Key takeaways:
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- The online auction market is expected to reach USD 1530.56 billion by 2034, up from USD 739.11 billion in 2025
- The cost to build an auction app like Sotheby’s is around $8,000 to $25,000, depending on the special features and services.
- With apps like eBay and Catawiki, discovering rare collectibles and placing bids is just a tap away, anytime, from any device.
Have you ever seen people bidding on paintings or cool old items?
That’s what happens in an auction.
Sotheby’s is a famous auction platform where people buy and sell art, jewelry, and other rare items.
Building an auction app like Sotheby’s means making a place on the internet where people can see items, place bids, and buy them if they win.
In this guide, we will learn how to make a simple auction app. You don’t need to be a computer expert, just some basic ideas and creativity.
We’ll talk about what features the app needs, how to design it, and how to make it work.
It’s like building your own online store, but with bidding!
Let’s get started and have fun learning.
Market Statistics of Global Auction Applications
- As per the global research, the auction app market was valued at around $681.71 billion in 2024.
- According to a recent study, the online bidding applications market is expected to reach around $739.11 billion in 2025 and reach $1530.56 billion by the end of 2034.
- The global online auction apps market is projected to boost its valuation with a CAGR of 8.42% from 2025 to 2034.

- With a ground-level report, North America holds the largest revenue share in the auction application market.
- Applications for online auction platforms are numerous and include fundraising, the selling of goods and services, and the clearance of excess inventory.
What is Sotheby’s?
Sotheby’s is an auction platform where users can participate and check the ongoing, upcoming, and past auctions. It provides access to luxury items, art, jewelry, watches, and rare objects.
This platform offers a wide range of features such as in-app purchase, secure payment options, alert messages, real-time bidding, and more. Auction websites like Copart and Sotheby’s offer a user-friendly interface that enables users to quickly access all the features and services.
Success Story: Sotheby’s
- In October 2010, Sotheby’s company launched its iOS and iPad application for browsing live auctions and viewing catalogs.
- The Sotheby’s app introduced AR to provide a virtual home tour and get detailed information about every item.
- In 2018, it supported live auctions and paperless bidding, generating $5.2M with an around 82% sell-through rate.
- In the last month of 2018, Sotheby’s online platform recorded a huge growth of around 14% higher than in 2017 and 26% of lots sold online.
- In 2021, $800 million in sales through the online platform, around $100 million through NFT sales, and $7.3 billion of consolidated sales.
- The Sotheby’s platform donates annually around $100 million via benefit auctions and runs a community gallery.
What Are the Different Types of Auction Applications?
Auction apps come in various formats like live, timed, and silent auctions. Each offers unique bidding experiences. Users can choose based on convenience, urgency, and the nature of items.

1. Live Auction Apps
These apps replicate traditional in-person auctions with real-time bidding and live streaming. Users participate remotely as auctions unfold, offering a dynamic experience ideal for art, antiques, and high-value collectibles with competitive bidding.
2. Timed Auction Apps
Timed auctions run for a set duration, allowing users to place bids anytime before the deadline. These apps promote convenience and strategy, giving bidders time to consider offers without the pressure of live interaction.
3. Silent Auction Apps
Used mainly for charity or private events, silent auction apps let users place discreet bids without seeing others’ amounts. Winners are revealed after bidding ends, ensuring a confidential and less competitive auction experience.
Top 10 Auction Apps Like Sotheby’s
Explore the best auction apps before starting to develop. These auction applications help businesses to understand their functionality and specifications. Let’s take a look at the table:

