple Sign-In directly within the iOS App. The process is designed to be quick and secure, getting you started on listing or bidding in just a few moments.

Are there any fees for buying or selling?

No. Buying and selling on Shack is completely 100% free of charge. The platform does not charge any transaction fees to buyers or sellers, adhering strictly to its fee-free promise.

What payment methods are available?

The buyer can pay the seller in CHF via TWINT, EUR via PayPal, or via cryptocurrency if the seller offers this optional payment method. The payment is arranged directly between the buyer and seller.

What devices are supported?

Shack is currently available only for iOS devices. You will need an iPhone or iPad running iOS 17.0 or a later version to download and use the app from the App Store.