Shopping Cart Software Development
Turn your checkout flow into a conversion engine with our shopping cart software development services. We build and optimize custom shopping cart software, enhance user experience, and use AI-driven insights to cut abandonment rates, optimize checkout experiences, and boost your sales.
Trusted by clients worldwide
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Our custom shopping cart software development solutions
From recovery to optimization, our shopping cart development services help e-commerce brands rebuild, enhance, and scale their checkout experience. We combine technical excellence, modern design, and AI-powered insights to boost conversions and customer satisfaction.
Checkout optimization & re-architecture
Optimize checkout architecture by reducing query load, refactoring cart-calculation logic, implementing caching, rate limits, and eliminating blocking operations that slow down conversion-critical steps.
Shopping cart rescue & performance optimization
We step into unstable codebases, map the current architecture, identify performance bottlenecks, and stabilize critical modules, such as checkout, payment flows, and inventory synchronization.
AI-driven cart & customer insights
Harness AI to predict buyer behavior, automate cart recovery, and deliver personalized recommendations that turn browsing into buying.
Payment & shipping integration
Implement secure and compliant payment flows, including multi-step 3D Secure, subscription billing, custom tax logic, split payments, retry queues, escrows, and webhook validation to eliminate charge failures and data mismatches.
Omnichannel & third-party integrations
Integrate 3rd-party systems using APIs, background sync jobs, and event-driven patterns. We ensure idempotent operations, conflict handling, and consistent data across CRMs, ERPs, and inventory systems.
Continuous performance enhancement & maintenance
We monitor and optimize cart performance using DB indexing, query profiling, caching strategies, async job queues, and CDN tuning. This ensures sub-200ms response times for critical checkout endpoints even under high load.
Boost sales with AI solutions for your shopping cart software
Integrating AI into your checkout and cart systems lets you automate recovery, tailor product recommendations, and optimize the buying experience for maximum engagement and sales.
AI-driven cart recovery
AI-driven cart recoveryDetect shopper hesitation and trigger automated reminders, personalized offers, or incentives to recover abandoned carts and maximize sales.
Personalized product recommendations & upsells
Personalized product recommendations & upsellsAnalyze browsing behavior and purchase patterns to deliver dynamic product suggestions, bundles, and discounts that increase order value and satisfaction.
Intelligent checkout optimization
Intelligent checkout optimizationUse AI to identify friction points, predict drop-offs, and suggest real-time improvements to forms, payment options, and checkout flow for smoother conversions.
AI chatbots & virtual shopping assistants
AI chatbots & virtual shopping assistantsDeploy Bedrock LLM-powered assistants that go beyond generic Q&A. These assistants guide customers, recommend alternatives, and resolve checkout issues. Using a Return-of-Control workflow, they ensure safe, consistent, and predictable interactions.
Predictive analytics for sales & retention
Predictive analytics for sales & retentionLeverage AI insights to forecast buying intent, detect churn risk, and recommend targeted re-engagement strategies, improving customer retention and lifetime value.
Dynamic pricing & discount optimization
Dynamic pricing & discount optimizationAI analyzes market trends, user behavior, and inventory to suggest optimal pricing, promotions, and discounts, maximizing revenue while staying competitive.
Boost conversions, cut abandonment, and create a seamless checkout with AI-powered shopping cart software.
Start achieving measurable e-commerce success!
Projects we delivered for our clients
Take a look at our client success stories, which demonstrate our ability to deliver shopping cart software solutions that enhance checkout performance, integrate advanced features, and drive business growth.
USA
Beauty, Cosmetics
AI-powered skincare recommendation app built in 4 months
Solution:
Onix built an iOS mobile app that uses AI and data science to help users find safe and personalized skincare products, create custom routines, and compare thousands of brands.
Result:
After launch, the app analyzed 45K+ products and served 100K+ happy customers.
USA
Sports & Fitness
BetterMe Shopify Store – smart fitness shopping
Solution:
Our team built a fully-functional Shopify store, featuring sports apparel, custom plugins, product recommendations, and a mobile-friendly design.
Result:
Customers enjoyed a seamless shopping experience, which boosted engagement and promoted a healthy, active lifestyle.
