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A custom web application built by a senior Ukrainian engineering team typically ranges from $8,000–$15,000 for an MVP to $40,000–$80,000+ for a full production platform with integrations, analytics, and DevOps. The main cost drivers are the number of user roles, integration complexity, and whether you need real-time features. Use the estimator above for a project-specific figure.
Senior Ukrainian software engineers typically bill at $40–60/hr depending on specialisation — full-stack, mobile, DevOps, or AI/ML. This is 2–3× lower than equivalent senior rates in Western Europe ($90–130/hr) or the US ($110–160/hr), with no difference in technical quality. Hardened Soft operates at competitive senior rates — get in touch for a project-specific quote.
A cross-platform mobile app (iOS + Android via React Native or Flutter) takes 8–14 weeks for an MVP and 20–36 weeks for a production-grade release with backend, admin panel, push notifications, and CI/CD. Native apps (Swift/Kotlin) add roughly 30% to timelines due to maintaining two codebases.
Most software MVPs fall in the $8,000–$25,000 range when built by a senior-only Ukrainian team. The range depends on product type: a landing page with a waitlist is under $5,000, a SaaS MVP is $10,000–$18,000, and a marketplace MVP is $15,000–$28,000. An MVP should do one thing well for a defined user — scope creep is the single biggest cost driver.
A custom e-commerce store ranges from $6,000 (headless Shopify storefront with standard checkout) to $35,000+ for a fully custom platform with multi-vendor support, inventory management, subscription products, and a custom checkout flow. Shopify-based builds are faster and cheaper; headless or custom platforms give you full control but cost more upfront.
Adding AI features — a chatbot, document summariser, semantic search, or recommendation engine — to an existing application typically costs $4,000–$12,000 depending on complexity. A basic OpenAI integration with a simple prompt chain is at the low end; a full RAG pipeline with vector database, custom embeddings, streaming UI, and cost controls is at the high end.
The five biggest cost drivers are: (1) scope — the number of distinct features and user flows; (2) integrations — every third-party API adds setup, error handling, and maintenance; (3) real-time requirements — WebSockets and live data are more expensive than CRUD; (4) scale — infrastructure for 100k+ users costs significantly more to architect; (5) compliance — GDPR, HIPAA, or SOC 2 readiness adds meaningful engineering overhead.
A single freelancer is cheaper upfront but rarely covers design, frontend, backend, QA, and DevOps — so you end up managing multiple people. A structured agency or studio like Hardened Soft provides a complete senior team with a single point of accountability, fixed-scope estimates, and documented handoffs. For anything beyond a simple landing page, the studio model typically delivers better value per dollar.
A credible estimate multiplies engineering effort by a rate. This calculator breaks your project into the components that actually consume effort — platform, scope, feature set, design depth and integrations — assigns each a day range from our delivered projects, then applies our senior engineering rate. That is why the output is a range and not a single confident number.
No. This one covers any project type — web, mobile, AI or internal tooling. If you are specifically pricing a SaaS product, the SaaS development cost calculator asks SaaS-specific questions about tenancy, billing and scale, and returns a tighter range.
Close enough to decide whether to keep talking, not close enough to sign. Expect roughly 20% either side of a final fixed-scope quote. It cannot see your legacy systems, your compliance obligations, or the integration that turns out to have no documented API.