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Solutions

Software development
that drives results

EXTFOX builds high-performing Shopify stores, SaaS platforms, intelligent AI systems, and ecommerce optimization that drive real business results.

Three cores: Shopify Plus development and CRO, AI systems including RAG and voice agents, and product development from MVP to SaaS.

Shopify development

Transform your Shopify Plus store with advanced customization, checkout extensions, and performance optimization. We help DTC brands maximize conversion rates and average order value through expert development.

AI & ML development

Leverage cutting-edge AI technology to automate workflows, enhance decision-making, and create intelligent systems that scale with your business. From RAG systems to autonomous agents, we build AI solutions that drive real results.

  • AI Chatbots & assistants

    Customer assistants, lead systems, internal tools, and AI MVPs designed around the way your business works.

    Learn more

Product development

Build scalable software products from concept to launch. We specialize in creating enterprise-grade SaaS platforms, web applications, and mobile solutions that grow with your business.

Dusan Jovanovski, Founder at EXTFOX

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Dusan J. Founder @ EXTFOX.com | Custom Shopify Plus development, AI commerce systems, and product MVPs for DTC brands

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FAQ

EXTFOX offers software development across three areas: Shopify development (Plus storefronts, CRO, checkout extensions, headless commerce, agentic integrations), AI & ML development (chatbots, intelligent search, voice agents, integrations), and product development (MVPs, full-stack apps, SaaS platforms).
We provide Shopify Plus storefronts, Shopify CRO with research and A/B testing, checkout extensions using Shopify Functions and UI Extensions, headless commerce when it fits, and agentic integrations around ERP and OMS. Checkout extensions help increase conversion and average order value through native solutions that outperform private apps.
RAG (Retrieval-Augmented Generation) systems combine information retrieval with AI generation to provide intelligent, context-aware responses. They're ideal for knowledge management, intelligent search, content creation, and customer support. RAG systems understand your business context and deliver accurate, relevant information from your data sources.
We build SaaS platforms from MVP to enterprise scale with subscription management, multi-tenancy, advanced features, and scalable architecture. Our approach includes rapid MVP development for market validation, full-stack development with modern technologies, cloud infrastructure setup, and ongoing optimization.
AI automation streamlines operations, reduces manual work, and improves efficiency. We build AI chatbots and assistants for customer support, workflow automation systems, intelligent decision-making tools, and custom AI integrations.
We start with your product idea and market fit, then build a minimal viable product with core features to test with users. This helps validate the concept quickly and iterate before full-scale development. MVPs typically launch in 4-8 weeks depending on complexity.
Shopify checkout extensions (Functions and UI Extensions) are native solutions that run within Shopify's infrastructure, providing better performance, security, and reliability than private apps. They have no API rate limits, can modify checkout UI directly, require minimal maintenance, and inherit Shopify's security.
Timeline depends on scope. MVPs typically take 4-8 weeks, full SaaS platforms can take 3-6 months, checkout extensions take 2-3 days, and AI systems vary based on requirements. We provide detailed timelines during discovery.
Yes. We work with DTC brands, enterprise companies, and funded startups. Clients include Clean Skin Club, Smilepen, The Honest Kitchen, Biorenewal, and SR Bank.