Shack

Shack is the AI-powered auction app that turbocharges the second-hand marketplace. Designed in Switzerland and now available in Switzerland, Germany, Austria, and the United States, it connects buyers and sellers in a dynamic, fee-free environment. This platform is built for speed-seekers: individuals decluttering their homes, treasure hunters searching for unique collectibles, and savvy flippers looking to profit. Shack's core mission is to eliminate friction. It uses cutting-edge AI to automate the entire listing process—just snap a photo, and the AI generates titles, descriptions, and price suggestions instantly. With a staunch commitment to authenticity, Shack bans mass-produced retail items and professional dropshipping, ensuring a marketplace of genuine, curated treasures. By removing all commissions and advertisements, it delivers a transparent, fair, and user-centric experience where the focus is purely on the thrill of the auction. Unlock space and discover treasures faster than ever before.

Sherlock Shack - AI-Powered Listing

Launch an auction in seconds, not hours. Simply take a photo of your item. Shack's advanced AI instantly analyzes the image and automatically generates an optimized title, detailed description, relevant keywords, and intelligent price suggestions. This eliminates the guesswork and tedious typing, letting you list items at record speed and with professional polish.

Map Shack - Local Treasure Discovery

Find the most exciting auctions happening right in your neighborhood. Shack's interactive map provides a real-time visual feed of nearby listings. This hyper-local discovery tool turns your city into a treasure hunt, allowing you to bid on items you can pick up quickly and easily, fostering community connections and sustainable consumption.

Live Bidding & Real-Time Excitement

Experience the authentic thrill of an auction from your phone. Shack's live bidding system updates in real-time, so you never miss a beat. Compete transparently with other buyers, place your bids instantly, and feel the adrenaline rush as the clock counts down, all within a secure and fair environment designed for genuine engagement.

100% Fee-Free Promise & Secure P2P Payments

Sell and buy with zero platform commissions or hidden fees. Shack's business model rejects ad spam and data sharing, prioritizing user value. For seamless transactions, it supports peer-to-peer payments including TWINT, PayPal, and optional cryptocurrency, giving both parties flexibility and control over their financial exchange.

The Home Declutterer

Quickly monetize unwanted items clogging up your living space. Use Shack's AI to snap, list, and sell furniture, electronics, or decor in minutes. The local focus means fast pick-up, turning your clutter into cash efficiently and freeing up valuable space in your home without the hassle of traditional selling platforms.

The Vintage & Collectible Hunter

Discover rare finds and unique treasures not available from big-box retailers. Scour the interactive Map Shack for nearby auctions of vintage clothing, rare vinyl records, or unique collectibles. The curated, authentic marketplace ensures you're bidding on genuine pre-loved items with history and character.

The Side-Hustle Flipper

Source undervalued items locally and flip them for profit with maximum efficiency. Identify opportunities through the map, win auctions at great prices, and use the AI listing tool to rapidly refurbish and relist items. The fee-free structure maximizes your profit margin on every successful flip.

The Sustainable Shopper

Participate in the circular economy by buying and selling pre-owned goods in your community. Shack facilitates sustainable consumption by extending the lifecycle of products, reducing waste, and connecting local buyers and sellers. Find quality second-hand items and give them a new home, effortlessly.

How do I list an item for auction?

Listing is incredibly fast. Open the app, take a photo of your item, and Shack's AI (Sherlock Shack) will automatically analyze it. The AI suggests a title, description, and starting price. Review the suggestions, confirm, and your auction goes live in seconds. The entire process is designed for speed and ease.

Are there any fees for using Shack?

No. Buying and selling on Shack is completely free of charge. The platform has no transaction fees or commissions for users. This 100% fee-free promise is core to Shack's mission, differentiating it from other marketplaces that take a percentage of your sale.

What payment methods are supported?

Buyers can pay sellers directly using popular peer-to-peer methods. Supported options include TWINT (CHF), PayPal (EUR), and optional cryptocurrency for those who offer it. This flexible system ensures secure and fast transactions directly between the two parties involved in the sale.

What devices are supported?

Shack is currently available as a native iOS application. You can download it from the App Store if your device is running iOS 17.0 or later. An Android version is not available at this time, keeping the development focus sharp on quality and performance for iOS users.