App Name |
Launch Year |
Platform(s) |
Approx. Downloads |
Approx. Rating |
| eBay | 1995 | iOS, Android, Web | 100M+ | 4.7 |
| Catawiki | 2008 | iOS, Android, Web | 1M+ | 4.3 |
| Invaluable | 2012 | iOS, Android, Web | 500K+ | 4.4 |
| LiveAuctioneers | 2009 | iOS, Android, Web | 500K+ | 4.2 |
| Auction.com | 2007 | iOS, Android, Web | 1M+ | 4.2 |
| DealDash | 2009 | iOS, Android | 5M+ | 3.9 |
| Tophatter | 2012 | iOS, Android | 10M+ | 4.1 |
| OpenSea | 2017 | iOS, Android, Web | 1M+ | 4.0 |
| Ritchie Bros. | 2008 | iOS, Android, Web | 1M+ | 4.4 |
| Emirates Auction | 2010 | iOS, Android, Web | 1M+ | 4.3 |
Why Businesses Want to Build an Auction App Like Sotheby’s?
As discussed in the above sections, the rapid growth of the auction applications market is the primary reason to invest in auction app development services. We also provide various types of benefits that help businesses expand their company worldwide.

1. Global Reach
In the first benefit, online auction applications can easily break the geographical boundaries and reach worldwide buyers and sellers. It can increase customer engagement as compared to offline or in-person auctions and attract new sellers. This helps entrepreneurs or businesses to increase the overall user base and popularity.
2. High Revenue Potential
Moving to the second benefit, the NFT auction platform development solutions offer various types of revenue streams that help businesses generate a new income source. It involves a wide range of streams such as premium listing fees, subscription plans, advertisements, transaction fees, commission-based streams, and additional features.
3. Growing Market Demand
Coming to the third benefit, as shown in the market analysis, this clearly shows a consumer shift towards online auction platforms. These applications offer advanced features such as 24/7 availability, real-time bidding, secure payment options, global reach, and more. So this provides convenience and flexibility for users and also for businesses.
4. Data Monetization
Let’s move ahead to the fourth benefit. There are many data monetization opportunities for businesses that are offered by online auction applications. It observes users’ daily activities, habits, behaviours, purchasing patterns, pricing trends, preferences, and demographics. So, with the help of users’ useful data, businesses can offer them personalized recommendations and find new areas for improvement.
5. Automation and Scalability
In the last benefit, auction websites like eBay and Sotheby’s provide highly automated operations to streamline operations like scheduling auctions, listings, automated payment transactions, and more. These automated operations reduce manual or human efforts and also eliminate errors. Use modern tech stacks to handle thousands of actions and tasks easily.
What is the Role of AI in Auction Applications?
- Artificial intelligence analyzes or observes users’ bidding behaviour and suggests personalized recommendations.
- AI scans the images of items to verify their authenticity and categorize them accurately, thereby improving catalogs.
- AI-powered chatbots have the ability to manage users’ or customers’ issues and solve them as soon as possible.
- Artificial Intelligence sets the items’ pricing as per the market demand, bidding activity, and trends.
- With the help of AI, users can search auction items through voice command or image search, which can increase the flexibility and accessibility.
7 Key Steps to Build an Auction App Like Sotheby’s
To build an auction app like Sotheby’s, there are just simple steps that need to be followed for a successful or reliable auction mobile app development. It includes various processes such as market research, identifying features, designing, testing, and deployment. So, here we provide the car auction app development process:

