"How much does custom software development cost?" is one of the most common questions we get — and one of the hardest to answer without more context, because the range is genuinely enormous. A simple internal tool might cost $3,000. A full enterprise SaaS platform might cost $300,000. This guide gives you the real numbers, explains what drives costs up or down, and helps you figure out roughly where your project lands.
The Short Answer: Custom Software Cost Ranges
| Factor | Traditional | AI / Modern |
|---|---|---|
| Simple automation or chatbot | Complexity | $2,500 – $7,500 |
| Internal tool or dashboard | Complexity | $5,000 – $20,000 |
| MVP (minimum viable product) | Complexity | $8,000 – $30,000 |
| Web application | Complexity | $15,000 – $80,000 |
| SaaS product (full) | Complexity | $30,000 – $150,000+ |
| AI/ML integration | Complexity | $5,000 – $40,000 |
| Enterprise platform | Complexity | $100,000 – $500,000+ |
These are ranges, not quotes. A web application at $15,000 looks very different from one at $80,000. The factors below explain where on the range your project sits.
What Drives the Cost of Custom Software Up?
Feature complexity
Real-time features, complex business logic, multi-role permission systems, advanced search, payment processing, and multi-language support all add meaningful development time.
Integrations
Each third-party integration (Stripe, HubSpot, Shopify, Twilio, WhatsApp, Salesforce) adds time. APIs vary wildly in quality and documentation — some take an hour to integrate, some take a week.
Custom design
A fully custom UI/UX designed from scratch costs more than building on a component library. For most B2B tools, custom design is not necessary. For consumer products, it often is.
Scale requirements
A system designed to handle 100 users is architecturally simpler than one designed to handle 100,000. Horizontal scaling, database sharding, caching layers, and CDN configuration all add cost.
Compliance
HIPAA (healthcare), PCI DSS (payments), GDPR (EU users), and SOC 2 each have technical requirements — encryption standards, audit logging, access controls — that significantly increase scope.
AI/ML components
Building and deploying custom machine learning models, RAG systems, or AI agents adds cost both in development and ongoing infrastructure.
What Keeps the Cost Down?
Clear, fixed scope
The single biggest cost driver is scope creep — adding features during development. A well-scoped project with a written specification always costs less than one where requirements change weekly.
Working with a specialist agency
Generalist development shops charge more and take longer because they have to learn your domain. An agency that has built five similar products already has the boilerplate, patterns, and component library ready.
MVP-first approach
Build only the core features needed to validate your assumptions. Ship, get real user feedback, then invest in the next set of features. Most features businesses think they need at the start do not survive first contact with real users.
Off-the-shelf for commodity functions
Authentication (Clerk, Auth0), payments (Stripe), email (Resend, SendGrid), and file storage (Cloudflare R2, S3) should never be built from scratch. Use proven solutions for commodity functions, save custom development for your actual differentiator.
How Much Does a Web Application Cost?
A web application — meaning a product that lives in the browser, has users who log in, and does something specific for them — typically costs between $15,000 and $80,000 depending on complexity. A simple web app with a single user role, a handful of features, and one or two integrations might be at the $15,000–$25,000 end. A multi-tenant platform with complex permissions, many integrations, real-time features, and an admin dashboard is at the $50,000–$80,000+ end.
How Much Does a SaaS Product Cost?
A SaaS product is a web application plus the infrastructure to run it as a subscription business — multi-tenancy, billing and subscription management (Stripe), customer onboarding flows, usage limits, admin dashboards, and the operational overhead of a live product. Realistic starting budgets for a solid MVP SaaS are $25,000–$50,000. A full-featured SaaS with multiple plans, a marketing site, an in-app help system, and integrations will be $80,000–$150,000+.
How Much Does an MVP Cost?
An MVP (minimum viable product) should cost as little as possible to validate a specific hypothesis about whether users want your product and will pay for it. A well-scoped MVP — core feature set only, rough but functional design, basic auth and payments — typically costs $8,000–$30,000 and takes 4–10 weeks. The mistake most founders make is building an MVP that is actually a full product with the name "MVP" written on it. A real MVP is smaller and faster than you think.
How Much Does AI Integration Cost?
Adding AI capabilities to an existing product — connecting to OpenAI, building a RAG system over your documentation, adding an AI chatbot, or building a workflow automation — typically costs $5,000–$20,000 depending on complexity. A simple LLM integration (send user input, get AI response, display it) is at the low end. A full RAG system with document ingestion, vector database, retrieval logic, re-ranking, and a conversational interface is at the high end.
How Does Softnict Price Projects?
We scope every project before a contract is signed. That means a detailed specification of what will be built, what will not be built, how long it will take, and exactly what it will cost — fixed price, not hourly. No surprise invoices at the end. If scope changes during the project, we discuss it explicitly and agree on any cost adjustment before proceeding. We work with startups and growing businesses primarily, with most projects falling in the $2,500–$50,000 range.
Want a real estimate for your project? Book a free 30-minute call. We'll listen to what you want to build, ask the right scoping questions, and send you a fixed-price proposal within 48 hours — no commitment required.
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