Switzerland
Manufacturing
360° Shower – real-time shower retrofit tracking
Solution:
Onix developed a multi-platform solution including desktop, tablet, and smartphone apps to streamline project management, real-time offer creation, and field service for sanitary professionals.
Result:
Installers managed customer projects more efficiently, reduced manual work, and enhanced service quality.
Industries we help grow online
B2B marketplaces & wholesale platforms
We help businesses sell to other businesses more efficiently with custom portals, automated pricing rules, bulk ordering, and automated approval workflows, streamlining business transactions.
Travel & booking platforms
We optimize online booking systems with frictionless multi-step checkouts, dynamic pricing, and secure payment integrations that make travel planning effortless.
Tech & SaaS
For subscription-based software and digital products, we develop customizable shopping cart software that supports seamless subscription experiences, flexible pricing models, and automated renewals.
Sports, fitness & wellness
Whether it’s selling activewear or fitness programs, we develop shopping cart systems that help brands connect with customers through personalized offers, adopt AI-driven cart recovery, and enable a smooth shopping experience.
Direct-to-consumer (D2C) startups
We help fund startups and SMBs recover failed shopping cart projects, implementing one-click checkout flows, predictive engagement, and integrated analytics to scale customer acquisition and retention effortlessly.
Education & online learning
For platforms delivering courses or digital materials, we develop custom shopping cart solutions that integrate course sales, subscription billing, and shopping cart automation to streamline enrollment and checkout processes.
Retail & E-commerce brands
We build scalable, high-performing shopping cart systems that streamline inventory management, improve checkout speed, and enhance customer experience through AI-driven personalization.
Health & medical products
For companies offering wellness devices, supplements, or medical-grade products, we ensure secure and compliant shopping cart flows, product categorization, and checkout experiences to ensure safe and seamless purchases.
Looking to launch, scale, or rescue a commerce platform? Onix delivers predictable results — faster, smarter, and with AI inside.
Partner with Onix the way that works best for you
As a shopping cart software provider, we offer adaptable engagement options for our customer success for shopping cart software services.
Staff augmentation
Need extra hands? Add Onix specialists to your existing team to fill skill gaps and boost delivery speed.
Dedicated team
Get a remote team focused solely on your project – hand-picked for your business goals and ready to manage everything from start to finish.
Time & materials
Perfect for evolving projects. Pay only for the actual hours and resources used, while maintaining flexibility and control.
Fixed price
Have clear requirements? We’ll provide a precise quote, timeline, and deliver your project on budget – no surprises.
Full-process development
From idea to launch, our software development service experts cover the full cycle: design, development, QA, and support – all under one roof.
Insights from our experts
Struggling with abandoned carts and drop-offs?
Don’t let checkout issues kill your sales!
Let’s build custom shopping cart software powered by AI that delivers faster checkout, drives conversions, and long-term loyalty.
FAQs
How much does shopping cart software development or optimization cost?
It really depends on what your store needs. A small shopping cart optimization project might cost around $20,000–$40,000, while building a full-featured or AI-powered solution can exceed $100,000. After a quick audit, we provide a detailed estimate tailored to your goals and current system state.
Can you fix or rescue an existing shopping cart or checkout software?
Yes. We specialize in rescuing and enhancing existing shopping cart software systems, fixing bugs, optimizing performance, and rebuilding unstable architectures to improve conversions.
Do you integrate AI into shopping cart solutions?
Absolutely. We implement AI-powered tools for cart recovery, personalized recommendations, user behavior prediction, and analytics to make your shopping cart software system smarter and more profitable.
How long does it take to recover or optimize a shopping cart system?
Most optimization or recovery projects take from a few weeks to several months, depending on the system’s scale and current state. We always start with an audit to define clear timelines and priorities.
Can you integrate custom payment gateways or third-party systems?
Yes. Our team can integrate any custom payment gateway, CRM, ERP, or analytics tool into your shopping cart solution software for a unified e-commerce ecosystem.
What are the top benefits of optimizing or rebuilding a shopping cart system?
A well-optimized integrated shopping cart software reduces cart abandonment, boosts checkout speed, enhances user experience, and increases conversions, driving measurable revenue growth.