1. Gather Project Needs
Let’s begin the first stage to develop an app like Sotheby’s, identify your project requirements and demands that must be added. Hire mobile app developers to create a structured list of requirements to minimize duplication and prevent misunderstandings. After that research in this competitive market about what is trending and which auction applications gain huge popularity and success rates.
2. Identify Functionalities
In the second step to make an app like Sotheby’s, create a proper list of simple and advanced features and identify some unique features to increase user engagement. It includes various types of features such as real-time bidding, listings, search & filtering, auction types, bid history, watchlist, secure payment integration, and more. Make a plan for competitors on how you can compete with existing auction apps.
3. Select Tech Stacks
Moving to the third step, to create an app like Sotheby’s, hire dedicated developers to choose the right tech stacks for your Sotheby’s clone app. There are various types of tech stacks, such as database, cloud storage, frontend and backend frameworks, APIs, testing techniques, designing tools, and many more. So, selecting the best technologies is important for successful mobile app development.
4. Design UI/UX
Coming to the fourth stage to build an app like Sotheby’s, designing a user interface is one of the most important steps, because a user’s first impression is the app’s UI. Design a user-friendly interface that lets users quickly access all the features and services of the app. It includes various design elements such as templates, themes, responsive design, consistent color palette, navigation bars, and more.
5. App Development
In the fifth stage, to develop a similar app like Sotheby’s. Employ highly-skilled or talented app developers from a mobile app development company to start the basic and complex coding. Integrate all the features and functions successfully and implement the third-party tools and applications. It includes CRM system, social media logins, analytics, payment gateways, and authentication and security.
6. Testing and QA
Let’s move to the sixth stage to develop Sotheby’s alternatives, test the app under various techniques such as user acceptance testing, load testing, unit testing, and system testing. Fix bugs and glitches that are discovered during the testing. After that, make sure all the services and specifications are working at their peak and running smoothly.
7. Launch and Marketing
In the last mobile app development process, launch the auction application on the specific deployment platforms such as Android and iOS. Make sure that all integration phases are successfully deployed on the live phase. After launching, promote the auction car apps to the global audience by using marketing techniques. It includes email marketing, affiliate marketing, blogs, advertisements, content, and product marketing.
What are the Benefits of Auction Apps for Users?
Auction apps offer users convenience, real-time bidding, global access to rare items, transparent pricing, secure transactions, and personalized alerts. Making buying and selling art or collectibles easier and more engaging.

1. Access Anytime, Anywhere
Users can join auctions from anywhere using mobile devices or computers, removing the need for physical attendance. This flexibility enables broader participation, making it easy to bid on global items at any time, from any location.
2. More Unique Items
Auction apps offer rare, exclusive, or collectible items not usually available in regular stores. This gives users access to a diverse inventory across categories like art, antiques, luxury goods, and memorabilia, perfect for collectors and enthusiasts.
3. Transparent Bidding
Real-time updates on bids, countdowns, and prices make the process clear and trustworthy. Users know where they stand in each auction, encouraging fair play and allowing informed decisions without hidden costs or manipulative pricing.
4. Better Pricing Opportunities
Competitive bidding can help users secure valuable items below market price. Unlike fixed-price models, auctions offer the chance to win great deals, especially when demand is lower or bidding competition is limited.
5. Personalized Alerts
Users receive tailored notifications about auctions matching their interests. AI-driven recommendations and bidding reminders ensure they never miss out on desired items or important auction events.
10 Must-Have Features of Auction Apps Like Sotheby’s
Explore a wide variety of features that must be added to your auction application. To increase customer engagement, you need to integrate some unique or special features. So, let’s take a look at the features:

1. User Registration
The best auction management software allows users to create an account using email addresses, social media login, and phone numbers.
2. Real-Time Bidding System
The Sotheby’s alternatives provide real-time updates on live bidding, which can increase the transparency and competitiveness in auctions.
3. Live Streaming
A similar app like Sotheby’s offers live video streaming of the auction, and bidders can follow the event and place their bid as if attending in person.
4. Secure Payment Gateways
The Sotheby’s clone apps offer various payment gateway integrations such as credit or debit cards, digital wallets, bank transfer, and net banking.
5. Item Description
The auction app like Emirates Auction, provides detailed information about each item, such as artist bios, high-quality images, pricing, and provenance.
6. Auction Calendar
Sotheby’s alternatives provide an auction calendar to show the upcoming auctions, deadlines, and preview dates. The user can set a reminder never to miss the auction time.
7. Multi-Language Support
The live bidding app like Sotheby’s, offers multiple languages that enable international users to participate in the auction, and users can set the language as per their preferences.
8. Secure Login
The Sotheby’s clone apps implement secure login methods such as biometrics, two-factor authentication, and encryption techniques.
9. Alert Messages
Auction mobile apps send push notifications to users for upcoming auctions, real-time bid updates, and other important app updates.
10. Customer Support
A similar app like Sotheby’s has a team of customer support that handles the users’ concerns and solves them as soon as possible.
What is the Cost to Build an Auction App Like Sotheby’s?
The cost to develop an auction app like Sotheby’s is around $8,000 to $25,000. The project budget can be changed due to several factors, such as project complexity, premium features, functions, size, infrastructure, security, and deployment platforms. It also has additional factors that can affect the auction app development cost, such as maintenance, development team, tech stacks, third-party integrations, and designing tools. Let’s take a look at the cost table:
Feature / Component |
Description |
Estimated Cost (USD) |
| UI/UX Design | Custom, intuitive interface design for mobile/web platforms | $1,000 – $3,000 |
| User Registration & Profiles | Secure signup/login, profile management, and user dashboards | $800 – $2,000 |
| Live Auction & Bidding System | Real-time bidding engine, auto-bidding, and countdown timers | $2,000 – $6,000 |
| Product Listings & Management | Item catalog, image uploads, search filters, and admin control | $1,000 – $4,000 |
| Payment Integration | Integration with gateways (Stripe, PayPal), invoice generation | $1,000 – $3,000 |
| Push Notifications & Alerts | Real-time notifications for bids, auction start/end, and status updates | $500 – $2,000 |
Total Approximate Cost: $8,000 – $25,000+
5 Key Factors That Affect the Auction App Development Cost
There are various crucial factors that can change the overall cost to develop an auction app like Sotheby’s. It consists development team, project complexity, platform type, third-party integrations, and many more. So, let’s take a look at the factors:

1. Design UI/UX
Let’s move to the first cost-affecting factor, designing is one of the most crucial factors that can highly affect the mobile app development cost. It includes various types of premium themes, layouts, navigation bars, push notification UI, built-in plugins, templates, and more. There are also paid design tools such as Marvel, Sketch, Figma, Adobe XD, and more.
Element |
Cost Impact |
Details |
| Basic UI Design | $800 – $1,500 | Simple layout, standard components |
| Custom UI/UX | $1,500 – $3,000 | Unique branding, animations, transitions |
| Responsive Design | $500 – $1,000 | Optimized for multiple devices |
| Design Tools & Licenses | $200 – $500 | Figma, Adobe XD, Sketch |
2. Simple and Advanced Features
The simple and advanced features are a common cost-affecting factor, as some features require high integration costs. It includes a real-time bidding system, premium listings, AI-powered chatbots, personalized recommendations, virtual auction rooms, auto-bidding, biometric authentication, and more. So, these features can fluctuate the Sotheby’s app development cost.
Feature Type |
Cost Impact |
Details |
| Basic Features | $2,000 – $5,000 | Bidding system, profiles, product listings |
| Advanced Features | $3,000 – $8,000+ | Live auctions, AI pricing, AR previews |
| Feature Complexity | Variable | More logic = more dev time and cost |
3. Post-Maintenance Services
In the third cost-affecting factor, mobile app maintenance services can also affect the cost to build an auction app like Sotheby’s, and take a long time to complete maintenance. It includes various maintenance services, such as fixing bugs or glitches, adding new functionalities, upgrading to new OS versions, applying security patches, optimizing performance, updating content, and analyzing crash data. So, these can raise the total Sotheby’s app development cost.
Service |
Cost Impact (Monthly) |
Details |
| Bug Fixes | $200 – $500 | Regular minor updates |
| Security Monitoring | $300 – $700 | Patches, SSL, compliance |
| Server Management | $100 – $400 | Uptime, performance tuning |
| Support & SLA | $300 – $1,000 | 24/7 support and response SLAs |
4. Development Team
Developers from different locations often have varying salary packages due to regional differences in living costs and standards. If businesses hire developers with higher experience, it can increase the cost compared to average experienced developers. So, select developers as per the project requirements and also hire according to the overall project budget.
Team Role |
Hourly Rate (USD) |
Required Hours |
Estimated Cost |
| UI/UX Designer | $25 – $50 | 80 – 120 | $2,000 – $6,000 |
| Frontend Developer | $30 – $60 | 150 – 250 | $4,500 – $15,000 |
| Backend Developer | $35 – $70 | 200 – 300 | $7,000 – $21,000 |
| QA Tester | $20 – $40 | 60 – 100 | $1,200 – $4,000 |
| Project Manager | $30 – $70 | Ongoing | $2,000 – $5,000 |
5. Third-Party Integrations
Moving to the last cost-affecting factor, third-party tools and applications, is another factor that impacts the cost to develop a car auction app. There are various types of third-party tools such as social media logins, authentications, payment gateways, CRM, cloud storage, AR/VR tools, maps & location, customer support chat, SMS marketing, and more. These tools have higher licensing fees and take more time to integrate, so developers charge more for their services.
Integration Type |
Cost Impact |
Details |
| Payment Gateways | $0 – $1,000 | Integration fees + transaction fees apply |
| Live Streaming APIs | $500 – $2,000 | Agora, Twilio Live, etc. |
| Push Notifications | $0 – $500 | Firebase (free), OneSignal |
| AR/VR Tools | $1,000 – $3,000+ | Depends on complexity |
| Customer Support Tools | $300 – $1,000 | Intercom, Zendesk subscriptions |
How to Earn Money From Auction Apps Like Sotheby’s?
After the successful launch of an app, it’s the right time to generate money from the app to increase the business valuation and create a new revenue stream. So, let’s explore the various monetization models:

1. Subscription Plans
In the first money-making technique, online auction apps offer paid subscription plans such as basic, premium, and enterprise. These paid membership plans help users access the live streaming, real-time bidding system, and access to premium auctions. So, users need to purchase the plans to access the unlimited features of the app.
2. Advertisements
Let’s discuss the second profit-generating technique. Auction website development solutions allow third-party agencies and organizations to showcase their products and services within the applications as advertisements. There are different types of advertisement formats, such as banner ads, native ads, display ads, video ads, and photo ads. So, businesses can charge fees of around 6% to 10%.
3. Featured Listings
Connect to the third monetization model, auction applications charge a fee to list their items in featured listings. These items show on the deals of the day and top searches. In featured listings, there is a chance or opportunity to get more serious buyers who are attracted. So, these can generate new revenue streams for businesses.
4. Collaborations
In the fourth money-making technique, collaborate or partner with related businesses or agencies. Allows them to sell their products and services through an auction application. Businesses can charge a commission on each sale of a product or service, typically ranging from 8% to 12%. According to top auction app development companies, it can serve as a commission-based income source and increase overall sales.
5. Transaction Fees
The transaction fees are one of the most common and used monetization techniques. Businesses can charge a transaction fee on every transaction, around 3% to 5%. It is simply like if users purchase some item or subscription plan, then transaction fees would be applied, which can increase the transparency. So, it can be a new money-earning technique for businesses.
Conclusion
Building an auction app like Sotheby’s requires strategic planning, robust technology, and a seamless user experience. From real-time bidding to secure payment integration, every feature must align with high-end user expectations. Collaborating with an experienced auction app development company ensures your platform is scalable, secure, and competitive. With the right partner and a clear vision, you can create a sophisticated auction experience that mirrors industry leaders, setting your app apart in the growing digital marketplace.
Frequently Asked Questions
Q1. How Much Does it Cost to Build an Auction App Like Sotheby’s?
The cost to develop an auction app like Sotheby’s lies between $8,000 and $25,000. The overall project budget can be influenced by several factors, such as features, development team, tech stacks, and third-party integrations.
Q2. How Long Does it Take to Create an Auction App Like Sotheby’s?
To create an auction app like Sotheby’s, it basically takes around 5 to 10 weeks. The timeline of development depends on a few concerns, like project complexity, developers’ working hours, size, and number of features.
Q3. Which Types of Technologies Are Used to Make an Auction App Like Sotheby’s?
There are various types of technologies used to make an auction app like Sotheby’s; here is the list:
- Python
- Java
- Laravel
- Flutter
- React Native
- HTML
- C++
Q4. What Business Models Work Best For Auction Applications?
Here, we provide the best business models for auction apps:
- Ad Revenue
- Premium Listings
- Subscription Plans
- Commission-Based Model
- Value-Added Services
- Partnerships and Collaborations
Q5. What Are the Challenges Faced During Auction Application Development?
Let’s explore the list of challenges that occur during auction app development:
- Secure Payment Integration
- Regulatory Compliance
- Scalability and Performance
- Cross-Platform Consistency
- Fraud and Authentication Prevention










